Bucks Fungus Group
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Members’ Finds, Autumn 2020

This page has been developed and introduced to compensate in a very small way for the entire lack of the group’s activities this autumn brought about by the regrettable Covid 19 situation. We would like to encourage members to go out looking for fungi anywhere in the county and send in their photos to share with everyone.

Rare or common, identified or not, it doesn’t matter! We will name it for you if we can (but certainly won’t be able to name everything you send in) and your photos will reflect what is fruiting well at the moment and what others should be looking out for in their local patch.

We’d like as many members as possible to contribute, so please get out there with your cameras / phones and email your photos (do not reduce images in size before sending) to Penny. Please include the site and date of your find together with any other points of interest such as substrate and habitat.

HAPPY HUNTING!

NB    Of necessity, virtually all identifications below have been made from photographs without recourse to checking with a microscope. Those collections for which a scope was used are marked thus . No guarantee to the determination can be given, therefore, unless that symbol is displayed. All photos are checked and selected by Penny. All notes within the text boxes are written by Penny. Please contact her with any queries etc.

Looking for an image of a particular fungus? Try clicking on 'Find a fungus image'. We have hundreds of fungus photographs to share with you, some of species hard to track down in reference books, some with excellent microscopic details illustrated as well.

Click on thumbnail to see full size
For the complete and regularly updated list of entries click Latin or English
Total number of species to date: 317
Click here to see stunning images of Slime Moulds by Barry Webb

Contributors / Photographers: Bolton, Margaret; Catterson, John; Cullington, Paul & Penny; Davis, Peter; Dodsworth, Martin & Joanna; Douglas, Greg; Ebdon, Sarah; Fortey, Richard; Goby, Paul; Gudge, Juliet; Harrison, Tim; Kibby, Geoffrey; Knight, Tony; Launder, Jesper; Marshall, Tony; McDade, Audrey; McKenzie Dodds, Jackie; Padmore, Andrew; Peace, Alison; Peace, Emily; Schafer, Derek; Soler, Claudi; Standing, Nick and Toni; Tortelli, Mario; Warhurst, Justin; Webb, Barry; Williams, Claire.

Entries with a green background indicate rare sightings
Image Details
Clitocybe rivulosa by John Catterson Clitocybe rivulosa by John Catterson October 20th Clitocybe rivulosa (Fool’s Funnel)

John Catterson found good numbers of this species in a churchyard in Hughendon. A common grassland species, this was previously known as C. dealbata and synonymy with C. rivulosa wrankles with some mycologists including Penny C. because the distinct pink tones and typical droplet spots on the cap (seen clearly in John's photos) together with grassland habitat seem very distinct from the white to buff predominantly woodland species which is C. rivulosa. It often forms fairy rings in lawns and is dangerously toxic, so do not mistake for Marasmius oreades (Fairy Ring Champignon)!

October 19th 2020

Trichia decipiens by Barry Webb October 19th Trichia decipiens (a Slime Mould with no common name)

Barry Webb found these tiny orange blobs on stalks on rotting fallen Beech in Burnham Beeches. Most Slime Moulds have white plasmodium at this immature stage when identification even to genus is not possible, but a few species have brightly coloured plasmodium and can be named. There are many species of the genus Trichia but only this particular species has white stalks with orange to pink blobs on top. We'll try and add photos of its mature stage if / when available.
Tricholoma populinum by Penny Cullington October 19th Tricholoma populinum (Poplar Knight)

Penny C. noticed a cluster of unfamiliar mushrooms in grassy litter under mixed trees in Burnham Beeches. On picking one she noticed the Tricholomoid habit and strong mealy smell (of musty flour). Luckily Geoffrey Kibby was on hand and recognised the species from collections in Kew Gardens where it grows under Aspen. This is a rare Knight, known in England more or less south of the Thames, and always under Aspen or hybrid Poplars. So a new species for the site and the county and possibly also the further north it has been observed.
Tricholoma saponaceum by Penny Cullington Tricholoma saponaceum by Penny Cullington October 19th Tricholoma saponaceum (Soapy Knight)

We do have a previous photo of this species (dated Oct 14), but it is so variable a species and this collection from Burnham Beeches so different that it is worth including again. Found under Birch by Penny C., in contrast to our other photo these specimens had smooth caps with a distinct olive green tint, yellowish gills and a stem with faint black flecks (visible in photo 2) The common factor is the strong soapy smell.
 Tricholoma lascivum by Penny Cullington October 19th Tricholoma lascivum (Aromatic Knight)

This collection, found under Beech in Burnham Beeches by Geoffrey Kibby (photo Penny C.), completes our quartet of the white capped Knights. Three of these have unpleasant pervasive chemical smells but the fourth, T. columbetta, can be recognised by its lack of smell (see photo dated Oct 16). Today's species is by far the commonest and is found only under Beech whereas T. album (see photo dated Sept 26) is found only under Oak and T. stiparophyllum (see photo dated Oct 13) is found only under Birch. This sounds simple enough but so often they occur where there's mix of these trees present. Time to admit defeat and be satisfied with knowing that it must be one of these three!
 Cortinarius semisanguineus by Penny Cullington  Cortinarius semisanguineus by Penny Cullington October 19th Cortinarius semisanguineus (Surprise Webcap)

At last a Webcap which is easy to recognise! Mario Tortelli found this singleton under Beech in Burnham Beeches (photo Penny C.) Though the ochre brown cap and stem colour are similar to many other medium sized mushrooms, turn it over for the surprise - bright red gills! This species is unique in having this combination of characters, hence the species name semisanguineus: half red. There are also a couple of Webcaps which are entirely red i.e. cap as well. So look out for one under Pine (C. sanguineus) or under Beech and Oak (C. puniceus)
 Clitocybe (Infundibulicybe) geotropa by Greg Douglas October 19th Clitocybe (Infundibulicybe) geotropa (Trooping Funnel)

A very common species with a new genus name, this was found in Long Wood, Holmer Green, in deciduous litter by Greg Douglas. One of the largest funnels and often confused when old with the equally large and common C. nebularis, the features to note are the strongly decurrent (sloping) gills and the raised bump in the cap centre (not really visible here). We hope to show more detailed photos in further examples.
 Xerocomellus pruinatus by Penny Cullington  Xerocomellus pruinatus by Penny Cullington October 19th Xerocomellus pruinatus (Matt Bolete)

Penny C. found first two then a couple more specimens of this distinctive bolete - one which has features to separate it from the many very similar and confusing members of Xerocomellus (previously in the genus Boletus). The rich warm evenly brown rounded cap has a felted slightly lumpy surface, the pores and stem are bright yellow and bruise blue but only slowly, the stem has yellow flesh within and at its base has yellow mycelium which tends to bind to the litter (visible in photo 1) It is common under Beech.
Hymenochaete rubiginosa by Penny Cullington October 19th Hymenochaete rubiginosa (Oak Curtain Crust)

This colony of dark brown tiered brackets was found by Penny C. on fallen Oak in Burnham Beeches. It is similar in size., style and shape to the much more common Stereum hirsutum (see photo dated Sept 25) but is always this deep brown colour, both on the upper surface and underneath - the central top piece in the photo has been turned over to show this. It is only found on fallen Oak.
 Lycogala terrestre by Penny Cullington  Lycogala terrestre by Penny Cullington October 19th Lycogala terrestre (Wolf's Milk

Penny C. noticed this collection on a rotting deciduous log in Burnham Beeches. Not a fungus but a slime mould, it is common and easy to spot for obvious reasons though each blob is less than 1 cm across. When still this colour it is not yet mature and if touched just collapses, but it turns pale beige as it dries off (see photo 2 where there was one mature fruit body on the opposite side of the log) and gradually breaks down to release the spore mass within.
Helvella lacunosa by Penny Cullington Helvella lacunosa by Penny Cullington Helvella lacunosa by Penny Cullington October 19th Helvella lacunosa (Elfin Saddle)

Claudi Soler found this singleton in Beech litter in Burnham Beeches (photo Penny C.) There is obvious similarity between this species and the much more common White Saddle (dated Oct 5th) though the dark grey colour makes it less easy to spot amongst the litter and it is generally slimmer with a smaller head - this particular example was rather paler than sometimes. Photo 3 shows a darker and younger specimen found here by Barry Webb on Sept 29th.
Leucoagaricus sericifer by Penny Cullington October 19th Leucoagaricus sericifer (a Dapperling with no common name)

Claudi Soler found this rare species on the same woodchip pile as the Melanophyllum in Burnham Beeches - identified by Geoffrey Kibby, photo Penny C. An all white species with a silky cap and delicate ascending ring on the stem which is soon lost, this was a nice find as we have only one previous county record. Caps can get to 4.5 cms across but these were smaller, and it occurs in deciduous woodland usually on soil.
 Melanophyllum haematospermum by Penny Cullington October 19th Melanophyllum haematospermum (Redspored Dapperling)

This distinctive species has the privilege of being our 300th of season on this webpage!! It was found by Penny C. amongst stinging nettles on a well rotted woodchip pile in Burnham Beeches. The rather dull dark cap is nothing to write home about, but turn one over and you're in for a surprise! This is the only mushroom to have red spores and such crowded red gills. It is loosely related to the genus Lepiota (hence the name Dapperling); note also the torn membranous covering - still in place on the youngest specimen at the front - which adheres to the cap margin as the fruit body expands. Not that common a species, but not rare though easily overlooked unless you pick one!
Agaricus xanthodermus by Penny Cullington October 19th Agaricus xanthodermus (Yellow Stainer)

We have this species already, dated Sept 10th, but these were such pristine specimens - growing on a large woodchip pile at Burnham Beeches and found by Claudi Soler (photo Penny C.) - that we felt it was worth including. it's quite late in the season to be finding this but all the salient features are showing nicely.
Xylaria hypoxylon by Penny Cullington October 19th Xylaria hypoxylon (Candlesnuff Fungus)

Penny C. found this fruiting on fallen Beech at Burnham Beeches. This is one of the commonest Ascomycetes and can be found on fallen deciduous wood but seems to have been late to get going this season and only just reaching a size worth illustrating. The spores form on the white tips and if mature one can flick them and see a small puff as they disperse.

October 18th 2020

Mycena polygramma by Antony Knight Mycena polygramma by Antony Knight October 18th Mycena polygramma (Grooved Bonnet)

Antony Knight found (and identified) this group of Bonnets fruiting on the roots of Ash in Rushbeds Wood. It is very similar to other wood inhabiting Bonnets of medium size and easily mistaken for M. galericulata (Common Bonnet). However, with care you can recognise that it's different in the field with its rather grey tones to cap and stem and, more importantly, the fine longditudinal grooves on the stem - its unique field character and seen here in photo 2. However, these lines are not always present or nearly as obvious as they are in today's collection, in which case it's a matter of detective work with a scope to separate it from other likely contenders.
Cortinarius flabellus by Penny Cullington October 18th Cortinarius flabellus (a Webcap with no common name)

Penny C. found this collection under Sweet Chestnut at Pullingshill Wood, identified the next day by Geoffrey Kibby. A small member of the Telamonia group, it has a bright brown cap with a white margin and is covered in fine white hairs which show up as it dries. It can be found in large troups under various deciduous trees and is quite common.
Cortinarius valgusn by Penny Cullington October 18th Cortinarius valgus (a Webcap with no common name

Penny C. found this collection on a road side bank under Beech at Pullingshill Wood, identified the next day by Geoffrey Kibby. This is a fairly large and common Webcap with a dry cap and stem (a member of the Telamonia group) and has a slightly two-tone cap and a silvery stem.
Ceratiomyxa fruticulosa  by Justin Warhurst Ceratiomyxa fruticulosa  by Justin Warhurst October 18th Ceratiomyxa fruticulosa (Coral Slime)

Justin Warhurst found this tiny and very pretty Myxomycete (Slime Mould) on rotting wood in Penn Wood. Quite a common species often to be seen in colonies on bare conifer stumps, it can be found on other fallen wood if sufficiently damp. Each fingerlike tendril is less than 5 mm high and photo 2 is of a more more developed colony. Slime Moulds are now known to belong to a Kingdom of their own but share some features with fungi and therefore are usually treated as honorary fungi, being recorded by mycologists.
Pseudoboletus parasiticus  by Penny Cullington October 18th Pseudoboletus parasiticus (Parasitic Bolete)

Boletes are now in short supply having fruited in abundance through September, but here is one still to look out for wherever you see the Common Earthball- Scleroderma citrinum. Penny C. found this collection under a patch of heather in Marlow Common - a site renowned for the occurrence of both the species involved here. This unusual bolete is only found emerging from the sides of this particular Earthball species which can be seen here collapsing inwards presumably as the parasitic fungus consumes it as it grows. (See also our earlier photo dated Sept 26.)
Psathyrella piluliformis  by Penny Cullington October 18th Psathyrella piluliformis (Common Stump Brittlestem)

We have an earlier example of this species (dated Sept 10) but of young material, and as there is much evidence of more mature clusters of this around at the moment, we are including it here again - found by Paul and Penny C. on a mossy deciduous stump in Marlow Common. Note the dark gills visible in the upturned fruit body, now coloured by the mature spores, also the veil flecks, visible on the cap in young material, have now been washed off leaving it smooth. This is one of our commonest Brittlestems and is usually to be found in large numbers on fallen rotting deciduous wood.
Mycena pura  by Penny Cullington Mycena pura  by Penny Cullington October 18th Mycena pura (Lilac Bonnet)

Emily Peace found just these three rather faded specimens of a normally common species of Bonnet in Hollowhill Wood (photo Penny C.). Closely related to the much more common M. rosea (Rosy Bonnet), there is often doubt about the difference between the two, especially as it's only in recent years that M. rosea has been split from M. pura, previously being just a variety of that species. Both favour Beech litter, but compare not just the colours but the shape of the two (see photo dated Oct 10 for M. rosea): the stem of M. rosea is notably narrowed at the top and wider at the base, also pale pink to white, but cylindrical in M. pura and with lilac tones as in the cap. Both will fade as they dry out, but when fresh M. pura has a distinctly lilac cap with a brownish tint; M. rosea is pure pink with no brown or lilac.
Laccaria proxima  by Penny Cullington Laccaria proxima  by Penny Cullington October 18th Laccaria proxima (Scurfy Deceiver)

Paul and Penny C. found a good number of this species looking really pristine in a grassy glade in Marlow Common. This is the largest species of the Deceivers and is like an outsize L. laccata (Deceiver) though confusingly that species can sometimes grow as large on occasion! The stem is much more fibrous and the gills a bit paler than those of L. laccata, also it favours more heathland than woodland litter, but there is really only one way to be certain which species you have and that is to check the spore shape: round in L. laccata but oval in L. proxima.
Crepidotus variabilis  by Penny Cullington Crepidotus variabilis  by Penny Cullington Crepidotus variabilis  by Penny Cullington October 18th Crepidotus variabilis (Variable Oysterling)

Penny C. found this little group on a dead bramble stem in Marlow Common. We have photos of two other common Crepidotus species so far, one of which (C. cesatii dated Oct 08) is very similar to today's and they can only be separated with certainty if the spores are checked - round in one and cylindrical in the other). This species can be found on dead twigs and various herbaceous stems as here and the caps are up to about 2 cms across. Note the lack of stem underneath and the shell-like shape with pinkish beige gills which reflect the spore colour of the genus. Do not confuse with the quite similar Panellus stipticus (dated Oct 03).

October 17th 2020

Amanita muscaria  by Greg Douglas October 17thAmanita muscaria (Fly Agaric)

We have a previous photo of this species - very common this year - dated Sept 12, but Greg Douglas found this fruit body with a perfectly marked cap on a lawn under Birch in Chesham which we thought was worth including. It shows that this eye-catching species is still about though many Amanitas are now over and becoming hard to find.

October 16th 2020

 Pluteus thomsonii by Justin Long  Pluteus thomsonii by Justin Long October 16th Pluteus thomsonii (Veined Shield)

Justin Long found this unusual species in a woodchip pile in Milton Keynes. This is a small species of Pluteus with caps no bigger than 3 cm across at most and usually smaller, but is unmistakable in the field due to its very distinct raised 'veins' on the cap surface. Note also the pale pink gills which are free of the stem - both features typical of the genus.
Simocybe sumptuosa  by Claudi Soler Simocybe sumptuosa  by Claudi Soler October 16th Simocybe sumptuosa (Velvet Twiglet)

Claudi Soler found this small singleton on rotting deciduous wood in Burnham Beeches. Superficially from above it looks similar to a small Pluteus but once you turn it over and notice that the gills are not free of the stem at the top, nor are they crowded or pink, you know you have something quite different, maybe a species of Psathyrella? A scope soon eliminates that genus too, so the inexperienced would now be struggling for the genus! Luckily, Claudi knew it might well be a Simocybe so checked the microscopic features to confirm which of the two likely species he had. It is an occasional species thought easily overlooked and caps can be up to 4 cm across but are usually smaller as was the case here.
Laccaria bicolor  by Paul Goby Laccaria bicolor  by Paul Goby October 16th Laccaria bicolor (Bicolored Deceiver)

Paul Goby found this quite rare species growing in litter in disturbed soil in Naphill Common. Very similar to the common Deceiver, this species sports the amethyst to mauve colours found in the Amethyst Deceiver but only at the stem base and apparently in the stem flesh (seen very clearly here). We have just one previous county record from Burnham Beeches, so this is new to the site and a nice find.
Cortinarius huronensis var. olivaceus  by Claudi Soler Cortinarius huronensis var. olivaceus  by Claudi Soler October 16th Cortinarius huronensis var. olivaceus (a Webcap with no common name)

Alison Peace found this very rare Webcap in mossy soil under Beech in Burnham Beeches (photos Claudi Soler). This is a member of the Dermocybe group of Webcaps with dry fibrous caps, and very similar to C. croceus which also has these stunning yellow colours in both cap and gills. In fact Penny C. assumed it was that species but luckily Claudi worked on it later and, suspecting it was something different, he tested the gills with the chemical KOH which promptly turned bright red. This reaction eliminated C. croceus and his determination was then confirmed by expert Geoffrey Kibby. So we have a species not only new to the site and to the county but also with no more than a handful of UK records.
Cantharellus tubaeformis  by Penny Cullington Cantharellus tubaeformis  by Barry Webb October 16th Cantharellus tubaeformis (Yellowlegs / Trumpet Chanterelle)

Alison Peace found this collection growing amongst bracken and litter under mixed deciduous trees in Burnham Beeches (photo Penny C.). Our first Chanterelle, this species is considered a late season fruiter (another name for it is Winter Chanterelle) and is much flimsier and thinner fleshed that a true Chanterelle. The yellow stem is hollow and the gills are typical of the genus being more like shallow folds and often seem to fork near the edge of the cap. Photo 2 was taken by Barry Webb at Burnham Beeches just four days earlier.
Entoloma rhodopolium  by Penny Cullington October 16th Entoloma rhodopolium (Wood Pinkgill)

Paul Cullington noticed a good number of this large Pinkgill fruiting in damp soil in Burnham Beeches (photo Penny C.). This species is relatively common and can get to a good size, caps here were 7 cms across and stems somewhat more than that high. This is a genus easy to recognise in the field because of its pink gills and sporeprint, but that's as far as the easy bit goes! This collection, because of its size and the habitat, was likely to be this species but still had to be checked with a scope to confirm.
Lactarius glyciosmus by Claudi Soler October 16th Lactarius glyciosmus (Coconut Milkcap)

Penny C. found this collection under Birch, its host tree, in Burnham Beeches, (photo Claudi Soler). In appearance it is much like many other small to medium sized Milkcaps but if you find one under Birch, it's worth smelling it because the clear sweet dessicated coconut smell is the best way to confirm its identity in the field.
Mycena inclinata  by Penny Cullington Mycena inclinata  by Penny Cullington October 16th Mycena inclinata (Clustered Bonnet)

Penny C. found this cluster on a rotting Oak trunk in Burnham Beeches. It is quite common and one of the larger species of the many wood inhabiting Bonnets and with experience is recognisable in the field. Features which distinguish it are the clustered habit (also found on Oak), the brownish caps with outer half striate (not markedly so in today's collection), the stems which typically are white at the top but become gradually darker through orange to reddish at the base, and the very distinctive strong smell described as spicy-rancid but for Penny of lupins!
Hebeloma mesophaeum  by Penny Cullington October 16th Hebeloma mesophaeum (Veiled Poisonpie)

Penny C. found this striking collection under Birch in Burnham Beeches. This is one of the commoner species of Poisonpie and when it has this very distinctive two-tone coloured cap it is easy to recognise, though it is often not as clear as in today's collection. With this genus one should always check for the radish smell which most species have and also use a scope to determine the species. It is considered one of the harder genera to identify and very few can safely be named in the field.
Hygrocybe conica  by Penny Cullington October 16th Hygrocybe conica (Blackening Waxcap)

Paul Cullington found this collection in longish grass at Burnham Beeches (photo Penny C.). We have this species already (dated Sept 09) but today's collection shows the typical conical shape and colours of the species with the blackening just beginning on the damaged stems. It's worth noting that the gills, white here, can be yellow or even red in some collections.
Tricholoma columbetta  by Penny Cullington October 16th Tricholoma columbetta (Blue Spot Knight)

Penny C. found this species under Birch at Burnham Beeches - yet another of the white capped Knights but this one lacks the unpleasant pervasive chemical smell of the trio previously discussed under T. album (dated Sept 26) and T. stiparophyllum (dated Oct 13). We have very few county records of today's species though this may be due to our lack of experience over its recognition: the bright white shiny silky rounded cap combined with the lack of a distinctive smell is the key feature, though in maturity it can develop blue green spots at the stem base (not always present, however). It occurs under various deciduous trees.
Lepiota cristata  by Penny Cullington October 16th Lepiota cristata (Stinking Dapperling)

Alison Peace found a nice collection of this common - yet scarce so far this season - Lepiota on a large rotting woodchip heap in Burnham Beeches (photo Penny C.) This particular heap has produced many interesting species over the years but today this was the sole representative. The caps were a good size, up to 4 cms across, and displayed the typical bright chestnut central area fading rapidly to white at the margin with some dotted scales in between. Gills are very crowded and free of the top of the stem, which has a ring when young but tends to lose it as it matures. Once familiar with its strong unpleasant rubbery smell it makes separation from other similar Lepiota species easier.
Tricholoma cingulatum  by Penny Cullington Tricholoma cingulatum  by Penny Cullington October 16th Tricholoma cingulatum (Girdled Knight)

Paul Cullington found good numbers of this species of Knight under Willow in Burnham Beeches (photo Penny C.). There are quite a few Knights having similar brownish grey caps but this particular species is unique amongst them because it has a ring on the stem - the only member of the genus to do so. So if you find a greyish Tricholoma under Willow (its only host) check for a ring. If it has one, job done!
Tricholoma sulphureum  by Penny Cullington October 16th Tricholoma sulphureum (Sulphur Knight)

Alison Peace found this wonderful collection under Beech in Burnham Beeches (photo Penny C.) Though caps and gills are sulphur yellow when young, caps tend to become slightly brownish with age though the gill colour is always striking, as is the pervasive smell of the species! In fact we could smell these without needing to put them near our noses! They reek of coal gas tar or for some of bad eggs - unmistakeable.
Chlorophyllum rhacodes  by Penny Cullington Chlorophyllum rhacodes  by Penny Cullington October 16th Chlorophyllum rhacodes (Shaggy Parasol)

Paul Cullington found this young collection in deciduous litter in Burnham Beeches (photo Penny C.) This common species is often confused with Macrolepiota procera (Parasol) unless you know what features to look for, then separating them becomes relatively easy. Scratch the stem (which is smooth and lacks the snakeskin brown markings found in the Parasol) and if fresh - as today's collection was - it will quickly (in a matter of seconds) turn orange. This colour change also happens if you break the cap flesh as can be seen here.
Arrhenia acerosa  by Paul Goby Arrhenia acerosa  by Paul Goby October 16th Arrhenia acerosa (Moss Oysterling)

Paul Goby spotted this unusual and infrequent species growing in moss in Naphill Common. The upper surface of this species appears almost Lichen-like and has a lobed rather downy margin. Turning it over reveals the beautiful paper thin fanlike gills and typically short eccentic (off-centre) stem - features which characterise the species. We have just a handful of records in the county, one of which is from this site a few years back.
Lepista nuda  by Sarah Ebdon October 16th Lepista nuda (Wood Blewit)

Sarah Ebdon found this collection in litter in Naphill Common. An attractive species which is often considered a late season fruiter, caps are smooth and when young often show the violet colour seen here only in the gills but gradually change to soft brown. The gills also tend to lose this beautiful colour with age and stems have no ring and tend to be clavate with pale violet flesh within. Some species of Cortinarius which also have violet gills might be confused with this species but if in doubt, take a spore print. Cortinarius spores are bright rusty brown but Lepista spores are pale pinkish cream.

October 14th 2020

Tricholoma saponaceum  by Richard Fortey October 14th Tricholoma saponaceum (Soapy Knight)

Richard Fortey found this quite common Knight in Gussetts Wood under Beech. It is one of the many Knights having a grey cap but the only one having a smell of unperfumed soap. It is very variable in appearance, with basically greyish caps but with tones of green or olive, also often with a paler margin as seen here. The cap and stem surface can be either smooth or finely scaly as also seen here.
Stropharia caerulea  by Penny Cullington Stropharia caerulea  by Penny Cullington October 14th Stropharia caerulea (Blue Roundhead)

We do have a singleton of this species already (dated Sept 30), but this was such a stunning collection, found by Penny Cullington in Kings Wood, that it deserves an entry of its own. Found in both grassy habitats and woodland litter, when in pristine condition as here it is one of the most eye-catching and attractive mushrooms. The largest cap, just beginning to fade, was about 4 cms across. The gills, at first pale beige, end up considerably darker as in the left hand upturned fruitbody, and the coarse white fluffy edge is often soon lost in rain. The stem is also white fluffy below the ring zone but smooth above this (seen in photo 2).
Mycena speirea  by Penny Cullington Mycena speirea  by Penny Cullington Mycena speirea  by Penny Cullington October 14th Mycena speirea (Bark Bonnet)

Penny found this small Bonnet fruiting on Beech bark in Kings Wood. Caps are less than 1 cm across and their rounded slightly fluted shape is typical, also the pale yellowish brown colour with a dark dot in the slightly sunken centre. Also note that the gills are slightly decurrent (sloping). A common species on bark of several trees but often on Beech.
Gymnopus brassicolens by Penny Cullington October 14th Gymnopus brassicolens (Cabbage Parachute)

The smell of this small species packs a punch! Previously in the genus Micromphale (and possibly about to move to Marasmiellus) it was found by Penny Cullington in Beech litter in Kings Wood. Caps are only about 2 cms across but are bright red brown with a pale rather frilly rim; gills are crowded but shallow; the stem is dark red to black and almost woody. Put it to your nose for a whiff of overcooked school cabbage mixed with garlic - unmistakable.
Inocybe erinaceomorpha  by Penny Cullington October 14th Inocybe erinaceomorpha (a Fibrecap with no common name)

Kings Wood provided the first records of this rare Fibrecap for over 50 years when Penny Cullington discovered it here a few years ago when a boy from a school party she was taking round handed it to her. Since then it has appeared here fairly frequently but in very few other places in the country. For a Fibrecap it is quite an easy one to recognise, having two redeeming features: a cap with the large dark brown scales on a beige background, and a distinctive and pervasive smell of peardrops!
Singerocybe (previously Clitocybe) phaeophthalma  by Penny Cullington October 14th Singerocybe (previously Clitocybe) phaeophthalma (Chicken Run Funnel)

Yet another genus name change to get used to here: this relatively common species of Funnel was fruiting in good numbers in Beech litter in Kings Wood, found by Penny Cullington. There are quite a few very similar pale to whitish medium sized Funnels which are not easy to name to species even with a scope. Smell can play an important role, however, and this species is one which has a very distinctive smell said to be of wet feathers - hence its common name. If you're finding it hard to imagine that smell, think of a wet dog in the back of a car - that ticks the box nicely!
Clavariadelphus pistillaris  by Penny Cullington October 14th Clavariadelphus pistillaris (Giant Club)

Penny Cullington was pleased to find this quite rare species just emerging in Beech litter in Kings Wood. Just a singleton, it was about 8 cms tall x 4 cms across but can get to upwards of 15 cms, and can't really be mistaken for anything else. Thought to be an indicator species of ancient woodland but also possibly declining in Britain, it was nice to find it still fruiting here.
Leucocybe connata – previously Lyophyllum connatum  by Penny Cullington Leucocybe connata – previously Lyophyllum connatum  by Penny Cullington October 14th Leucocybe connata - previously Lyophyllum connatum (White Domecap)

Penny Cullington recalled finding this species in exactly the same spot last year, on a grassy bank near the car park in Kings Wood. Similar to a Tricholoma but lacking the unpleasant smell typical of the white species therein, this species can get to about 10 cms across and often causes difficulty because it doesn't turn up that often, though is not rare. One trick to confirm the identity in the field: if you rub a crystal of Ferrous Sulphate on the any part of the fruit body it will turn violet (though this may take 30 minutes or so). It has a smell difficult to put one's finger on: for some of fresh peas, for other of bitter almonds!
Clavulina coralloides  by Penny Cullington Clavulina coralloides  by Penny Cullington October 14th Clavulina coralloides (Crested coral)

This attractive species was found in Beech litter in Kings Wood by Penny Cullington. Previously C. cristata, it is very common in our Beech woods though easy to confuse with the equally common and very similar C. cinerea (see photo dated Oct 12). Today's species is pure white when fresh and the forking tips are acute. See notes re C. cinerea for more comparison etc.
Melanoleuca polioleuca  by Penny Cullington Melanoleuca polioleuca  by Penny Cullington October 14th Melanoleuca polioleuca (Common Cavalier)

Penny Cullington found these two fruit bodies in Beech litter in Kings Wood. Another common brown capped mushroom of woodland litter, this species has been slow to appear this season and is one which takes time to recognise when you're first learning about fungi. The genus is not the most eye-catching with caps (sometimes up to 10 cms across or more) some shade of brown and smooth to shiny. They usually have a broad swelling in the centre and the gills are off white and very crowded (both features seen here). This particular species is very common and if you split the stem it has dark flesh at the base (see photo 3). It's a genus which often needs work with a scope to determine to species.

October 13th 2020

Coprinellus micaceus  by Paul Goby October 13th Coprinellus micaceus (Glistening Inkcap)

We have a photo of this species dated Sept 11th, but this young collection found by Paul Goby in woody litter in Naphill Common is such a good example of the species that it's worth including again. Here one can see the reason for the 'glistening' effect referred to in the common name, caused by the tiny flecks of veil - like icing sugar - which coat the cap surface when young and fresh. However, they tend to disappear later which makes identity in the field more problematic as there are other very similar Inkcaps with which the species can then be confused.
Rhodocollybia butyracea  by Penny Cullington October 13th Rhodocollybia butyracea (Butter Cap)

Previously in the genus Collybia, this species is normally considered a late season fruiter so its appearance at Pulpit Hill in Conifer litter today , found by Penny Cullington, could indicate that our fruiting season is winding down already? This is a deceptive species and often causes confusion over its identity in the field because the cap colour is extremely variable, from dark reddish brown when fresh and moist to almost white when drier. The stem is often a useful pointer, however, and is hollow (pinch it to feel this) and typically tapers upwards with a darker lower part which tends to have a purple hue. The young specimens at the bottom show this nicely. The common name arises from the very greasy feel to the cap surface if you stroke it, but be aware that when really dry this will be far less obvious!
Marasmius bulliardii  by Penny Cullington Marasmius bulliardii  by Penny Cullington October 13th Marasmius bulliardii (a Parachute with no common name)

This cluster of tiny little mushrooms was found by Penny Cullington at Pulpit Hill growing on a fallen Beech leaf. The species is almost identical to M. rotula (see photos dated Oct 01) but is only half the size, so caps are no more than 5 mm across at most. It has the same distinct cogwheel around the stem to which the gills are attached (these are the only two species with this feature), seen in photo 2, and apart from that feature is recognisable in the field because of its tiny size, the fluted cap with sunken dark dot in the centre and its occurrence on fallen leaves, most commonly Beech. It is not uncommon but seldom recorded for obvious reasons.
Geastrum fimbreatum  by Penny Cullington Geastrum fimbreatum  by Penny Cullington October 13th Geastrum fimbreatum (Sessile Earthstar)

Penny and Paul Cullington found good numbers of these enchanting little Earthstars under mixed conifer and deciduous trees at Pulpit Hill. The largest fruit body, upturned at the top left in photo 1 to show the underside, was only about 3.5 cms across, so this delicate species is considerably smaller than the common G. triplex (see also photos dated Oct 04 & Sept 03). We then came across both these two species growing together so took the opportunity to compare them side by side, photo 2, with G. triplex above and G. fimbreatum below. Note the collar in one G. triplex but absent an another, also the collarless and white fruit bodies typical of G. fimbreatum.
Tricholoma stiparophyllum   by Penny Cullington October 13th Tricholoma stiparophyllum (Chemical Knight)

Penny Cullington found this collection under Birch at Pulpit Hill. There are three extremely similar white capped Knights which are very easy to get confused, all of which have an unpleasant pervasive smell especially if contained in a pot. To separate them one needs to note what tree your collection is growing under. T. album grows only under Oak, today's species T. stiparophyllum grows only under Birch, and T. lascivum grows only under Beech, The problem arises when a collection is found with mixed trees nearby, in this case it's probably safer to be content to call it one of the smelly white Knights and leave it at that!
Mucidula mucida by Penny Cullington Mucidula mucida by Penny Cullington October 13th Mucidula mucida (Porcelain Fungus)

We already have nice examples of this dated Sept 13, but here we have photos of the very early 'button' stage of the fungus (on fallen Beech at Gussetts Wood, Penny Cullington) and of developing young fruit bodies (Captain's Wood, Greg Douglas). It's not always easy to identify fungi when they're at a different stage from the examples given in the literature, thus their inclusion here.

October 12th 2020

Arcyria denudata by Barry Webb October 12th Arcyria denudata (a Slime Mould with no common name)

This stunning photo was taken by Barry Webb of a collection on fallen Beech in Burnham Beeches. Like most Slime Moulds, this species starts out as a cluster of slimy white blobs (the plasmodium stage) when identification even to genus is not possible. As it matures it dries off and forms these remarkable miniature 'loofahs' on shiny red stalks, the whole being 6 mms high at most! There are quite a few species of Arcyria, some rare, some common as is this one, but none are quite so eye-catching. Note how the stalk develops into a cup which supports the spore mass column, seen here in various stages of maturity.
Clavulina cinerea with Helminthosphaeria clavariarum by Penny Cullington October 12th Clavulina cinerea with Helminthosphaeria clavariarum (Grey Coral with its parasitic fungal infection)

This clump was found by Penny Cullington in soil in Gussetts Wood. Often confused with the very similar and equally common C. coralloides (Crested Coral) - yet to be added to our list, it is not as white as that species and has a lavender-greyish hue, also the dividing tips are blunter and not as finely crested. It is very commonly found infected by the dark grey fungus seen here on the lower part of the LH cluster, as to a lesser extent is C. coralloides. Both species could be confused with the somewhat similar genus Ramaria see photos dated Sept 13 & 24) which forms larger more upright regular clusters with narrower individual limbs.
Amanita vaginata  by Penny Cullington Amanita vaginata  by Penny Cullington October 12th Amanita vaginata (Grisette)

Paul Cullington found this young and quite unusual Amanita under Beech in Gussetts Wood (photo Penny Cullington). Closely related to the much more common Amanita fulva (see photo dated Sept 15) and rarer Amanita crocea (see photo dated Sept 18), this is one of the Amanitas which lacks a ring on the stem and has a thin fragile membranous volva. Note also the clear striations on the edge of the cap already clearly developed here. It tends to be larger than A. fulva but the diagnostic feature is the grey cap colour despite the top of the volva showing the same fulvous brown tints as that species and visible here having been left on the edge of the cap in photo 1 and on the stem in photo 2.
Pluteus phlebophorus  by Penny Cullington Pluteus phlebophorus  by Penny Cullington Pluteus phlebophorus  by Penny Cullington October 12th Pluteus phlebophorus (Wrinkled Shield)

This genus has been poorly represented so far this season, but today Penny Cullington found a couple of separate fruit bodies on fallen Beech in Gussetts Wood. One of the smaller Shields, this occasional species has an uneven wrinkled veinlike surface (hence its Latin species name) but this is a genus which should always be keyed out with care using a scope to view not just the gill cells and spores but also the cap surface. There are quite a few very similar small species with which it could be confused. Note the free gills shown in photo 2 and the wrinkled cap surface shown in photo 3.
Hydnum repandum  by Penny Cullington Hydnum repandum  by Penny Cullington October 12th Hydnum repandum (Wood Hedgehog)

We have this species already on our list but just a singleton (dated Sept 06), so this nice collection is worth including again, found in Beech litter in Gussetts Wood by Paul Cullington. The caps were a good size, about 10 cms across, and though quite clearly darker than our previous specimen, still not dark or orange enough for the very similar H. rufescens.
Inocybe petiginosa  by Penny Cullington October 12th Inocybe petiginosa (Scurfy Fibrecap)

Penny Cullington found this tiny Fibrecap under Beech in Gussetts Wood. One of the very smallest Fibrecaps, this definitely qualifies as an LBJ (little brown job) and is not typical of the genus having rather creamy yellowish gills and a roughened cap surface, the caps often less than 1.5 cms across and with a paler band around the edge. It is not until one sees the nobbly spores and very distinctive gill cells under a scope that the genus becomes clear.
Inocybe asterospora  by Penny Cullington October 12th Inocybe asterospora (Star Fibrecap)

This species was fruiting in large numbers under Beech in Gussetts Wood, found by Penny and Paul Cullington. It is one of the commoner and larger Fibrecaps and in fact recognisable in the field if you note the bright brown streaky fibrous caps, the beige gills and stems - concolorous with the cap - which have a distinct whitish bulb at the base. The LH fruit body here has the typical abruptly downturned margin often seen in the species. Nevertheless, one should always check for the amazing star-shaped spores to confirm your identification.
Lactifluus piperatus  by Penny Cullington Lactifluus piperatus  by Penny Cullington October 12th Lactifluus piperatus (Peppery Milkcap)

Only recently separated from the genus Lactarius, this species was found under Beech in Gussetts Wood by Penny Cullington. The five Lactifluus species are all very solid compared to most Milkcaps, in fact are very similar to the solid Brittlegills such as R. chloroides or R. delica. In fact you can't be sure in the field which genus you have till you damage the gills to test for milk. Today's species is the commonest of this group and has very crowded gills, a velvety cap surface and the milk is fiery hot to taste.
Lactarius azonites  by Penny Cullington Lactarius azonites  by Penny Cullington Lactarius azonites  by Penny Cullington October 12th Lactarius azonites (a Milkcap with no common name)

Penny and Paul Cullington came across several fruit bodies of this unusual Milkcap under Oak and Beech in Gussetts Wood. Notable for its rather peachy orange gills, the milk as it dries turns pink, as does the stem flesh where damaged, though this takes 15 minutes or more so a fruit body needs to be contained and and an eye kept on it. (Photo 3 shows the dried pink milk on the gills and stem.) There are several Milkcaps which have milk which turns pink in this way and care is needed to tell them apart; it's best to check the spores ornamentation to confirm the determination . This particular species favour Oak which was present nearby today.
Phlebia radiata  by Penny Cullington Phlebia radiata  by Penny Cullington October 12th Phlebia radiata (Wrinkled Crust)

Penny Cullington found this large brightly coloured patch on a fallen Beech trunk in Gussetts Wood. This is a common fungus growing resupinate (flat) over bare wood and bark of Beech and other deciduous trees. When young (photo1) it is gelatinous and rubbery but becomes hardened and crusty as it matures (photo 2).
Chlorociboria aeruginascens  by Audrey McDade October 12th Chlorociboria aeruginascens (Green Elfcup)

This stunning collection of cups was found by Audrey McDade in Hodgemoor Woods on a rotting deciduous stick. This is quite a common Ascomycete but always a delight to find, each cup being less than 5 mm across. Once the cups have disintegrated having spread their spores, this same turquoise green colour can be seen colouring the wood thought its mycelium within, and it is this coloured wood which provided the green inlay used in antique furniture called Tunbridgeware.

October 11th 2020

Tremella foliacea by Justin Warhurst October 11th Tremella foliacea (Leafy Brain)

Justin Warhurst found this jelly fungus on wood in Penn Wood. Though not visible here, this would have been growing on another wood inhabiting fungus, probably the common Stereum hirsutum, which it is now known to parasitise. It is quite common and can get to about 10 cms and when young and much smaller could be possibly be confused with the Ascomycete Neobulgaria pura.
Dacrymyces stillatus  by Jackie McKenzie Dodds October 11th Dacrymyces stillatus (Common Jellydisc)

Jackie McKenzie Dodds noticed these tiny orange blobs on bare wood in Penn Wood. This is a very common species of jelly fungus and despite having the word 'disc' in the common name it is not an Ascomycete. It occurs on any wood which is sufficiently rotting and damp: sawn timber as well as fallen bare wood.
Fistulina hepatica  by Penny Cullington October 11th Fistulina hepatica (Beefsteak Fungus)

This magnificent specimen was growing on Oak roots at Pullingshill Wood, found by Penny Cullington. Though we already have good photos of the species (dated Sept 12th), the recent rain had made today's example almost as macabre as it gets and it certainly deserves a place in our list in its own right! It was about 1 ft across and if you hadn't known such a fungal species existed you'd probably have thought some poor creature had come to a very sticky end! No explanation is needed as to why it was given its apt common name.
Psathyrella bipellis  by Penny Cullington October 11th Psathyrella bipellis (a Brittlestem with no common name)

Penny Cullington was delighted to see this attractive and relatively rare Brittlegill in Beech litter in Pullingshill Wood - a new site for it. Brittlegills are generally not the most appealing or beautiful species but this one is definitely the exception and also recognisable in the field once you get to know it. The rich purple brown cap colour is striking and unusual not just within the genus but generally amongst mushrooms, though it is markedly hygrophanous (fades as it dries out), seen here in the higher of the two caps and leaving in this particular case rather a bizarre two-tone effect. The species also has peculiar smell said to be of peppermint or unpleasant like urine!
Stropharia ( / Leratiomyces) squamosa by Penny Cullington Stropharia ( / Leratiomyces) squamosa by Penny Cullington Stropharia ( / Leratiomyces) squamosa by Penny Cullington October 11th Stropharia ( / Leratiomyces) squamosa (Slender Roundhead)

This species was found in two different locations in Beech litter in Pullingshill Wood by Penny Cullington. Not common but occasional, the rather nondescript cap colour of the species is possibly the least interesting aspect of the fungus, but note the white flecks of veil on the outer cap and the tall stem in proportion to the cap size (which is no more than 3 to 4 cm across) The stem has a ring which gradually becomes black as the dark spores drop onto it, and below this there are belts of flocculose white veil (seen best in the larger specimen in Photo 2) and at the stem base it becomes orange with fine mycelial hairs (seen in Photo 3).
Bulgaria inquinans  by Penny Cullington Bulgaria inquinans  by Penny Cullington October 11th Bulgaria inquinans (Bachelor's Buttons / Black Bulgar)

This quite common Ascomycete was fruiting in good numbers on fallen Oak in Pullingshill Wood, found by Penny Cullington. Photo 1 shows young fruit bodies, not yet fully expanded, often with a reddish tinge and with the rough outer surface visible. Photo 2 shows mature black fruit bodies which are more or less flat discs with a short stem. This species is easily confused with a species of Exidea, also black and quite gelatinous (though not an Ascomycete). To check you have today's species, rub your finger over the black surface and it will be stained black by the spores. If it doesn't do so then you have something different!
Stereum gausapatum  by Penny Cullington Stereum gausapatum  by Penny Cullington Stereum gausapatum  by Penny Cullington October 11th Stereum gausapatum (Bleeding Oak Crust)

This fine colony of Stereum was fruiting on standing Oak in Pullingshill Wood, found by Penny Cullington. The white rim and dark ochre bumpy centre is characteristic and it tends to grow resupinate (flat) rather than forming brackets like S. hirsutum. This is the rarest of the three resupinate Stereum species (which all turn red when damaged) and is only found on Oak, so if you find a similar species on conifer it will be S. sanguinolentum and on some other deciduous tree it will be S. rugosum.
Thelephora terrestris  by Penny Cullington October 11th Thelephora terrestris (Earthfan)

This unusual but not uncommon species was found by Penny Cullington in Pullingshill Wood in woody conifer litter. It tends to occur in heathland or sandy soils with conifer, so it was a bit of a surprise to come across it in typical Chiltern Beech woodland though it was in an area with Larch. The fan in the far right bottom corner of the photo shows the underside which is almost whitish and each piece of fan was about 2-3 cms across.
Psilocybe semilanceata  by Penny Cullington Psilocybe semilanceata  by Penny Cullington October 11th Psilocybe semilanceata (Magic Mushroom / Liberty Cap)

Penny Cullington came across just two specimens of this little mushroom with a big reputation (!) in grass at a site somewhere in the county! This species contains Psilocybin and is now designated as a Class A drug with serious penalties in place for its possession. Recognised by its distinctive acutely conical cap shape with a 'nipple' on the top, it is not uncommon in grassland habitats along with many other quite similar LBJs (Little Brown Jobs). Note the very dark gills and smooth rusty brown stem.
Lycoperdon nigrescens  by Penny Cullington Lycoperdon nigrescens  by Penny Cullington October 11th Lycoperdon nigrescens (Dusky Puffball)

This common species, found today by Penny Cullington at Cadmore End, completes our full house of the woodland Puffballs (see the species list for details). Generally darker than the other three species, it is brown from the start, ending up almost black and is covered in dark brown pyramidal 'warts' which when they are rubbed off leave a distinct meshlike pattern on the skin beneath. Compare with the almost white 'warts' found on L. perlatum which leave a much less distinct pattern when removed. The much longer spines of L. echinatum are much more densely packed together.

October 10th 2020

Neobulgaria pura  by Paul Goby Neobulgaria pura  by Penny Cullington October 10th Neobulgaria pura (Beech Jellydisc)

This Ascomycete is usually very common on fallen Beech but seems to have only just started fruiting, found here by Paul Goby in Naphill Common (photo 1)and a couple of days later by Penny Cullington in Gussetts Wood (photo 2). Possibly confusable with Ascocoryne sarcoides (see photo dated Oct 06) and often found on the same Beech trunks, today's species is both paler and larger than the Ascocoryne and form more obvious clustered discs which can get to around 4 cm across.
Galerina subclavata by Penny Cullington Galerina subclavata by Penny Cullington October 10th Galerina subclavata (a species of Bell)

Penny Cullington only took a photo of this species to show an example of the genus, a typical LBJ (little brown job) and extremely similar to Conocybe (and Pholiotina - see photo dated Oct 08). Like a rusty smallish Mycena (Bonnet) and with rusty gills, not white as in Bonnets, the Bells tend to be very fragile with translucent slightly fluted caps and apart from one or two, they cannot be named to species without using a scope. They occur in many different habitats including grassland, on wood, in litter and most mycologists will recognise the genus and leave it at that. Today's species, just by chance, is not often recorded and we have just two previous county records. It was on the same mossy woodchip pile as our Pholiotina, dated Oct 08, in Turville Heath.
Entoloma sericeum by Penny Cullington October 10th Entoloma sericeum (Silky Pinkgill)

Penny Cullington found this collection in grass at Fawley churchyard. There are many species of Pinkgill and they are found in a varied range of habitats; though it is quite easy to recognise the genus, naming to species is quite another matter! In the field one can spot the pink brown gills of the genus - similar in colour to those of Pluteus also - and with a scope the spores are very distinctively and uniquely angular. Today's species is one of the most common to inhabit grassland and the shiny silky brown flat caps up to 3cm across are typical. It was still necessary to check the spores and other features because there are many other brown capped Pinkgills.
Bolbitius reticulatus  by Penny Cullington Bolbitius reticulatus  by Penny Cullington October 10th Bolbitius reticulatus (Netted Fieldcap)

When Penny Cullington saw this small mushroom on a rotting Beech pile in Gussetts Wood she thought it was a species of Pluteus (Shield). The gills were free (unattached to the top of the stem) as they should be for this genus but seemed to be too rusty brown rather than pink. At home the spores were entirely the wrong colour and shape for Pluteus, so it was back to the drawing board with a lengthy key to genera to wade through. The sticky cap was a useful clue and eventually all features, including microscopic, fitted into place. Not really rare but with few county records, this was a new species to Penny.
Hygrophorus eburneus  by Penny Cullington Hygrophorus eburneus  by Penny Cullington October 10th Hygrophorus eburneus (Ivory Woodwax)

Penny Cullington came across good numbers of this quite unusual species in Beech litter in Gussets Wood. You know you have one of the white Woodwax species as soon as you try and pick one: they are so slimy, both caps and stems, that it can be hard to hang on to them, especially after rain as today. There are several almost identical white species and one needs to notice under which tree they are growing and then test them later with a drop of KOH. Today's species grows under Beech and KOH on the cap has no effect at all but the stem base turns bright rusty orange (see photo 2). Hopefully we'll be able to demonstrate KOH on other Woodwax species when available.
Postia caesia  by Penny Cullington Postia caesia  by Penny Cullington October 10th Postia caesia (Conifer Blueing Bracket)

On the edge of a Spruce plantation in Gussetts Wood Penny Cullington found this bracket on a fallen trunk. The genus Postia forms soft quite small thick brackets on fallen wood; they have very small pores and are either white to cream or have a tinge of blue. Some only grow on conifer, some only on deciduous wood, so it's important to notice the host tree for identification. Today's species is an easy one to name with its distinctive blue edge and occurrence on conifer.
Mycena rosea with Mycena pelianthina  by Penny Cullington Mycena rosea with Mycena pelianthina  by Penny Cullington Mycena rosea with Mycena pelianthina  by Penny Cullington October 10th Mycena rosea with Mycena pelianthina (Rosy Bonnet with Black Edge Bonnet)

Penny Cullington took the opportunity to make a comparison between these two Bonnets growing together in Beech litter in Gussetts Wood. They are closely related, are roughly the same size with caps up to 3 or 4 cms across, have the same distinctive smell of radish and are equally common in Beech litter. On the right: four specimens of Rosy Bonnet (note the white gills and stem which contrast with the rosy cap); on the left: two specimens of Black Edge Bonnet (note the much more non-descript cap colour and dark edged gills). (We have an earlier photo of this dated Sept 11.) Photo 3 is of a pristine collection of M. rosea found two days later at Pulpit Hill. There is a third similar species, Mycena pura, which we hope to be able to illustrate soon.
Mycena arcangeliana  by Penny Cullington Mycena arcangeliana  by Penny Cullington Mycena arcangeliana  by Penny Cullington October 10th Mycena arcangeliana (Angel's Bonnet)

This colony of Bonnets was fruiting on a fallen Beech trunk in Gussetts Wood, found by Penny Cullington. One of our commonest wood-inhabiting Bonnets, it tends to form troops, as here, and caps rarely gets much bigger than 2 cm across. The shape, colour and visible striations on very young fruit bodies is typical, as in photo 1; the white gills of the genus and and olive brown tinge to the caps seen in photo 2 is also typical, making this species recognisable (with experience) without recourse to a scope, especially if you place a few specimens in a small container where the smell of iodoform develops as they dry out.
Sarah Ebdon by Sarah Ebdon Sarah Ebdon by Sarah Ebdon October 10th Pholiota squarrosa (Shaggy Scalycap)

This impressive cluster was found by Sarah Ebdon in North Dean, Hughenden Valley, at the base of an unidentified deciduous tree. This is probably the commonest Scalycap and grows with various different tree species. Compared with our Pholiota dated Oct 01 and 06, this species has coarse brown raised scales on its dry cap and stem; note also in the second photo the membranous ring forming as the young cap starts to expand.
Daldinia concentrica  by Sarah Ebdon Daldinia concentrica  by Sarah Ebdon Daldinia concentrica  by Sarah Ebdon October 10th Daldinia concentrica (King Alfred's Cakes)

This very common Ascomycete has been conspicuous by its absence so far this season and was found by Sarah Ebdon in North Dean, Hughenden Valley on felled Ash. This is young fresh material thus its rather pale appearance with pruinose 'bloom'; once this is lost it eventually turns from cocoa brown to black (like burnt cakes!) Sarah broke one open to see the telltale concentric rings within which are a diagnostic feature of the genus, of which this is the only common species and nearly always found on Ash.
Macrotyphula fistolosa  by Sarah Ebdon October 10th Macrotyphula fistolosa (Pipe Club)

Having been alerted to the presence of this fungus next to her Stinkhorn in Naphill Common on Oct 8th, Sarah Ebdon returned for the photo shown here. These unusual-looking fungi can get to 30 cm high and can be solitary as here or gregarious. They favour Beech litter and are quite common though easily missed!

October 8th 2020

Psathyrella pseudogracilis  by Tony Knight October 8th Psathyrella pseudogracilis (a species of Brittlestem)

Tony Knight found a patch of around 200 fruit bodies of this unusual species in grass near Chilton. Superficially similar to many other Brittlestems (see also Conical Brittlestem dated Oct 07 and Red Edge Brittlestem dated Oct 01) this species has distinctive cells on the gill - found by Tony - which confirm the identification. The sparse number of records for it probably reflects the reluctance of many mycologists to work on this tricky genus rather than its rarity.
Phallus impudicus by Sarah Ebdon Phallus impudicus by Sarah Ebdon October 8th Phallus impudicus (Stinkhorn)

Sarah Ebdon found this perfect specimen in woody litter in Naphill Common. Note the remains of the egg-like sac still at the base, from which the stem is still emerging. Note also the slimy olive greeny brown top which has a (to us) disgusting smell with which to attract insects of many kinds. The insects then consume this part and in doing so spread the spores for the fungus. The sharp eyed amongst you will notice the insect doing just this to the right of the top. The even sharper eyed amongst you might be able to pick out another completely different fungus (which Sarah wasn't aware of) in the photo! So I’ve enlarged the rather blurred but clearly recognisable shape of Macrotyphula fistulosa (Pipe Club) which is off to the left off the Stinkhorn.
Pholiotina rugosa  by Penny Cullington Pholiotina rugosa  by Penny Cullington October 8th Pholiotina rugosa (a species of ringed Conecap)

Penny Cullington found this collection on a rotting woodchip pile at Turville Heath. The large genus of Conocybe (Conecap) is a typical LBJ genus (Little Brown Jobs) mostly having shiny conical bright brown caps under 2 cms across. A few of them have a ringed stem (as our species today) and have recently been split off to form the genus Pholiotina. Superficially similar to Tubaria furfuracea (dated Oct 03) amongst other LBJs, the ring immediately alerts one to the fact that it must belong in Pholiotina, then it's a question if doing the microscopy and following a key to determine which species you have.
Inocybe sindonia  by Penny Cullington October 8th Inocybe sindonia (Beige Fibrecap)

This collection was found under Lime at Turville Heath by Penny Cullington. Despite its common name, there are quite a few Fibrecaps with similar coloured caps, so even the experienced mycologist should always check with a scope before naming any Inocybe with certainty. It is included here as an example of a pale capped Fibrecap to be compared with our four other species (so far on the list) which have either different coloured caps or if similar then different textures caps.
Nectria cinnabarina  by Penny Cullington October 8th Nectria cinnabarina (Coral Spot)

This is one of the easiest Ascomycetes to recognise, found by Penny Cullington at Turville Heath on various deciduous sticks. Seen here are two stages of development: first the pale smooth-topped conidia stage, followed by the final darker reddish stage which produces the spores. Each blob is less than 5mm across. Very common on wood piles and sticks, particularly on Beech and Sycamore.
Crepidotus cesatii  by Penny Cullington Crepidotus cesatii  by Penny Cullington October 8th Crepidotus cesatii (Roundspored Oysterling)

This small species was found on a Beech stick at Turville Heath by Penny Cullington. The largest cap (on the left) was about 1.5 cm across - an average size for the species which is superficially almost identical to several others and cannot be identified with certainty without checking the spores. The genus is common on twigs, herbaceous stems, woody debris and easy to recognise by the white shell-shaped caps with pinkish to rusty gills and virtually no stem to speak of.
Coprinellus hiascens  by Penny Cullington October 8th Coprinellus hiascens (an Inkcap with no common name)

Penny Cullington found this collection growing in rotting grassy litter at Turville Heath. There are many Inkcaps which look very similar to this species, therefore a scope is always necessary to confirm the identification (in fact Penny thought this was probably a different species till the spores and cells on the cap were checked at home later). It is included here as an example of this type of Inkcap.

October 7th 2020

Parasola conopilea  by Penny Cullington Parasola conopilea  by Penny Cullington October 7th Parasola conopilea (Conical Brittlestem)

Well camouflaged in the Beech litter at Benhams, a private garden near Fawley, was this species (found by Penny Cullington) which has recently moved from the genus Psathyrella, hence its common name of Brittlestem. Sometimes found in sheets on the woodland floor, the tall stems and conical caps are distinctive. One should always turn a cap over to check that it has suitable dark gills and is not, for instance a species of Mycena for which it could possibly be mistaken.
Scleroderma areolatum  by Penny Cullington Scleroderma areolatum  by Penny Cullington October 7th Scleroderma areolatum (Leopard Earthball)

This collection of Earthballs was found by Penny Cullington in soil near Oak in Benhams, a private garden near Fawley. Our fourth Earthball species, not as common as S. citrinum or S. verrucosum, this species has a shorter stem than the very similar S. verrucosum and has a more regular patterned surface reminiscent of a leopard's markings, though the safest way to split the two species is to compare the spore size and ornamentation (not done today because both Penny and Richard Fortey felt confident in the field). Mycologists often disagree over splitting these two just from sight, however, so the determination here is not 100%.
Meripilus giganteus  by Penny Cullington Meripilus giganteus  by Penny Cullington Meripilus giganteus  by Penny Cullington October 7th Meripilus giganteus (Giant Polypore)

Surely the largest fungal species in the country, this spread of tiers (more than 2 ft across so relatively small for the species) was at the base of an old Beech stump in Benhams, a private garden near Fawley, found by Penny Cullington. Note the pale cream fine pores of the underside visible in photo 2 which after an hour or so had started to turn dirty brown (see photo 3) and would eventually turn black. This colour change to the bruised pores is diagnostic of the species though there can be little doubt over identity once it has grown to this sort of size. However, when young and small the blackening can be useful to separate it from Grifola frondosa (see photo dated Sept 26) for which it could be mistaken. It is common and often on or around Beech.
Coprinopsis picacea  by Sarah Ebdon Coprinopsis picacea  by Sarah Ebdon October 7th Coprinopsis picacea (Magpie Inkcap)

We do already have an example of this species (dated Sept 15) but Sarah Ebdon's two specimens found in Bradenham Wood are worth including here. See comments on the previous find for more, but note here the tall stem and how the cap edges are curling up to reveal the gills beginning to deliquesce. By the next day there would be nothing remaining except possibly the stem and a black smelly puddle beneath!
Mycena crocata  by Sarah Ebdon Mycena crocata  by Sarah Ebdon Mycena crocata  by Penny Cullington October 7th Mycena crocata (Saffrondrop Bonnet)

This particular Bonnet, common in the Chiltern Beech woods, has been hardly seen this season until found here in Bradenham Wood by Sarah Ebdon. It is only found on wood or woody remains of fallen Beech and in other parts of the country is considered rare. If, however, one were to chose a fungus to represent the Chilterns, this would certainly be a contender! Caps can be white, as here, or some shade of brown, even almost black (see photo 3 taken three days later, Penny Cullington), but the telltale feature is the amazingly prolific orange 'juice' which exudes when any part of the fruit body is damaged. Once collected, the stem base often drips with it but also the flesh within bleeds making even the cap and gills tainted as seen in Sarah's excellent photos. Do not confuse with M. haematopus (see photo dated Sept 07) which also grows on fallen branches but has much darker wine red juice.
Clavaria fumosa  by Sarah Ebdon October 7th Clavaria fumosa (Smokey Spindles)

Sarah Ebdon found this quite rare grassland fungus in Bradenham Churchyard. We have just two other known sites in the county for this species; it is similar to several other yellow spindles and clubs, but its colour quickly separates it though it seems to vary, ranging from mouse grey to cream or with a pink tinge as here.
Dermoloma cuneifolium  by Penny Cullington October 7th Dermoloma cuneifolium (Crazed Cap)

Also on the lawn at Benhams, a private garden near Fawley, this common grassland species was found by Penny Cullington. Superficially similar to a waxcap, it has a dry cap and stem and the cap, domed and dark grey brown to start with, fades and flattens, often cracking. The gills are white and markedly convex and brittle - unlike any waxcap - and it has a strong mealy smell (of rancid flour)
Hygrocybe pratensis  by Penny Cullington October 7th Hygrocybe pratensis (Meadow Waxcap)

This attractive grassland species was found just emerging on the lawn at Benhams, a private garden near Fawley, by Richard Fortey (photo Penny Cullington). Quite a common waxcap and easy to identify: neither cap nor stem are sticky and the gills are widely spaced and strongly decurrent (sloping down the stem).
Echinoderma asperum  by Penny Cullington October 7th Echinoderma asperum (Freckled Dapperling)

Better known as Lepiota aspera, this impressive and beautiful species was found in a shrub bed at Benhams, a private garden near Fawley, by Richard Fortey (photo Penny Cullington). Note the crowded white gills and skirtlike ring on the stem which often has chestnut brown raised scales like those on the distinctive cap. This quite common species has an unpleasant smell and can get to 10cm across or more. Superficially similar to an Amanita (having a scaly cap, white gills and a prominent ring on the stem) note the lack of volva at the stem base. This species is DANGEROUSLY POISONOUS

October 6th 2020

Coprinus comatus  by Penny Cullington Coprinus comatus  by Penny Cullington October 6th Coprinus comatus (Shaggy Inkcap / Lawyer's Wig)

Joanna Dodsworth found this collection in grass at Wotton Park Estate, photos Penny Cullington. We also have a collection of this very common but attractive Inkcap dated Sept 16 but felt today's was worth including as it shows fruit bodies at different stages of development including the beginnings of deliquescing in the taller specimen (height 12 cm), typical of the genus.
Ascocoryne sarcoides  by Penny Cullington October 6th Ascocoryne sarcoides (Purple Jellydisc)

Penny Cullington was surprised to find this species on woody remnants in an old bonfire site at Wotton Park Estate. Conspicuous by its absence so far this season, it is normally one of the commonest Ascomycetes to be found on fallen Beech (a tree hardly present at this site) but can occur on other hardwoods. Only separable with certainty from the almost identical A. cylichnium by its much smaller spores it is by far the commoner of the two species. Another gelatinous Asco to be aware of but a bit larger and paler is Neobulgaria pura (Beech Jellydisc) though it forms more distinct raised clustered discs than our species today.
Psathyrella multipedata  by Penny Cullington October 6th Psathyrella multipedata (Clustered Brittlestem)

Several tightly packed clusters of this species were found in soil in longish grass at Wotton Park Estate by Penny Cullington. Psathyrella is a large and difficult genus and very few species are nameable without using a scope, but this is one of them. Its preference for longish grass and habit of growing in dense domed clusters are the salient features of this species once you've picked one to check the typically brittle white stem and gills which start pale but end up almost black when mature - features of the genus.
Gymnopus erythropus  by Penny Cullington October 6th Gymnopus erythropus (Redleg Toughshank)

This collection was growing in litter under Oak at Wotton Park Estate, found by Penny Cullington. A typical rather flexible rubbery Gymnopus species, the caps are pale, almost white, with a chestnut brown centre, the gills are cream to white, but the feature to note in the field is the stem. Shiny smooth, hollow and often grooved, the reddish colour towards the base contrast strongly with the rest of the fruit body. It also has a sweet smell.
Crepidotus mollis  by Penny Cullington Crepidotus mollis  by Penny Cullington Crepidotus mollis  by Penny Cullington October 6th Crepidotus mollis (Peeling Oysterling)

Our first Crepidotus of the season, this is almost the only member of the genus nameable in the field and was found by Penny Cullington on the same trunk pile as Trametes hirsuta at Wotton Park Estate. It is the largest in the genus, with caps up to 8 cm across though often considerably smaller than this, and grows on deciduous fallen wood. Note the typical lack of stem and shell shape of the genus showing well in the upturned specimen (photo 2), and the key feature of this species showing in photo 3: the gelatinous elastic cuticle (cap covering) which one can easily stretch. In all other species in the genus the cap, if treated this way, will just break in half.
Trametes hirsuta  by Joanna Dodsworth Trametes hirsuta  by Joanna Dodsworth October 6th Trametes hirsuta (Hairy Bracket)

Joanna Dodsworth found this impressive spread of brackets on a pile of felled deciduous trunks in Wotton Park Estate (photos Penny Cullington). Much less common that the two better known Trametes species (see photos dated Sept 15 & 26), this species falls between the two both in size and in thickness and firmness. The zoned cap and white pores underneath are similar to the common Turkeytail, but the bumpy surface and general firmness make it more like a smaller version of Lumpy Bracket. Each bracket can be up to 10 cm across.
Pholiota adiposa  by Joanna Dodsworth Pholiota adiposa  by Joanna Dodsworth October 6th Pholiota adiposa ((Golden Scalycap)

Though we already have an example of this (see photo dated Oct 01) Joanna Dodsworth has been watching a good sized clump of the same species growing on Horse Chestnut at Brill Walks and the development over the space of five days is interesting. Photo 1 shows the collection six days ago with photo 2 taken today with caps now fully expanded. However, the heavy rain which fell in the interim has removed much of the scaliness leaving the caps almost smooth. See notes dated Oct 01 for more information.

October 5th 2020

 Cortinarius bergeronii by Jesper Launder October 5th Cortinarius bergeronii (a Webcap with no common name)

Jesper Launder found this impressive species in Jordans Village under Beech, identified by Geoffrey Kibby. It is a member of the sticky capped Phlegmacium group and extremely similar to C. elegantissimus which also goes blood red if you add a drop of the chemical KOH on the cap, as seen here on the larger cap. To split the two species you need to check the spore size - considerably smaller in today's species. It is seldom recorded but little known and much more recently described than C. elegantissimus.
Clitocybe odora  by Margaret Bolton Clitocybe odora  by Margaret Bolton October 5th Clitocybe odora (Aniseed Funnel)

This beautiful species was found by Margaret Bolton in Moorend Common in deciduous litter. This genus has been poorly represented so far this season and many Funnels are not at all easy to identify. This one, however, is probably the easiest with two key field characters: the strong smell of aniseed is unmistakeable and the blue green caps can sometimes be even darker than in this collection - a unique colour within the genus. However, be aware that the caps of Stropharia caerulea (see photo dated Sept 30) when young and fresh can also be this colour. Note, therefore, the differing gill colour which will separate the two species straight away.
Lactarius semisanguifluus  by Margaret Bolton October 5th Lactarius semisanguifluus (a Milkcap similar to Saffron Milkcap)

Margaret Bolton found this interesting Milkcap under Pine near Moorend Common. Initially impossible to tell from the better known Saffron Milkcap (see photo dated Sept 25), especially as both species are only found under Pine, one needs to damage the underside (as Margaret did) and wait for a few minutes watching for any colour change in the orange juice and flesh. Note how the upturned specimen is turning distinctly wine red where the stem was broken off, making this L. semisanguifluus. Probably not rare but not often recorded due to many finders assuming they have L. deliciosus!
Battarrea phalloides  by Richard Fortey Battarrea phalloides  by Penny Cullington Battarrea phalloides  by Penny Cullington October 5th Battarrea phalloides (Sandy Stiltball)

Richard Fortey was extremely excited to come across this very rare and unique species at a location in the south of the county. With very few known sites - all in southern or eastern England - it is new to Bucks. The species is loosely related to puffballs and stinkhorns, arising from a volva-like sac with a shaggy hollow stem up to 20 cms tall and topped with a cinnamon brown puffball-like head which contains the spores. It occurs all over the world in dry sandy places / deserts and appears to be moving north possibly as a result of global warming?
Inocybe flocculosa by Penny Cullington October 5th Inocybe flocculosa (Fleecy Fibrecap)

Penny Cullington found this collection under Douglas Fir in Common Wood. With so many very similar brown capped Fibrecaps, often classed as LBJs (Little Brown Jobs), it is not possible to name them without using a scope, but this species being a fairly typical example of the genus it was though worth including here.
Russula densifolia  by Penny Cullington Russula densifolia  by Penny Cullington Russula densifolia  by Penny Cullington October 5th Russula densifolia (Crowded Brittlegill)

Penny Cullington found good quantities of this fairly common Brittlegill under Beech in Common Wood. There were many large fruit bodies of R. nigricans (see photo dated Sept 18) - virtually identical to our species when viewed from above - in evidence here that it was all too easy to assume that they were all the same. Not so! Turn one over and the contrast between the gills of R. nigricans and R. densifolia is immediately obvious (see photo 3 with R. nigricans on the left and R. densifolia on the right). There are in fact other quite common look-alike species with the same crowded gills as today's; The only safe way to determine which you have is with a scope.
Cortinarius anomalus  by Penny Cullington October 5th Cortinarius anomalus (Variable Webcap)

Penny Cullington found this fairly common Webcap under Beech in Common Wood. A species which belongs to the large and difficult Telamonia group, it is recognisable by its palish grey brown slightly streaky cap with violacous hints when young, rather crowded gills which are bluish lilac when young, and a stem which is whitish with violaceous tones at the top and yellowish below. Cutting it open the cap flesh and top of stem is clearly violet and it has a rather nauseous smell.
Pleurotus pulmonarius  by Penny Cullington Pleurotus pulmonarius  by Penny Cullington October 5th Pleurotus pulmonarius (Pale Oyster)

Penny Cullington noticed this unusual species on a standing Birch trunk in Common Wood. Superficially very similar to the much more common Oyster Mushroom (see photo dated Sept 21), it tends to grow separately and not in clusters, the cap is never darker than pale cream and the stem is very short or virtually absent - all features in variance with Oyster Mushroom. Furthermore it has a delicate sweet smell similar to that of Clitocybe fragrans and in this area seems to occur most frequently on Birch, as today.
Baeospora myosura  by Penny Cullington Baeospora myosura  by Penny Cullington October 5th Baeospora myosura (Conifercone Cap)

Not far from the Mycena sanguinolenta also under the Douglas Fir today, Penny Cullington found this species in Common Wood. It grows on fallen rotting cones of various conifers, as do several other similar species, but this one can usually be recognised by its very crowded gills (see photo 2). The caps today were small, less than 1 cm across, but can be found twice this size.
Mycena sanguinolenta  by Penny Cullington Mycena sanguinolenta  by Penny Cullington October 5th Mycena sanguinolenta (Bleeding Bonnet)

Penny Cullington found just two fruit bodies of this unusual Bonnet in woody conifer litter in Common Wood. This is a delicate species with caps barely more than 1 cm across at most and a fragile stem which when broken exudes a watery reddish juice. It has a preference for Spruce litter, as here under Douglas Fir which is in fact a Spruce!), and the gills have a fine brown red edge (just visible in photo 2) which is a useful diagnostic feature if the juice is not forthcoming or noticed.
Marasmiellus ramealis  by Penny Cullington Marasmiellus ramealis  by Penny Cullington October 5th Marasmiellus ramealis (Twig Parachute)

If you notice a cluster of tiered tiny pale cream mushrooms on a dead bramble stem, you've probably found this species, collected today by Penny Cullington in Common Wood. Though it also occurs on fallen deciduous twigs, logs etc, it seems to favour dead bramble stems, frequently seen in large colonies. Caps are not much above 1 cm across and are superficially similar to those of Marasmius rotula (see photo dated Oct 01) to which it is distantly related. Note, however, the lack of collar where the gills attach to the stem, present in M. rotula.
Typhula quisquilliaris  by Penny Cullington Typhula quisquilliaris  by Penny Cullington October 5th Typhula quisquilliaris (Bracken Club)

Whilst on her knees with her camera Penny Cullington noticed these tiny white stalked fungi on a dead bracken stem. The whole fruit body is under 1 cm tall, about half its height being stem, the top half widening into a clavate swollen head. Not rare but easily overlooked, this species is only found on bracken stems thus is an easy one to name if you can find it!
Helvella crispa  by Penny Cullington Helvella crispa  by John Catterson October 5th Helvella crispa (White Saddle)

Penny Cullington found several fruit bodies of this beautiful but common Ascomycete growing in a grassy path edge in Common Wood. On the same day John Catterson found his collection in Naphill Common (photo 2). It's an easy one to recognise and can't really be mistaken for anything else, having a thick white distinctly ribbed stem topped with a saddle-shaped and irregularly lobed white head, the underside of which is creamy buff. Today's collection stood about 8 cm tall.

October 4th 2020

Aleuria aurantia  by Sarah Ebdon October 4th Aleuria aurantia (Orange Peel Fungus)

Sarah Ebdon spotted this attractive brightly coloured cup fungus in mossy soil at the edge of Kings Wood, Tylers Green. Always a nice species to find, this occasional Ascomycete appears much like an orange species of Peziza but is in fact not related. It often occurs on disturbed soil, ruts in tracks, and can sometimes be found in large clusters with fruit bodies getting to about 8 cm across or more.

October 3rd 2020

Bjerkandera adusta  by Sarah Ebdon Bjerkandera adusta  by Sarah Ebdon October 3rd Bjerkandera adusta (Smokey Bracket)

Sarah Ebdon found this cluster of brackets on fallen Beech in Naphill Common. Another common species of fallen deciduous wood and often appearing superficially very similar to Turkeytail (see photo dated Sept 26) the distinctive feature lies underneath (as with so many species of fungi!). The very fine pores are smokey grey (and darken with age or when pressed as shown here) but there always remains a distinct white rim (seen also on the upper surface). In contrast, Turkeytail has creamy white pores which are easily visible with the naked eye.
Panellus stipticus  by Sarah Ebdon Panellus stipticus  by Sarah Ebdon Panellus stipticus  by Paul Goby October 3rd Panellus stipticus (Bitter Oysterling)

Sarah Ebdon found this collection of small bracket-like mushrooms on fallen Beech in Naphill Common. Caps are typically kidney-shaped and can get to 3 or 4 cms across and the distinctive short stems are never central, always lateral (from the side). They often frequent the sawn off ends of deciduous logs in tiers and superficially appear similar to the genus Crepidotus (also confusingly named Oysterling!), also normally common but yet to be found this season. A trick to confirm this particular species: squeeze a fruitbody between a finger and thumb, then put the finger and thumb together to feel the tacky effect left by the gills. Photo 2, taken by Paul Goby, is of larger specimens in Naphill Common and shows the shape, gills and stem really well.
Laccaria amethystina  by Penny Cullington Laccaria amethystina  by Penny Cullington Laccaria amethystina  by Penny Cullington Laccaria amethystina  by Penny Cullington October 3rd Laccaria amethystina (Amethyst Deceiver)

This beautiful and often common species was found by Penny Cullington in litter in Penn Wood. Never as common as the closely related Deceiver (see photo and notes dated Oct 1st) and in some years quite scarce, the colour when fresh and moist as today is stunning though somewhat similar to Inocybe lilacina (see photo dated Sept 22) which, however, has differently coloured gills. The first large singleton (cap about 4 cm across) was then moved to join some smaller more typical specimens. Note how easy it is to be deceived, however, when this same collection was dried out and fades. It is the widely spaced gills which remain amethyst in colour which are the safest clue to identity.
Tubaria furfuracea  by Penny Cullington Tubaria furfuracea  by Paul Goby Tubaria furfuracea  by Paul Goby October 3rd Tubaria furfuracea (Scurfy Twiglet)

This group was growing in woody litter in Penn Wood, found by Penny Cullington. This is one of our commonest LBJs (Little Brown Jobs) and frequents woody remains, woodchips, sometimes apparently on soil, even in lawns on submerged woody bits. Sometimes found in large colonies, caps, gills and stem are all the same soft pinkish to cinnamon brown, caps fading when dry and often with white flecks (the scurf referred to in the common name), gills can be more decurrent (sloping) than shown here, and texture is soft, quite fragile. The scurf on today's specimens had long since been washed off by rain. . However, Paul Goby's two photos taken two weeks later in Naphill Common are good examples and show the scurfy caps and stems as well as the slightly decurrent gills.
Polyporus ciliatus  by Penny Cullington Polyporus ciliatus  by Penny Cullington Polyporus ciliatus  by Penny Cullington October 3rd Polyporus ciliatus (Fringed Polypore)

Penny Cullington found this conjoined pair on fallen Beech in Penn Wood. Not a common Polypore, and superficially similar in colour and shape to the very common P. leptocephalus (Blackfoot Polypore) - yet to be included, however - key features are the ciliate (finely frilly) margin and the widely spaced elongated oval shaped pores (see photos 2 and 3). In comparison, Blackfoot Polypore has a distinct black lower stem and much smaller finer pores.
Gymnopilus penetrans  by Penny Cullington October 3rd Gymnopilus penetrans (Common Rustgill)

This was found on fallen conifer wood in Penn Wood by Penny Cullington. It is commonly on fallen branches, stumps, woodchips of conifer, sometimes in large numbers, but also occurs on Beech. Caps get to about 6 cm though it's usually smaller than this, so a much smaller species than G. junonius (see dated 18th). To tell from other brown capped wood inhabiting mushrooms, turn over to see the typical ochre to rusty gills.
Russula nobilis  by Penny Cullington October 3rd Russula nobilis (Beechwood Sickener)

One of our commonest Brittlegills (previously R. mairei), only rather eaten singletons had been spotted until today in Penn Wood under its host tree and found by Penny Cullington. Yet another red-capped Brittlegill, this one has a much less firm feel than R. rosea (see dated 1st) and the cap skin peels readily from the edge to about halfway in, often leaving very pale pink flesh beneath. The colour is a soft pinkish rose red, often with cream patches, the gills are white and despite its common name most caps one finds have been eaten by slugs, squirrels, mice for whom it is a favourite! Note, not normally as shiny as seen here in the rain.
Cortinarius torvus  by Penny Cullington Cortinarius torvus  by Penny Cullington October 3rd Cortinarius torvus (Stocking Webcap)

Penny Cullington found this collection in Penn Wood under Beech, its most common host. It is one of several of the dry capped Telamonia group of Webcaps (of which there are hundreds!) which is recognisable in the field. Given the host tree, the brown caps tend to have a paler whitish edge, the gills are widely spaced with a violet tinge especially when young, but the telltale feature is the obvious membranous sheathlike white upturned ring on the stem reminding of the top of a sock or stocking (hence the common name) which remains into maturity. it also has a sweetish fruity smell.
Tricholoma ustale  by Penny Cullington October 3rd Tricholoma ustale (Burnt Knight)

Penny Cullington found this collection under Beech at Penn Wood. Quite a common Knight, it is host specific with Beech and in wet weather like today the tawny brown caps are shiny and slimy but in dry weather they blend into the leaf litter and are harder to spot. Caps can get to 7 cm across or more and the pale gills tend to be crinkly and become brown spotted.
Calocera pallidospathulata  by Penny Cullington Calocera pallidospathulata  by Penny Cullington October 3rd Calocera pallidospathulata (Pale Stagshorn)

This cluster was found on fallen bare conifer at Penn Wood by Penny Cullington. Clearly paler and much smaller than the bright yellow of C. viscosa, also found today, this species is only up to 1 cm tall and is slightly flattened and swollen 'spoon-shape' (see photo 2 in particular). It is common on fallen conifer but can also occur on rotting bare deciduous wood when possibly confusable with C. cornea (see photo dated Sept 24). The typical 'spathulate' shape and paler colour of today's species, however, should suffice to separate the two species.
Calocera viscosa  by Penny Cullington October 3rd Calocera viscosa (Yellow Stagshorn)

There were many examples of this species in Penn Wood growing on conifer - either stumps or fallen rotting trunks, found by Penny Cullington. Very common given the conifer host, this is a gelatinous genus and this particular species typically branches at the tips, the right hand specimen appearing very like stags' antlers. It is rubbery and tough, rooting deeply into the wood making it difficult to extricate, and can reach 8 cm in height.
Geastrum triplex  by John Catterson October 3rd Geastrum triplex (Collared Earthstar)

John Catterson found this singleton at Downley Common in woody litter. We have another rather damaged example (dated Sept 04), but it's worth comparing the two because the earlier one has a clear collar around the central part whereas today's has no typical collar at all - often the case! This does not mean it's a different species but note how the five rays are beginning to split radially - this is how the 'collar' if present is formed.
Hygrocybe psittacina  by Penny Cullington October 3rd Hygrocybe psittacina (now Gliophorus psittacinus) (Parrot Waxcap)

This beautiful collection was found in mown grass at Penn Street churchyard by Penny Cullington. We do have an earlier singleton (dated Sept 8) when conditions were dry, but today in the rain the slimy caps and stems were glistening! The cap colour is very variable and can have yellow or even pinkish or violet tones, but if in doubt over the species the telltale green is usually noticeable at the top of the stem (which may be yellow elsewhere as today). H. laeta (also now in genus Gliophorus) also has a slimy yellowish cap and stem and can be mistaken for today's species, but never has green at the stop of the stem.
Clavulinopsis helvola  by Penny Cullington October 3rd Clavulinopsis helvola (Yellow Club)

There were many of these in mown grass in the Penn Street churchyard, found by Penny Cullington. This species is one of three more or less identical Clubs (sometimes called Fairy Clubs), so species identification can only be made by checking the spores (shape and size). C. helvola, however, is by far the commonest of the three. All three are not much taller than the blades of grass they inhabit and even with this colour are easily overlooked. Note the wider often grooved upper section and narrower stem below common to all the species.
Hygrocybe quieta by Penny Cullington Hygrocybe quieta by Penny Cullington October 3rd Hygrocybe quieta (Oily Waxcap)

Penny Cullington found this in mown grass in the Penn Street churchyard. Believe it or not, it was all one large but rather broken specimen! We do have another photo (dated Sept 16) though the cap colour is much more typical here, thus worth including. Another medium sized yellow Waxcap, this one has orange gills and stem (compare with the pale yellow gills of the similar H. chlorophana, same date), also a smell similar to that of Lactarius quietus - hence the Latin species name. Photo 2 contains both these two Waxcaps for comparison: Left is H. chlorophana (two specimens) and Right is H. quieta (one large and one small). (As the two have differently shaped spores, these were checked to confirm the field identification.)
Hygrocybe chlorophana by Penny Cullington October 3rd Hygrocybe chlorophana (Golden Waxcap)

This collection was in mown grass in the Penn Street churchyard, found by Penny Cullington. Waxcaps are predominantly grassland fungi, many are brightly coloured and this common species is one of quite a few which are yellow and sticky - especially after rain as today. Note the gills which are slightly paler than the cap and the typical grooved and hollow stem, both good pointers for the species. This is a medium to large Waxcap with caps up to 7 cm across and has no noticeable smell.

October 2nd 2020

Clathrus archeri  by Claire Williams Clathrus archeri  by Claire Williams Clathrus archeri  by Sarah Ebdon Clathrus archeri  by Sarah Ebdon October 2nd Clathrus archeri (Devils Fingers)

This remarkable and unique fungus was new to the county last year in the same Naphill location as today's find made by Claire Williams. Rare in Britain, it is clearly related to the Stinkhorns, emerging from a similar gelatinous egg which can be up to 3 cm in diameter and having a pervasive unpleasant smell which attracts insects. Identification is not difficult! If you're interested, find out more at www.first-nature.com/fungi/clathrus-archeri.php Sarah Ebdon sent in two more photos showing different stages of development.

October 1st 2020

Cyanoboletus pulverulentus  by Penny Cullington Cyanoboletus pulverulentus  by Penny Cullington October 1st Cyanoboletus pulverulentus (Inkstain Bolete)

We do have this species already (dated Sept 22), but Penny Cullington found this fresher example under Oak and Lime at Turville Heath which is worth including separately. See notes under Sept 22, but suffice it to say that the striking blue staining took no more than two or three seconds in the smaller young specimen, leaving one in no doubt as to the identification. Note the yellow pores, not red or orange as in other strongly blueing boletes (which incidentally never go as deeply intense blue as this species).
Phlebia tremellosa  by Penny Cullington Phlebia tremellosa  by Penny Cullington October 1st Phlebia tremellosa (Jelly Rot)

Penny Cullington found this species growing resupinate (flat) on rotting bare deciduous wood at Turville Heath. As the common name suggests, this is not a hard bracket (in fact hardly a bracket at all) but has soft flesh with a gelatinous feel to it. The pinkish cream rather erratic poroid part is often not always on the underside (as here on a stick in photo 1) but occasionally it starts to form a 'semi'bracket (seen in photo 2). Note the crenulate (frilly) margin which is characteristic.
Laccaria laccata  by Penny Cullington Laccaria laccata  by Penny Cullington October 1st Laccaria laccata (Deceiver)

This very common species of woodland litter has been surprisingly scarce so far this season, only just starting to appear now. Penny Cullington found this collection under Lime at Turville Heath. Why Deceiver? Well, when fresh and moist as in today's collection, the caps are a bright rusty orange brown with matching stems and pinkish widely spaced gills. But this is a strongly hygrophanous species (i.e. the caps fade remarkably as it dries out), consequently, when faded and pale beige to almost white, they deceive because from above they look so different. Penny kept this collection and placed them in the sun for a couple of hours, then took the second photo to demonstrate just this. However, note how the gills become even more clearly pink when drying. So if confused in the field, by turning over a fruit body and seeing those widely spaced pink gills, hopefully you will not be deceived for long!
Psathyrella corrugis  by Penny Cullington October 1st Psathyrella corrugis (Red Edge Brittlestem)

This cluster was found by Penny Cullington growing in rotting woodchip at Turville Heath. A large and tricky genus, very few Brittlestems can be identified in the field. They have white fragile stems and caps usually some shade of brown but fade in light or with age. Caps can be smooth - as here - or scaly, gills start out pale beige but gradually darken as the blackish spores develop (note the paler gills of the younger fruitbody in the foreground). This species (and some others also) can have gills with a distinct red edge, hence the common name, but as often as not this feature is missing! Thus recourse to a scope is essential.
Scleroderma cepa  by Penny Cullington October 1st Scleroderma cepa (Onion Earthball)

This quite unusual Earthball was found under Lime at Turville Heath by Penny Cullington. The species is less scaly than our three common species - S. citrinum (see Sept 20), S. areolatum and S. verrucosum (see Sept 19) - having a pale slightly roughened surface, and prefers sandy soils usually under Oak (though not in this case). Note the typical thick skin and dark undeveloped spore mass within when cut in half - differing from Puffballs with which this genus is sometimes confused
Marasmius rotula  by Penny Cullington Marasmius rotula  by Penny Cullington October 1st Marasmius rotula (Collared Parachute)

These common tiny white mushrooms were growing on woody debris under Lime at Turville Heath, found by Penny Cullington. Caps can get to not much more than 1cm across and have a sunken dark centre with distinct radial fluting. Turn one over to reveal the cog-wheel-like collar around the stem, a feature found in only this and one other species (M. bulliardii, much smaller and found exclusively on rotting Beech leaves, not woody debris). Note also the typical stem of the genus: pale at the very top then reddish and eventually black, also in this case extremely thin and wiry.
Lactarius subdulcis  by Penny Cullington Lactarius subdulcis  by Penny Cullington October 1st Lactarius subdulcis (Mild Milkcap)

Penny Cullington came across these two specimens growing under mixed deciduous trees at Turville Heath. The species is one of two, both very common, which look extremely similar, the second being L. tabidus (Birch Milkcap). Tree association is helpful but not entirely secure because despite its name the Birch Milkcap can occur under other trees in mixed woodland. Furthermore today's species occurs mainly under Beech but can also occur under other trees. Today there was no Beech present but plenty of Birch so testing the the milk by placing a drop on a white hankie (preferably cotton, not paper!) was essential. If you have L. tabidus the drop turns bright yellow in under 30 seconds. If you have L. subdulcis (as here) there is no change. (Incidentally, yellow but only slowly, in a minute or more = L. lacunarum!) A further difference - useful if it's dry and no milk is forthcoming - L. tabidus smells faint, slightly fruity but L. subdulcis smells oily, of rubber as in L. quietus.
Pholiota adiposa  by Paul Goby Pholiota adiposa  by Paul Goby October 1st Pholiota adiposa (Golden Scalycap)

Paul Goby first noticed this brightly coloured fungus just emerging on a Beech log in Naphill Common two days earlier (photo one) and returned today to see how much further developed it was (photo two).There are several very similar species of Scalycap which are difficult to separate without checking their spore size (not done here so the determination is not 100%). The recent rain makes it easier to name because the thick layer of slime on the cap is typical of this species which has, however, a dry scaly stem. It is occasional and favours Beech though is far less common on this host than P. squarrosa (Shaggy Scalycap) which has a dry cap and stem. Both can grow in large clusters and are usually at the base of standing trunks.
Coprinopsis lagopus  by Penny Cullington Coprinopsis lagopus  by Penny Cullington October 1st Coprinopsis lagopus (Hare'sfoot Inkcap)

This delicate and clearly mature Inkcap was found in grassy soil at Turville Heath by Penny Cullington. This is a species which starts out looking entirely different: an oblong enclosed acorn shape with a dense covering of whitish fluffy fibrils, hence the common name. (Sadly this was a singleton but we'll add a photo of the hare'sfoot stage when available.) As seen here, it's not long before it withers and deliquesces into an inky mess, but it did last long enough for Penny to find the microscopic details at home to confirm the identification. A common Inkcap found in woodland litter, often also on woodchip.
Scutellinia scutellata  by Penny Cullington Scutellinia scutellata  by Penny Cullington October 1st Scutellinia scutellata (Common Eyelash)

This attractive little Ascomycete was found by Penny Cullington on a damp woodchip pile at Turville Heath. Only 5mm across, each tiny cup is edged with dark 'hairs', hence the common name. There are several quite common species of Eyelash, all extremely similar in appearance, and they are found in damp places either on soil or woody remains. Identification to species level can only be made by measuring the spores and the length of the hairs, but this species is the commonest and has the longest hairs.
Gymnopus confluens  by Penny Cullington Gymnopus confluens  by Penny Cullington October 1st Gymnopus confluens (Clustered Toughshank)

This collection (previously in genus Collybia) was found growing under Oak at Turville Heath by Penny Cullington. A typical rather rubbery flexuouse Toughshank, it is quite common and similar to many other brown capped mushrooms growing in woodland litter until you turn one over and notice the very crowded pale gills and stem which is finely furry all over and gradually darker lower down (also often hollow). Its clustered habit is also typical though occasionally one finds singletons! (Note the detailed photo is not out of focus but might appear so because of the furry stem surface.)
Inocybe geophylla  by Penny Cullington October 1st Inocybe geophylla (White Fibrecap)

This, one of the commonest Fibrecaps, was growing in troops under Limes today at Turville Heath, found by Penny Cullington. A small species with caps under 3 cm across at most, it is easily mistaken for perhaps one of the white capped Hygrophorus species (Woodwaxes) or a small white Tricholoma (Knight) until one turns a fruitbody over and sees the typical gill colour of the genus: beige to buff when young then gradually darker snuff brown when mature. (Woodwaxes and Knights have white gills.) It is not the only white-capped Fibrecap but others are extremely rare. It occurs under many different deciduous trees.
Russula grata  by Penny Cullington October 1st Russula grata (Bitter Almond Brittlegill)

Penny Cullington found this occasional Brittlegill under Lime and Oak at Turville Heath. This belongs to the group of Brittlegills known as the 'smellies' and is one of several large species which look almost identical in the field having sticky ochre caps and retaining their rounded shape until maturity (see also R. subfoetens dated Sept 22). Today's species, rather than having the rather unpleasant sour smell of the look-alikes - R. foetens and R. subfoetens - has a beautiful sweet smell of almonds or marzipan. It's always a pleasant surprise to put this one under one's nose because it is far less common than the sour smelling species.

September 30th 2020

Polyporus squamosus  by Joanna Dodsworth Polyporus squamosus  by Joanna Dodsworth September 30th Polyporus squamosus Polyporus squamosus

This stunning fungus was found growing out of the top of a Horse Chestnut stump by Joanna Dodsworth at Brill Walks. By far the largest of our scaly capped Polypores, it often grows high up on living trunks as a saddle shaped bracket reaching 2 ft or more across, hence the common name. It is unusual to find it so erratically formed as here, having emerged from the centre of a stump and forming not such a comfy saddle! Note the pale cream pores underneath visible in the second photo.
Auricularia auricula-judae  by Sarah Ebdon September 30th Auricularia auricula-judae (Jelly Ear)

Sarah Ebdon found this nice collection in Bradenham Wood growing on living Elder. A very common fungus fruiting at any time of year given favourable conditions, it is surprising that this unmistakeable species has been conspicuous by its absence this season until now. It's normal host tree is Elder but it is quite often found on fallen Beech and occasionally on other wood. No further comments needed - the common name says it all!
Cortinarius hinnuleus    by Penny Cullington Cortinarius hinnuleus    by Penny Cullington September 30th Cortinarius hinnuleus (Earthy Webcap)

This was found growing under Lime, one of its known host trees, at Turville Heath by Penny Cullington. Not rare but probably under-recorded as very few Webcaps belonging to the large and difficult group Telamonia are nameable, thus many mycologists tend to pass them by. It is interesting that in the last few days three related Telamonia Webcaps have turned up, all belonging to the Hinnulei complex now sorted out with DNA. This complex shares the notably widely spaced orangy gills and earthy smell, and today's species has a particularly pungent earthy smell (hence the common name) and occurs under several deciduous trees. Compare with C. lacustris (dated Sept 27th) and C. hinnuleoarmillatus (dated Sept 28th) both considerable rarities.
Russula xerampelina by Penny Cullington Russula xerampelina by Penny Cullington September 30th Russula xerampelina (Crab Brittlegill)

Penny Cullington was surprised and pleased to find this rare species under a mature Pine, its host tree, at Turville Heath. Though we have quite a few county records named as this species it is likely that most of them are incorrect. Until fairly recently it was safe to name any Brittlegill which developed a smell of cooked crab and the stem, when rubbed with a Ferrous Sulphate crystal, turned dark green, as R. xerampelina. It is now known that this is a large complex of species still not fully understood. In the south we find and recognise about three of these, one of which (R. faginea dated Sept 27) grows under Beech. What we now call the true R. xerampelina (which grows exclusively under Pine) is common in Scotland but considerably less so elsewhere. It is a large robust Brittlegill with a blood red to purplish red cap with a substantial clavate stem having distinct pink red patches.
Russula betularum    by Penny Cullington September 30th Russula betularum (Birch Brittlegill)

Another common Brittlegill conspicuous by its absence so far this season, it was found under Birch, its host tree, at Turville Heath by Penny Cullington. All parts of the fruit body are very fragile thus making it difficult to collect without damage, so a pink capped Brittlegill under Birch which is fragile is one of the easiest to name in the field. Further confirmation is that the cap skin peels off almost completely. the cap colour can sometimes be almost white with only a hint of pink.
Russula pseudointegra     by Penny Cullington Russula pseudointegra     by Penny Cullington September 30th Russula pseudointegra (Scarlet Brittlegill)

This striking Brittlegill was found under Oak, its host tree, at Turville Heath by Penny Cullington. A large and not uncommon Brittlegill with caps up to 10 cm across, it is one of many having red caps but is possibly the most striking when shiny and fresh as it was today. Sadly the second specimen nearby was smashed but served to show the gill colour which starts out pale cream but eventually becomes yellow-orange in maturity. Just visible in both photos is the pale rusty salmon stem reaction when rubbed with a Crystal of Ferrous Sulphate.
Russula fellea    by Penny Cullington Russula fellea    by Penny Cullington September 30th Russula fellea (Geranium Brittlegill)

This quite common Brittlegill has been conspicuous by its absence so far this season but was found by Penny Cullington under Beech, its host tree, at Turville Heath. We now have for comparison a full house of the yellow capped Brittlegills which have white to pale cream gills: R. ochroleuca (Sept 16), R. claroflava (Sept 15) , R. farinipes (Sept 22) and now R. fellea. The second photo here shows how in R. fellea the paler outer cap colour more or less matches the gills and stem whereas in the others there is a clear contrast between darker cap and paler gills and stem. Our species today also has a very distinctive smell: sweet, of stewed apple or for some Geranium, hence the common name.
Stropharia caerulea    by Penny Cullington Stropharia caerulea    by Penny Cullington September 30th Stropharia caerulea (Blue Roundhead)

This common grassland species was found by Penny Cullington at Turville Heath. Sadly this was a singleton with a typically faded cap which when young and fresh is a beautiful blue-green. Caps are smooth and sticky, gills start out pale buff but gradually darken as the dark brown spores mature, stems are striking with a white edged blue ring and below this more blue flecked with white. A very attractive species.
Gymnopus peronatus  by Penny Cullington Gymnopus peronatus  by Penny Cullington Gymnopus peronatus  by Penny Cullington September 30th Gymnopus peronatus (Wood Woollyfoot)

Penny Cullington found this common species (previously in the genus Collybia) in grassy litter under mixed trees at Turville Heath. The brown caps up to about 4 cm across look like those of many other woodland mushrooms and it's not until the underside is revealed that one can recognise it. The first feature to note is the lower stem which is finely hairy and usually has debris adhering to the base, hence its common name. Note also the characteristic shape and colour of the gills.

September 29th 2020

Bolbitius titubans    by Penny Cullington Bolbitius titubans    by Penny Cullington Bolbitius titubans    by Penny Cullington September 29th Bolbitius titubans (Yellow Fieldcap)

Penny Cullington found this small grassland species (previously B. vitellinus) in a meadow at Rushbeds Wood. It is common in grass, also sometimes in woodchips, though is a delicate species and rather shortlived. Very thin fleshed and not unlike one of the Parasola group of Inkcaps in form, when young the cap is entirely yolk yellow then as it expands develops the typical grooves seen here on this singleton, retaining the yellow only at the centre. As luck would have it, Penny found young specimens the following day at Turville Heath growing on woodchip, which demonstrate just how strikingly yellow the species starts out.
Marasmius oreades     by Penny Cullington September 29th Marasmius oreades (Fairy Ring Champignon)

A very common grassland species, this was in a meadow at Rushbeds Wood, found by Penny Cullington. As the common name suggests, it can often be found in rings on lawns in large numbers - the rings gradually increasing in size year by year, though this is by no means the only mushroom to do this. Note the rather widely spaced gills and flexible texture. The cap fades as it dries but it can be revived by soaking in water - a unique feature of the genus.
Mycena galericulata and Mycena acicula    by Penny Cullington Mycena galericulata and Mycena acicula    by Penny Cullington Mycena galericulata and Mycena acicula    by Penny Cullington September 29th Mycena galericulata and Mycena acicula (Common Bonnet and Orange Bonnet)

Penny Cullington found these two species of Bonnet together on a mossy log in Rushbeds Wood - one of the largest Bonnets alongside one of the smallest! M. galericulata is very common on fallen deciduous wood and when still small (see the three LH specimens) looks like many other fallen wood inhabiting Bonnet species. It becomes easier to recognise when it gets larger (with caps up to 6 cm or more across) just because of its size, but a key feature to note is the interconnecting ridges between the gills (hard to see when young but increasingly obvious as it grows - see second photo). Take another look at the first photo where M. acicula is just visible as an orange speck above the far LH. specimen!The cap never exceeds 6 mm (the third photo being a close-up of the same specimen). There are many other tiny Bonnets but this is the only one with a bright orange cap and yellow stem. It's quite common though easily missed and favours woody mossy litter.

September 28th 2020

Cortinarius hinnuleoarmillatus   by Penny Cullington Cortinarius hinnuleoarmillatus   by Penny Cullington September 28th Cortinarius hinnuleoarmillatus (A Webcap with no common name, new to Britain )

Penny Cullington found this collection growing in a grassy path edge near Hazel and Willow in Rushbeds Wood. See comments for C. lacustris (a very similar species, dated Sept 26th) for some background information about the Telamonia section of this genus. Comparing the photos here with that of C. lacustris, note the different rings on the stem: white and thin in C. lacustris but notably large and orange in this new species with the orange continuing down the stem below the ring - an almost unique feature. DNA testing is now required before acceptance onto the British list, but Penny and Geoffrey Kibby are confident this will be confirmed.
Armillaria tabescens    by Penny Cullington September 28th Armillaria tabescens (Ringless Honey Fungus)

Penny Cullington found several tight clusters of this unusual species just beginning to emerge, apparently in soil but probably on Oak roots, at Rushbeds Wood. Like a small A. mellea (see photo dated Sept 27th) having a cylindrical stem, it differs from all other woodland Armillaria species by the complete absence of a ring on the stem
Polyporus durus    by Paul Goby Polyporus durus  by Paul Goby Polyporus durus  by Paul Goby September 28th Polyporus durus (Bay Polypore)

This singleton Polypore (previously P. badius) was found by Paul Goby in Bradenham Wood on fallen Beech. All our Polypore species grow on fallen wood and this is the largest of those having smooth caps (sometimes up to 25 cm across or more), though probably not the commonest. Look for the shiny smooth bay brown funnel-shaped cap with tiny whitish pores beneath to distinguish it from others. Note also that sometimes the stem can be eccentric (off centre) or very short.

September 27th 2020

Phaeolus schweinitzii   by Penny Cullington September 27th Phaeolus schweinitzii (Dyer's Mazegill)

This unusual-looking brackets was found by Penny Cullington at Pullingshill Wood at the base of a Larch stump. Not rare given its conifer host, most commonly Pine, it has softish texture and the dark centre with paler zones ending up with a yellow margin make it unmistakable. Often dinner plate size, the pores underneath have a greenish olive glint and turn dirty brown when pressed (seen at the bottom left of the photo).
Hydnum rufescens  by Penny Cullington Hydnum rufescens  by Penny Cullington September 27th Hydnum rufescens (Terracotta Hedgehog)

This rather emaciated collection was growing in vegetation in Mousells Wood, found by Penny Cullington. Almost as common as the paler capped Wood Hedgehog (compare with photo dated Sept 06), from above this might be mistaken for a number of gilled fungi, but turning one over reveals all. Note that not just the cap is a darker colour than H. repandum but also the characteristic spines below (see second photo). There are other much rarer similarly coloured Hydnum species recently described which have differently shaped spores.
Russula olivacea   by Penny Cullington Russula olivacea   by Penny Cullington September 27th Russula olivacea (Olive Brittlegill)

This occasional species was quite common under Beech (with which it is host specific) in Mousells Wood, found by Penny Cullington. Superficially similar to others in this large and tricky genus, it is a big firm species though the cap colour is very variable and often much more vinaceous pink than shown here. The give-away character in the field is the subtle pink flush right at the top of the stem (see second photo). Confirmation is the salmon reaction when the stem is rubbed with a crystal of Ferrous Sulphate and the almost unique blackcurrant stain with a drop of Phenol (other Brittlegills turn dirty brown). Both reactions are visible in the photo.
Russula luteotacta  by Penny Cullington Russula luteotacta  by Penny Cullington September 27th Russula luteotacta (a Brittlegill with no common name)

An uncommon Brittlegill, this collection was found by Penny Cullington in a damp grassy track near Beech in Mousells Wood. It's odd that there is no common name for this species but the Latin name describes it perfectly: yellow when touched. The cap colour is variable but is a combination of pink and cream, also the cuticle (cap skin) hardly peels at all. But the unique feature is often not revealed for several hours after collection: any damaged parts turn brassy yellow (see second photo). So if you suspect you have this species, scratch the stem or break the gills, then place in a pot and forget about it till the next day!
Lactarius fluens  by Penny Cullington September 27th Lactarius fluens (a Milkcap with no common name)

This nice collection was found under Beech in Mousells Wood by Penny Cullington. An occasional species, it is easily confused with others such as L. blennius (see photo dated Sept 13) when the cap can have very similar markings. The best features to note are the distinct paler margin (very clear in this collection) and the copious milk (hence the species name) which literally drips - in this case from the damaged cap surface, where I'd removed a strand of dead grass, as well as the gills!
Armillaria mellea  by Penny Cullington Armillaria mellea  by Penny Cullington September 27th Armillaria mellea (Honey Fungus)

Penny Cullington found large quantities of this common fungus growing typically tightly clustered on and around a fallen Beech at Pullingshill Wood. A species no one wants to find in their garden, it is one which attacks and kills trees and shrubs, spreading via long black bootlace-like mycelial threads which one can often see on the surface of bare trunks when no fruit bodies are around. To tell A. mellea from the several other species in the genus, all but one of which have a ring as here, note the long cylindrical stem with no yellowing or swelling towards the base. Only this species is so dangerous to plants.
Russula faginea  by Penny Cullington September 27th Russula faginea (A Brittlegill with no common name)

This was found by Penny Cullington in Mousells Wood under Beech, its host tree. This is a robust (caps up to 14 cm across) and also rare Brittlegill belonging to the Xerampelina group that is distinguished by smelling distinctly of cooked crab when mature! This group has a unique colour change reaction when the stem is rubbed with a Ferrous Sulphate crystal: instead of the normal rusty orange they turn dark green, eventually black. R. faginea is not often found but regularly turns up at this particular site – a typical Chiltern beech wood. (Note the green FE reaction on the rather damaged LH specimen.)
Agaricus bohusii by Alan Gudge September 27th Agaricus bohusii (Medusa Mushroom)

Juliet Gudge noticed this unusually striking and rare species of Agaricus (Mushroom) under a hedge in Frieth. We have just 3 previous county records, the last in 2014, so this was a notable find. Once one turns it over and sees the typical free gills and ringed stem of a true Mushroom, thus confirming the genus, the dark raised almost triangular cap scales on a pale background make this species instantly recognisable. It also roots deeply and firmly into the soil and tends to grow in tight clusters as here, sometimes in large numbers.

September 26th 2020

Cortinarius lacustris   by Penny Cullington September 26th Cortinarius lacustris (a Webcap with not common name)

Penny Cullington found this group of Webcaps growing under Oak in mud at a pond edge in Naphill Common. By a lucky chance she was meeting up with Cortinarius expert Geoffrey Kibby the following day who was able to name it for her. There are very many similar Webcaps (from Section Telamonia) and very few mycologists who have the skills and experience to recognise some of them. This species was first described in 1997 and only identified as British in the last few years. Its typical habitat is exactly as above, i.e. in damp soil in broadleaved woodlands, most frequently under Oak, so a species new for the site and also for the county.
Trametes vericolor   by Penny Cullington Trametes versicolor   by Penny Cullington September 26th Trametes versicolor (Turkeytail)

This very common clustered bracket was found by Paul Cullington on a stump in Naphill Common. Like Stereum hirsutum (Hairy curtain Crust) it can be found at any time of year given favourable conditions, and is indeed sometimes mistaken for that species. Comparing the two: the zoned tops are extremely variable in colour but rarely orange rust as in that species. Also, turning a piece over reveals white distinct pores (see detailed photo) in contrast to the almost smooth orange underside of that species.
Phallus impudicus  by Penny Cullington September 26th Phallus impudicus eggs (Stinkhorn)

Penny Cullington found these in litter in Naphill Common, though only in the egg state. She could tell from the lack of smell that no developed fruit bodies were around. Note the thick gelatinous outer layer which protects the developing fungus, recognisable even in this state when sliced open, also the strands of white mycelium at its base. It is only when expanded that the offensive smell gives away the presence of any fruit bodies nearby.
Grifola frondosa by Penny Cullington Grifola frondosa by Paul Goby September 26th Grifola frondosa (Hen of the Woods)

This impressive bracket was found in Naphill Common on an old Oak trunk by Penny Cullington and (separately the same afternoon by) Paul Goby, his being the photo + ruler. An occasional species, it was new to the site last year. The tiered tightly formed fronds are typical and the only species with which it might possibly be confused is young Meripilus giganteus (Giant Polypore) before it has grown to be enormous when unmistakable as anything else. If in doubt, break off a piece and keep it 30 minutes or so. If it starts to blacken then you have the Meripilus as G. frondosa does not change colour.
Pseudoboletus parasiticus  by Paul Goby September 26th Pseudoboletus parasiticus (Parasitic Bolete)

Paul Cullington found this impressive collection growing out of its host fungus, Scleroderma citrinum, in Naphill Common. This appears to be new to the site (though I seem to recall finding it here last year?). It is the only bolete to have formed a connection with another fungus in this way, growing actually attached to it rather than to tree roots. In some years it is conspicuous by its absence but last year was a good one and it looks as if this year may well be too. So do look out for it wherever you see the very common S. citrinum (Common Earthball)
Tricholoma album   by Paul Goby September 26th Tricholoma album (White Knight)

Paul Cullington found the collection under Oak in Naphill Common. One of several white capped Knights, all of which have a pervasive and unpleasant smell especially when contained for any time in a pot, this one is probably quite rare and probably often misdetermined. It is found only under Oak whereas the much commoner T. stiparophyllum (Chemical Knight) occurs under Birch and even more common T. lascivum (Aromatic Knight) occurs under many different trees.
Lepiota ignivolvata    by John Catterson September 26th Lepiota ignivolvata (a Dapperling with no common name)

John Catterson found this beautiful and rare mushroom in Tinkers Wood in the identical spot where he remembered it fruiting in 2014 when identified by Derek Schafer. Found in calcareous woodland with Beech, the diagnostic features are the cream cap with rusty orange centre together with the rather low slung stem ring having a distinctive rusty rim. It is a medium sized Dapperling having the typical white free gills of the genus and an unpleasant smell similar to that of the common Lepiota cristata (Stinking Dapperling).

September 25th 2020

Abortiporus biennis    by Paul Goby Abortiporus biennis    by Paul Goby Abortiporus biennis    by Paul Goby September 25th Abortiporus biennis (Blushing Rosette)

Paul Goby first noticed this quite common bracket on a Beech log in Naphill Common and it was the subject of interest over the next week in case it was a rarity. It was eventually identified by Martyn Ainswoth (RBG Kew) . Commonly found growing on submerged roots at pathsides, this species is much less often found on logs (as here) when it appears somewhat atypical. Note the labyrinthine (maze-like) pore formation and pinkish tones which are key features.
Ganoderma australe  by Paul Goby Ganoderma australe  by Paul Goby Ganoderma australe  by Paul Goby Ganoderma australe  by Paul Goby September 25th Ganoderma australe (Southern Bracket)

Paul Goby found this very common bracket on living Beech at Naphill Common. This is one of two extremely similar species which cannot with any certainty be separated without measuring their spores (not done in this case, so no guarantee of accuracy here). This is normally by far the commoner of the two in question - the other being G. applanatum (Artist's Bracket), but at Naphill Common we often find G. applanatum, proven by the tell tale presence underneath of the galls of a fly which (it appears) only occur on that particular species. As these galls are not visible on the pores of Paul's collection I've therefore guessed that this must be G. australe. Note that though the pore surface is pale, the spores are cocoa brown, in fact visible in the photo 1 where the wood / bark beneath each bracket has changed colour due to the spore deposit. Photo 2 is a close-up of the pores also coloured by the spores.
Panus conchatus   by Tony Marshall September 25th Panus conchatus (Lilac Oysterling)

Tony Marshall found this cluster on a stump at the roadside in Prestwood. Not rare but certainly only occasional, the species has similarities to Oyster Mushrooms which also grow on fallen deciduous wood and have decurrent (sloping) gills. Notable features of this species are the strongly funnel-shaped caps and subtle lilac tints to the gills and stem when young, though (in common with Wood Blewits) this tends to fade to tan brown as it matures. It has a pleasant sweet smell.
Suillus luteus  by Penny Cullington September 25th Suillus luteus (Slippery Jack)

This, our 18th species of bolete this month, was found under Pine at Stoke Common by Penny Cullington. Unfortunately not the most photogenic material, it does show the basic diagnostic features: a very sticky rich brown cap, yellow pores and a stem with a significant membranous ring (seen still well attached and covering the pores in the RH specimen but leaving just some brownish remnants on the central specimen). Suillus grevillei Larch Bolete) has a similar ring (see photo dated Sept 16th for comparison) but grows exclusively under Larch and has a paler cap; today's species grows exclusively under Pine.
Lactarius deliciosus   by Penny Cullington Lactarius deliciosus   by Penny Cullington September 25th Lactarius deliciosus (Saffron Milkcap)

This distinctive and attractive Milkcap was found by Penny Cullington under Pine at Stoke Common - sadly only a singleton. There are just a few Milkcaps having these unusual coloured gills and milk, all of which grow under conifers of some sort. The two relatively common species are L. deterrimus (False Saffron Milkcap), found only under Spruce, and today's species found only under Pine. If you find one under Pine with gills and milk which turn wine red after a few minutes, then you probably have the much rarer L. semisanguifluus!
Lactarius helvus  by Penny Cullington September 25th Lactarius helvus (Fenugreek Milkcap)

Penny Cullington found this collection under Pine and Birch at Stoke Common. Not a rare Milkcap but only found where Pine is present on acid sandy soil - somewhat unusual conditions in the Chiltern area. Fruiting was only just under way so the largest cap was only 2 cms across; in a good year it can come up in hundreds here. Once you've realised you have a Milkcap this is an easy one to name to species: it has a distinct smell of curry powder, also the 'milk' is completely colourless - a unique feature in the genus. Today's however, were too dry to produce anything which showed in a photo!

September 24th 2020

Ramaria stricta  by Sarah Ebdon Ramaria stricta  by Paul Goby September 24th Ramaria stricta (Upright Coral)

Sarah Ebdon found this attractive Coral in woodland litter in Bradenham Wood. There are many species of Ramaria, all rare except for this one which is quite common and favours Beech woodland. The wine red bruising visible at the front of the cluster tends to occur as it ages or dries out. Note the digitiform branching tips to each stem. On collection one finds at the base a mass of white mycelial threads attached to the substrate. (Paul Goby took photo 2, a lovely example, in Bottom Wood on Oct 09.)
Stereum hirsutum  by Paul Goby September 24th Stereum hirsutum (Hairy Curtain Crust)

Paul Goby found this, one of our commonest brackets on fallen deciduous wood, on Beech at Naphill Common. It grows in tightly clustered colonies of little brackets - each one up to 3 cms across, at any time of year given suitable conditions. Note the zoned top surface where when fresh one can see the finely hairy covering (here clearly visible on the top left fruit body). Note also it has an almost smooth under-surface which is more-or-less concolorous with the top - unlike the equally common Trametes versicolor (Turkeytail) with which it is frequently confused and which is cream to white with distinctly visible pores underneath.
Hygrocybe flavipes   by Tony Marshall Hygrocybe flavipes   by Tony Marshall September 24th Hygrocybe flavipes (Yellow Foot Waxcap)

This rare Waxcap was found by Tony Marshall in unimproved grass in a churchyard near Gt. Missenden. Churchyards are good places to look for Waxcaps together with other grassland loving genera. We have just one previous county record for this particular species. There are a few greyish capped Waxcaps, all very rare except for H. irrigata (Slimy Waxcap) - easily recognised because the stem is so slimy one can hardly pick it up! No other Waxcap has a yellow base to the stem (as seen in the second photo), note also the decurrent (sloping gills) and dry stem though the cap is sticky.
Hebeloma sinapisans   by Penny Cullington Hebeloma sinapisans   by Penny Cullington September 24th Hebeloma sinapisans (Bitter Poisonpie)

Our first photo of a member of this large and tricky genus, this was found under Beech at Mousells Wood by Penny Cullington. It is typical of its genus, very few of which can or should be named in the field and all of which are mycorrhizal with trees. They have sticky, smooth, pale to darker brown caps and white stems, often with a distinct smell of radish (though a few have a sweet smell). The species here is a large one with caps up to 10 cm across or more, it also has a bulbous stem base (seen in the LH specimen) and when sliced open there is a hanging flange (wick) at the top of the stem.
Tricholoma sciodes  by Penny Cullington Tricholoma sciodes  by Penny Cullington September 24th Tricholoma sciodes (Beech Knight)

Penny Cullington found this collection under Beech (with which it is host specific) in Mousells Wood. An occasional though not uncommon species given the frequency of Beech in the Chilterns, it is one of quite a few grey capped Knights with which it can be confused. Note the slight umbo (central bump) and smooth but slightly streaky surface on the cap (also features of T. virgatum which, however, frequents conifer or birch, but not Beech), also with care one can see a black edge to the gills in more mature specimens (see detailed photo) not found in T. virgatum.
Calocera cornea  by Paul Goby September 24th Calocera cornea (Small Stagshorn)

Paul Goby found this attractive little species on a fallen Beech trunk at Naphill Common. Not at all rare but often overlooked or misnamed, it is classified as one of the 'Jelly' fungi and never exceeds 1cm in height. It occurs most frequently on Beech and has a gelatinous feel when fresh, as here, but dries out to a darker orange. The name cornea refers to its slight curved shape as in cows' horns.
Cortinarius amoenolens  by Penny Cullington Cortinarius amoenolens  by Penny Cullington Cortinarius amoenolens  by Penny Cullington Cortinarius amoenolens  by Penny Cullington September 24th Cortinarius amoenolens (Blue Webcap)

This collection was found under Beech in Mousells Wood by Penny Cullington. One of two Webcaps from section Phlegmacium to be fruiting under Beech here today, this species is not a rarity but still exciting to find. Displaying many characters typical of these particular Webcaps (see notes under C. caesiocortinatus) it has a brown cap with violaceous tinted gills when young (though later these turn rusty brown), but gets its common name from the flesh inside the stem which is also violaceous (seen here in a mature specimen).
Cortinarius caesiocortinatus    by Penny Cullington Cortinarius caesiocortinatus    by Penny Cullington Cortinarius caesiocortinatus    by Penny Cullington September 24th Cortinarius caesiocortinatus (No common name)

This stunning collection was the find of the day for Penny Cullington at Mousells Wood under Beech. This typical Chiltern Beech woodland has produced several exciting species in the last few years, particularly from the genus Cortinarius section Phlegmacium to which this species belongs. Identification, with the aid of a scope and some help from colleague Mario Tortelli, was confirmed by the yellow KOH reaction of the flesh and the spore shape. Note the wide platform-like volva at the base and fine cortina (cobwebby mesh) in the young specimen, both features typical of this section of an enormous genus together with the sticky cap. New to the county with only a few UK records.
Marasmius wynnei   by Penny Cullington September 24th Marasmius wynnei (Pearly Parachute)

Penny Cullington found this cluster of young fruit bodies just emerging in Beech litter in Mousells Wood. An occasional species, it is superficially similar in appearance to the genus Mycena (the Bonnets) and has a strange smell not unlike mothballs. The cap colour tends to fade to almost white as it expands and dries out.
Gymnopus dryophilus  by Penny Cullington September 24th Gymnopus dryophilus (Russett Toughshank)

Previously in the genus Collybia, this very common species of the woodland floor was found by Penny Cullington in Mousells Wood. It is usually one of the first woodland mushrooms to appear in Autumn, often in large numbers, but has been conspicuous by its absence in recent weeks. It has a soft rather flexible feel to it, also stem is hollow.
Pseudoinonotus dryadeus   by Sarah Ebdon September 24th Pseudoinonotus dryadeus (Oak Bracket)

Previously in the genus Inonotus, this substantial and occasional species was found by Sarah Ebdon in Lacey Green growing on living Oak, its usual host (though it can rarely occur on Sweet Chestnut). A perennial species, its fine pores below (not visible here) are greyish white and whilst at the growing stage the coloured droplets seen here are typical of the species.

September 23rd 2020

Lactarius acerrimus  by Derek Schafer Lactarius acerrimus  by Derek Schafer September 23rd Lactarius acerrimus (Two spored Milkcap)

This quite rare Milkcap was found by Joanna Dodsworth under Oak at Wotton Park Estate (photo and microscopy Derek Schafer). Nothing much to write home about to look at, the significant features of the species lie below and within! Turn it over to reveal the distinctive distorted and anastomosing (conjoining) gills, rather short stem and a smell of stewed apples! With a scope one notices larger spores than normal for the genus, this brought about by each basidium (spore producing cell) developing just two spores rather than the normal four, a unique feature within the genus. (NB do not infer from the common name that each fruit body only produces two spores! There are thousands of basidia on each gill!)
Amanita echinocephala    by Penny Cullington Amanita echinocephala    by Penny Cullington September 23rd Amanita echinocephala (Solitary Amanita)

Yet another Amanita for our growing list, these three specimens were found (as singletons) by Penny Cullington at Pulpit Hill in very chalky soil - one under Beech and two under Birch. An uncommon species, the Latin name describes the almost prickly scale-like veil patches on the cap which are a diagnostic feature (see second photo) and separate it from, for instance, A. citrina. The cream gills are distinctive also, as are the rather ragged volva (very hard to extricate without damage) and yellowish ring on the stem. The name, however, is in the process of changing to A. solitaria, reflecting the species' solitary habit.

September 22nd 2020

Xerula pudens    by Derek Schafer Xerula pudens    by Derek Schafer Xerula pudens    by Derek Schafer September 22nd Xerula pudens (No common name)

Martin Dodsworth found this rare species, new to the county, at Wotton Park Estate (photo Derek Schafer). Clearly similar to the very common X. radicata which also arises from the roots of deciduous trees, the key difference to note is the finely but densely hairy to velvety stem (see detailed photo). Compare with X. radicata, by chance also dated Sept 22nd.
Hymenopellis radicata by Paul Goby Hymenopellis radicata by Paul Goby Hymenopellis radicata by Paul Goby Hymenopellis radicata by Paul Goby September 22nd Hymenopellis radicata (Rooting Shank)

Its name only recently changed from Xerula radicata, this common woodland species was found in Naphill Common by Paul Goby. It grows on the roots of deciduous trees, most commonly Beech, and though it has a brown cap like so many other mushrooms it has three redeeming features. The cap surface is clearly wrinkled (though less so as it dries out as here) and in moist conditions is sticky, separating it from other lookalikes, also the gills are not only very widely spaced but also pure white (and occasionally lined with a dark edge). The third features is the clincher: once you've recognised the wrinkled brown cap, take care when extracting it to dig down around the tall stem which will be found to extend well below the surface - the root. Only if the host tree root is on the surface will this stem extention be absent. See additional photos (taken Sept 27th) for a more distinctly wrinkled cap and a stem with excavated root.
Inocybe lilacina  by Penny Culington September 22nd Inocybe lilacina (Lilac Fibrecap)

This attractively coloured mushroom was found by Penny Cullington in grass under Lime at Turville Heath. The lilac tones of the species could be mistaken for Laccaria laccata (Amethyst Deceiver) or possibly even Lepista nuda (Wood Blewit), but no other species has this combination of beautiful lilac cap and quite crowded brown gills. The cap rarely exceeds 3cm and the raised slightly brownish umbo in the centre is also typical. It occurs quite commonly under mixed deciduous trees.
Russula farinipes  by Penny Culington September 22nd Russula farinipes (No common name)

Penny found this collection growing in grass under Birch and Lime at Turville Heath. Not really rare but with only a few Bucks records, this is possibly overlooked as the very common R. ochroleuca (Ochre Brittlegill) due to its similar cap colour. However, on careful observation the rather asymmetrical shape and quite widely spaced gills should alert one that it's different. The main feature to note, however, is that the cap cuticle refuses to peel at all and has a rubbery feel - unique amongst the yellow capped Brittegills.
Russula subfoetens  by Penny Culington Russula subfoetens  by Penny Culington September 22nd Russula subfoetens (Stinking Brittlegill)

Penny Cullington found this collection under Birch at Turville Heath. The species belongs to a group of Brittlegills affectionately known as 'the smellie', most of which grow under Oaks though both this one and its lookalike R. foetens occur under a variety of deciduous trees. Both are quite uncommon, have a sour rancid smell, also sticky caps (glutinous in wet weather) - unusual for the genus, and have a dull rusty reaction when rubbed with a crystal of ferrous sulphate on the stem (seen here). The easiest way to split them is to place a drop of KOH on the stem - no reaction with R. foetens but quickly golden in R. subfoetens as seen in the singleton photo.
Hypoxlyon fragiforme  by Paul Goby Hypoxlyon fragiforme  by Peter Davis September 22nd Hypoxlyon fragiforme (Beech Woodwart)

This common ascomycete was found on its typical host, fallen Beech, in Naphill Common by Peter Davis and Paul Goby independently. There are several different species of Woodwart, all pretty similar, and the easiest way to identify them is by knowing which species fruits on which type of wood. This particular species only grows on Beech and the name 'fragiforme' refers to its bumpy surface which is not unlike that of a strawberry (Latin fragaria). It's always found in swarms, sometimes in large quantities and fruitbodies get no bigger than 1cm across. They start out reddish to cocoa brown (see photo 1) and end up almost black when older (see photo 2).

September 21st 2020

Pleurotus cornucopiae  by Paul Goby Pleurotus cornucopiae  by Paul Goby September 21st Pleurotus cornucopiae (Branching Oyster)

Paul Goby found this nice cluster on fallen Beech in Naphill Common. (We do have an earlier photo dated Sept 6th but today's photos are much more typical.) Compared with the much more common P. ostreatus (Oyster Mushroom), caps are white to cream (no darker), fruit bodies tend to cluster tightly together appearing branched, and the decurrent (sloping) gills run further down the stem. Note also the typical yellowing which develops when drying out (seen here). See Paul's photos of P. ostreatus, also dated Sept 21st for comparison.
Lactarius chrysorrheus  by Sarah Ebdon Lactarius chrysorrheus  by Sarah Ebdon September 21st Lactarius chrysorrheus (Yellowdrop Milkcap)

This collection was found by Sarah Ebdon under Oak in Bradenham Wood. An occasional Milkcap, it is only found under Oak as also is the much more common and darker capped L. quietus (Oak Bug Milkcap). Key features are the pale pinkish buff cap with droplet markings, the lack of distinctive smell (unlike L. quietus), but the give-away feature is the milk which, though white at first, if left for a few minutes once exposed on the gills turns bright yellow. See additional photo (taken Sept 27th) for gills where the milk has turned yellow.
Hemileccinum impolitum  by Greg Douglas Hemileccinum impolitum  by Greg Douglas September 21st Hemileccinum impolitum (Iodine Bolete)

Greg Douglas came across this somewhat unusual bolete (previously Boletus impolitus) growing in a grassy path edge under Oak in Little Kingshill. A chunky species with a firm feel to it, the key characters are the pale brown smooth cap (here cracking due to the recent hot sun), very small yellow pores which do not stain blue on pressing and the yellowish stem which tends to taper at the bottom. The common name refers to the unusual smell of iodine which should be checked for if the stem base is cut.
Pleurotus ostreatus  by Paul Goby Pleurotus ostreatus  by Paul Goby Pleurotus ostreatus  by Penny Cullington September 21st Pleurotus ostreatus (Oyster Mushroom)

Paul Goby found this cluster growing on fallen Beech at Naphill Common. The third eye-catching cluster on top of a sawn off stump was found on Oct 01 at Turville Heath, Penny Cullington. Oyster Mushrooms occur most commonly on this substrate but also on other deciduous wood. The clustered habit is typical, also the eccentric (off-centre) stem and decurrent gills (sloping down the stem), both features showing well in the upturned specimen. The cap colour can vary from almost white to quite dark grey, also worth noting is the tendency for the cap edges to turn yellow in age or when very dry. Surprisingly this is a nicely fresh collection considering the recent heat. The cultivated form available in supermarkets is indeed the same species
Russula chloroides  by Sarah Ebdon Russula chloroides  by Sarah Ebdon September 21st Russula chloroides (Blue Band Brittlegill)

Sarah Ebdon found this Brittlegill in Bradenham Wood under mixed deciduous trees. This is one of very few white capped Brittlegills which do not blacken when damaged. It's a large species and extremely similar to a few large white Milkcap species, the sunken centre and sloping gills being a feature they have in common. Damaging the gills and watching for milk is key to determining the genus, but if you notice this beautiful and unique turqoise blue band at the top of the stem (see second photo) then you know you have this particular Brittlegill. It is occasional and usually found under Oak.
Cyanoboletus pulverulentus  by Jesper Launder September 21st Cyanoboletus pulverulentus (Inkstain Bolete)

This uncommon bolete was fruiting under Beech and Hazel in Jordans Village, found by Jesper Launder. Superficially similar to the Xerocomus / ellus group of boletes, it differs in turning instantly deep blue not only where pressed on the yellow pores but also (in common with the Scarletina Bolete) when the flesh is exposed to the air. Rather a dry collection here but nevertheless a nice find.)

September 20th 2020

Lachnum niveum by Barry Webb September 20th Lachnum niveum (a Disco very similar to Snowy Disco)

Barry Webb found these tiny stemmed white discs on rotting fallen Beech in Burnham Beeches. Lachnum is a large Ascomycete genus of tiny fruit bodies, this one less than 1.5 mm tall. There are several common very similar tiny white species which often form large colonies on rotting wood, and to be certain which you have they should be checked with a scope. However, typical of this particular species are the droplets which adhere between the fine hairs on the stem and outer surface of the disc, clearly visible here. So an identification not 100% but likely!
Reticularia lycoperdon  by Paul Goby Reticularia lycoperdon  by Paul Goby September 20th Reticularia lycoperdon (False Puffball)

This slime mould was first noticed by Paul Goby on a Beech log in Naphill Common two days earlier (see first photo) when at the slimy undeveloped stage and still unidentifiable (ie looking exactly like many others). He was surprised to find how different it appeared today! It is only once a slime mould has dried off and taken its final form that spores and other microscopic features reveal its identity. This particular species, forming a round white blob about 4cm across with a skin which breaks down to allow the brown spore mass to disperse, can be named in the field once at this stage.
Gyroporus castaneus  by Jesper Launder September 20th Gyroporus castaneus (Chestnut Bolete)

Jesper Launder found this uncommon bolete under Oaks at Hodgemoor Wood where it occurs fairly regularly. It is one of the easiest boletes to recognise in the field, having a flattish, firm and smooth chestnut brown cap and a stem to match with pale whitish pores which don't blue when pressed. The stem tends to become hollow and if cut lengthways then shows cavities within. It occurs under Oak and Sweet Chestnut.
Mutinus caninus  by Penny Cullington Mutinus caninus  by Paul Goby Mutinus caninus  by Claire Williams September 20th Mutinus caninus (Dog Stinkhorn)

This was found in Pullingshill Wood by Penny Cullington, the smaller specimen unusually actually growing out of the top of a mossy log as seen. Much smaller and also less common than our other Stinkhorn, Phallus impudicus - not yet fruiting much this season, this species usually grows in leaf litter and arises from a white 'egg' which ruptures as the stem expands and develops the dark sticky spore-bearing top which has a smell which attracts flies which then disperse the spores. This smell is insignificant in comparison with the extremely unpleasant smell of P. impudicus which can often be located by following ones nose! (The two later examples are from Bottom Wood, Oct 09, by Paul Goby, and the spear from Tinkers Wood, Oct 10, by Claire Williams.)
Lactarius turpis  by Penny Cullington September 20th Lactarius turpis (Ugly Milkcap)

Penny Cullington found this collection growing under Birch (with which they are host specific) at Pullingshill Wood. The cap colouring and short stem of this common species tend to make it well camouflaged amongst the leaf litter and easily missed. Once a fruit body is turned over the strongly inrolled cap is reminiscent of young specimens of the Brown Rollrim (a completely unrelated species), but the gills are much paler and not decurrent as in that species. Damaging the gills quickly produces copious milk which literally drips from the cap - even today when conditions were extremely dry.
Scleroderma citrina  by Penny Cullington September 20th Scleroderma citrinum (Common Earthball)

This collection was growing under Oak at Pullingshill Wood, found by Penny Cullington. Our second Earthball photo, this species is the easiest in the genus to recognise as it's our only yellow Earthball. These were young specimens, only about 4 cm across, but they can get considerably larger and also considerably more roughened and scalier. Note (a) the thick rindlike skin and (b) the contrasting dark inner part even when young, visible in the specimen cut in half, both features which help to separate Earthballs from Puffballs which have a thin skin and are white inside when young (though do go darker inside when mature). Earthballs have a strong rubbery smell whereas Puffballs have a pleasant 'mushroomy' smell.

September 19th 2020

Inonotus cuticularis  by Penny Cullington Inonotus cuticularis  by Penny Cullington September 19th Inonotus cuticularis (Clustered Bracket)

Penny Cullington found this bracket growing on fallen Beech in Penn Wood. This is quite an uncommon bracket and is unusually soft to the touch with a velvety finely hairy upper surface; it tends to grow in overlapping tiers along the substrate. The fine pores underneath have an olive brown tone which glances in the light and bruises darker when you press it, this seen in the second photo here.
Agaricus arvensis  by Penny Cullington Agaricus arvensis  by Penny Cullington September 19th Agaricus arvensis (Horse Mushroom)

Penny Cullington found this collection in a grassy area in Penn Wood. These were good sized fruit bodies with caps about 12 cm across, and under moister conditions they would have gradually stained yellow where damaged. Today's were too dry and showed little change where I scratched them either on the caps or the stem. Note the free gills and ring on the stem visible in the second photo.
Tylopilus felleus  by Penny Cullington Tylopilus felleus  by Penny Cullington Tylopilus felleus  by Penny Cullington September 19th Tylopilus felleus (Bitter Bolete)

An occasional bolete, this collection was growing under Douglas Fir in Penn Wood, found by Penny Cullington. On first noticing the large caps, about 13 cm across, she thought she'd found Boletus edulis but turning one over revealed the pores turning a shade of pink, especially where damaged, and the marked reticulation on the stem, both features diagnostic of the Bitter Bolete (which, also unlike B. edulis, has a bitter taste as the name suggests). Though under conifer today, it more often occurs under deciduous trees, especially Beech.
Coprinopsis atramentaria  by Penny Cullington September 19th Coprinopsis atramentaria (Common Inkcap)

This collection was found growing in grass at Penn Wood by Penny Cullington. Quite a large Inkcap (the largest caps here were about 5 cm across), it quickly matures and then deliquesces (dissolves into a black mess). The two older fruit bodies either side were well passed their sell-by date and left Penny's hands suitably black.
Scleroderma verrucosum  by Paul Goby Scleroderma verrucosum  by Pennu Cullington September 19th Scleroderma verrucosum (Scaly Earthball)

Our first Earthballs of the season, this collection was found by Paul Goby in Naphill Common growing in soil under mixed trees. Often mistaken for Puffballs, there are three common species of Earthball, all associating with deciduous trees. Differences to look for: Earth balls are never white when young, are either yellowish or brown from the start and have a thick tough outer skin, usually roughened or scaly, are not pear-shaped and are dark inside (if cut open), not white - even when young, and are generally less regular in shape. S. verrrucosum has a distinct stem, seen here in the second photo (taken on Sept 28th by Penny Cullington) which also shows how Earthballs split open when mature to disperse their spores (see LH fruit body). (Those with sharp eyes will notice the dead Holly leaf - top right - with little black spots. These are the ascomycete Phacidium lauri, previously P. multivalve.)

September 18th 2020

Pluteus cervinus  by Paul Goby Pluteus cervinus  by Paul Goby Pluteus cervinus  by Paul Goby September 18th Pluteus cervinus (Deer Shield)

This genus has been conspicuous by its absence so far this season. Paul Goby found this specimen growing on soggy rotting wood in Naphill Common. The commonest of about 20 species of Shield, all of which need wood in some form on which to grow, it displays well the diagnostic features of the genus: crowded convex gills which start pale but gradually turn pink, also the lack of gill attachment to the top of the stem (called 'free'), a character shared also by Agaricus, Amanita and Lepiota & related genera. The cap of today's singleton was about 10 cm across. Note the free gills visible when the fruit body was split, also their pinkish colour and shape when it was upturned.
Fuligo septica var. flava  by Paul Goby Fuligo septica var. flava  by Penny Cullington September 18th Fuligo septica var. flava (Scrambled Egg Slime Mould)

Our first Slime Mould photo of the season, this bright patch of yellow, about 3 cm across, caught Paul Goby's eye at Naphill Common, fruiting on fallen Beech. Slime Moulds (Myxomycetes) are in fact not fungi but are a Kingdom in their own right. However, mycologists tend to treat them as honorary fungi and record them. Very few slime moulds have common names, but this one is very apt. Few are nameable when at the early 'slimy' stage but this species is one of the exceptions: the dazzling yellow colour when fresh and in good condition is unmistakable. A second example (from Mousells Wood, Sept 24 from Penny Cullington) is included.
Amanita virosa  by Penny Cullington Amanita virosa  by Penny Cullington September 18th Amanita virosa (Destroying Angel)

This distinctly northern species is known from extremely few sites in S. England, and was found today, new to the county, at Hodgemoor Wood by Paul Cullington under Beech (photos Penny Cullington) - the find of the season so far for Penny. This Amanita has a pure white cap which is smooth, silky and sticky (unusual for the genus), a stem with a large white ring (not yet visible here) and a large white floppy fragile volva (much in evidence here). This immature singleton had no gills visible and on close inspection they were covered by the ring which still adhered to the cap and had not yet dropped to the stem. The definitive test to confirm the identity of this rarity (quite frequently claimed but practically always in error for A. citrina, particularly the completely white form of that species) is to place a drop of the chemical reagent KOH on the cap which uniquely turns instantly bright yellow (see second photo for the proof!). (See also A. citrina for comparison, dated today.) THIS SPECIES IS DEADLY POISONOUS
Amanita crocea  by Penny Cullington September 18th Amanita crocea (Orange Grisette)

It's always a delight to find this beautiful species which was today growing under Birch at Hodgemoor Wood found by Penny Cullington. Similar in shape to a large Amanita fulva, this Amanita has a cap of saffron-orange, darker at the centre and finely striate at the edge where paler, cream gills and a graceful stem lacking a ring but with faint saffron flocks and a large white floppy loose volva, easily damaged on collection. It is host specific with Birch though apparently occasionally found under Beech.
Amanita citrina  by Penny Cullington September 18th Amanita citrina (False Deathcap)

One of our commonest Amanitas, this has been in evidence in several woods recently but usually somewhat shrivelled in the heat. At Hodgemoor Wood Penny Cullington found some reasonably fresh fruit bodies growing under Beech. Note the lemon yellow caps with hint of green typically having flecks of veil which rub off easily, the white gills and stem with a skirtlike ring and prominent bulblike volva at the base. The acidic and striking smell of potato peelings of this species is particularly significant because it serves to separate the species from the two deadly species with which it can at times appear very similar. Note here the largest LH cap which has greenish tones and no veil flecks, appearing extremely reminiscent of the Deathcap (very common at the moment). However, that species has a sweet sickly honey-like smell, also a volva with a clear gutter (see photo dated 13th). The Destroying Angel (equally deadly but extremely rare in the south) has a similar smell to Deathcap (but see more on this species, dated today!)
Gymnopilus junonius  by Penny Cullington September 18th Gymnopilus junonius (Spectacular Rustgill)

Paul Cullington found this beautiful fresh young cluster growing on submerged roots of Beech in Hodgemoor Wood (photo Penny Cullington). The largest cap here was about 4cm across but when fully expanded the cap can get to 15cm or more. Note the rusty gills and very distinctive ring on the stem, also the lack of really distinct scales on the cap which if present would point to the similar genus Pholiota, often large and fruiting in clusters at the base of trees. This species occurs on dead wood or roots of deciduous trees.
Lactarius torminosus  by Penny Cullington Lactarius torminosus  by Penny Cullington September 18th Lactarius torminosus (Woolly Milkcap)

Penny Cullington found this attractive species in Hodgemoor Wood under Birch with which it is host specific. Once you've realised this is a Milkcap (by damaging the gills and watching for the milk) this is an easy Milkcap to identify with several distinguishing features: Firstly the host tree, then the pink zoned cap with rather rough surface, then if a young specimen is available note the tightly inrolled and hairy cap margin when viewed from underneath. All these features are visible here except for the milk on the gills! This can happen when conditions are just too dry. There is a similar Milkcap with nearly all the same features (also host specific with Birch) to be aware of: L. pubescens. This, however, is very pale pink with less zoning apparent.
Russula nigricans  by Penny Cullington September 18th Russula nigricans (Blackening Brittlegill)

A common Brittlegill usually but not exclusively under deciduous trees, this collection was found by Penny Cullington at Hodgemoor Wood under Beech, its commonest host. This is a large and solid Brittlegill, getting to 15cm across or more. It starts out with a whitish cap but soon darkens, eventually ending up entirely black (hence the common name). It has the widest spaced gills in the genus - a key feature especially as there are several others which look superficially similar from above but have crowded gills. If you collect one, break it open, retaining it for 15 to 30 minutes, and watch the damaged flesh turn first red and then gradually black.
Tricholoma fulvum  by Penny Cullington September 18th Tricholoma fulvum (Birch Knight)

Our first Knight of the season, this was found by Penny Cullington at Hodgemoor Wood under Birch with which it is host specific. Features to note as well as the host tree nearby: the fulvous brown smooth cap, pale yellow gills and a brownish stem which if broken open reveals pale yellow flesh and becomes hollow as it matures. It is quite common wherever Birch occurs.
Fomitopsis betulina  by Penny Cullington September 18th Fomitopsis betulina (Birch Bracket)

A very common bracket wherever there are Birches, with which it is host specific, this was found by Penny Cullington on a fallen Birch log in Hodgemoor Wood. Much more familiar by its older name of Piptoporus betulinus, it has tiny white pores underneath and grows on both fallen and living trunks and branches and is one of the easiest fungi to recognise.
Xerocomellus engelii  by Penny Cullington Xerocomellus engelii  by Penny Cullington September 18th Hortiboletus engelii (No common name

Penny Cullington found this collection under Oak at Hodgemoor Wood. Previously known as Boletus (also Xerocomus) communis, it is closely related and extremely similar to a range of tricky boletes which many mycologists now shy away from naming to species. The name Red Cracked Bolete of old is not necessarily Xerocomellus chrysenteron as many think: several other species can develop a similar cracked cap, including today's species. Furthermore, blueing pores and flesh are helpful pointers but in themselves are not sufficient to ascertain the species. H. engelii, despite having no common name, is a common species under Oak, the cap is often flat and café-au-lait in colour. If sliced lengthways the stem base shows varying degrees of orange as dots or patches - a feature which helps to separate it from others. Penny felt sufficiently happy about this particular determination but, as many of you know, she regularly declines to commit to a specific name with this group of mushrooms
Gymnopus fusipes  by Penny Cullington September 18th Gymnopus fusipes (Spindle Toughshank)

Better known as Collybia fusipes, this was fruiting in abundance at the base of Oaks in Hodgemoor Wood and found by Penny Cullington. It's not uncommon in mature woodlands and also occurs under Beech. The species name translated is a useful character, ie the stem bases tend to fuse together (as seen on the left here) and this character together with the fulvous brown caps and tightly clustered habit are the main clues to its identity.

September 17th 2020

Russula vesca  by Penny Cullington Russula vesca  by Penny Cullington Russula vesca  by Penny Cullington September 17th Russula vesca (The Flirt)

Penny Cullington found this surprisingly fresh singleton under Oak at Cadmore End. Yet another red capped Brittlegill, this one is described as the colour of smoked gammon though the caps can sometimes be much paler than this particular singleton specimen. (See third photo of a collection found two days later in Penn Wood.) Another useful field clue to look for is the way the cap cuticle (coloured surface) starts to retract at the margin, increasingly with age, thus leaving a thin white rim where the gills show through - hence its imaginative common name suggesting a lady saucily showing her white petticoat! A more technical feature: a crystal of Ferrous Sulphate rubbed on both stem and gills quickly turns intensely smoked salmon pink (only one other species reacts like this but it has a green cap - R. heterophylla). Both the petticoat effect and the crystal reaction are visible in the second and third photos. (Remember: smoked gammon and smoked salmon!)

September 16th 2020

Cortinarius alboviolaceus  by Jesper Launder September 16th Cortinarius alboviolaceus (Pearly Webcap)

This young collection was just emerging under Beech at Hodgemoor Wood, found by Jesper Launder. This is one of the trickiest and largest genera with over 600 species known in the UK and many more still to be identified. Relatively few are nameable in the field but this is one, being evenly bluish white all over with a silky dry cap. Note the meshlike 'cortina' joining cap to stem in the middle specimen but just breaking away on the LH specimen to reveal the rusty gills and spores. If cut open this species has violaceous flesh throughout. It is uncommon and found in mixed deciduous woodland.
Russula grisea  by Jesper Launder September 16th Russula grisea (No common name)

Jesper Launder found this beautiful collection in Jordans Village growing under Hornbeam. This species is one of several common Brittlegills which frequent deciduous woods and have caps a mix of pink, lilac and green tones together with pale cream gills and white stem. Consequently they are not easy to separate in the field with any certainty. Using chemical tools, as Jesper has on the top right specimen, is the best way: A crystal of Ferrous Sulphate rubbed on the stem in most Brittlegills turns varying degrees of rusty orange. (See also comments on R. vesca dated Sept 17th). R. grisea has the strongest almost pink reaction of the three species with similar cap colours (the fourth, R. cyanoxantha, reacts hardly at all and if so turns pale greyish green). The blue stain on the top right specimen has been caused by testing with a drop of Guaiac - another very positive reaction.
Hygrocybe quieta  by Jesper Launder September 16th Hygrocybe quieta (Oily Waxcap)

This collection was found by Jesper Launder in a grassy patch in Hodgemoor Wood. A typical brightly coloured waxcap, this species is not always easy to separate from others. The yellowish caps combined with orange gills and stem are good characters, but the smell if detected is the clincher in the field and gives rise to the common name. If your bruise the flesh or cut it, it has a distinctive oily rubbery smell very similar to Lactarius quietus (Oak Bug Milkcap) - not helpful, of course, unless you are familiar with that species!
Coprinus comatus  by Greg Douglas September 16th Coprinus comatus (Shaggy Inkcap / Lawyer's Wig)

Greg Douglas found this instantly recognisable Inkcap species growing in litter in Widmore Wood. The two apt common names describe it well though like many of the genus it quickly deteriorates and within 24 hours ends up as a black puddle!
Macrolepiota konradii  by Penny Cullungton Macrolepiota konradii  by Paul Goby September 16th Macrolepiota konradii (No common name)

This nice collection was found in Penn Wood in grassy litter by Penny Cullington. Clearly similar to M. procera (Parasol) having the same snakeskin stem markings with mobile ring and swollen base, the cap has distinctly different markings. Note the smooth darker central zone which becomes torn with much paler barely scaly outer half. (The second photo shows another example, cap 17 cm across, found by Paul Goby in Naphill Common two days later.) However, compare with M. mastoidea (photo dated Sept 10th) and characterised by its prominent nipple-like central umbo - a feature not found in other species of this genus. Some authorities claim that M. konradii should be synonymised with M. mastoidea, but as M. konradii (as photoed here) appears to be almost the commonest of the genus in this area, Penny wishes to continue recording it under that name until definitely proven incorrect!
Kuehneromyces mutabilis  by Penny Cullungton Kuehneromyces mutabilis  by Penny Cullungton Kuehneromyces mutabilis  by Penny Cullungton September 16th Kuehneromyces mutabilis (Sheathed Woodtuft / Two-tone Pholiota)

This typical dense cluster was found growing on fallen deciduous wood in Penn Wood by Penny Cullington. An attractive species, it quickly develops the two-tone effect with a paler central zone as it dries out - a key character. That together with the stem having a ring zone and the clustered habit on deciduous wood make it quite an easy species to recognise. (It is in fact close to the genus Galerina and not the genus Pholiota, hence its relatively new common name, though it seems a shame not to have retained the descriptive 'Two-tone' in the name.) Photo 2 and 3, taken exactly a month later at Pulpit Hill, show fruit bodies in damp conditions before the two-tone effect has developed, also detail of the ring zone on the stem.
Lycoperdon perlatum  by Penny Cullungton September 16th Lycoperdon perlatum (Common Puffball)

One of our commonest woodland fungi, this collection of fresh material was found by Penny Cullington in litter under Beech in Penn Wood. Note the pyramidal warts covering the surface, a feature missing from the Stump Puffball - our other really common woodland species (see photo dated Sept 13th for comparison). These warts rub off easily, leaving a meshlike pattern beneath. Though white when young, the fruit bodies turn gradually pale then darker brown when reaching the spore-puffing stage.
Hypholoma fasciculare  by Penny Cullungton Hypholoma fasciculare  by Penny Cullungton September 16th Hypholoma fasciculare (Sulphur Tuft)

This very common species seems to have only just started fruiting around here this season - both collections here were found on and around fallen wood by Penny Cullington in Penn Wood. Usually growing clustered and never far from some sort of wood, this is a species which will fruit at any time of year on many different types of wood. These two collections look superficially like two different species. Like many dark-spored mushrooms, when young the gills can be pale (sulphur yellow in this case) and only darken as the mature spores develop and then start falling. Note also in the mature specimens the cap edge which typically develops black patches. THIS SPECIES IS VERY POISONOUS!
Suillus grevillei  by Penny Cullungton September 16th Suillus grevillei (Larch Bolete)

This collection was found by Penny Cullington under Larch at Penn Wood. Our previous photo (dated Sept 7th) was of a singleton specimen so today's varied collection, showing young specimens with the ring still unformed and thus hampering one from deciding upon gills or pores at this stage, is worth including. Prior to finding the mature specimens here and because the cap underside was still concealed, it was suspected that this was possibly a species of Gymnopilus (which has gills). All was revealed once a specimen with pores was found and the Larch substrate noted.
Russula aurora  by Penny Cullungton September 16th Russula aurora (Dawn Brittlegill)

Not to be confused with the similarly named and rare R. aurea (see photo dated Sept 13th), this fairly common Brittlegill was found in Penn Wood under Beech by John Catterson and Penny Cullington. Yet another species with red tones in the cap, this one has peach pink tones with a paler cream centre which is often slightly sunken. It has a pure white rather fragile stem and the gills are pale cream. (In some texts this is named Russula velutipes to add to the confusion!)
Russula ochroleuca  by Penny Cullungton September 16th Russula ochroleuca (Ochre Brittlegill)

Probably our commonest Brittlegill, this collection was made at Penn Wood by Penny Cullington under mixed deciduous trees. This is not a fussy species and occurs under many trees, both deciduous and coniferous. Note the cap is rather dirty yellow with ochre tones in contrast to the bright yellow R. claroflava (see yesterday's photo). Another yellow species with which it is often confused is R. fellea (Geranium Brittlegill, host specific with Beech and not yet spotted this season). Note the white gills and stem of R. ochroleuca which clearly contrast with its cap colour, also it has no noticeable smell; in R. fellea the gills and stem are cream, not white, offering little contrast with the cap, also it has a sweet smell of stewed apple or Pelargonium leaves - hence its common name.

September 15th 2020

Rhodocollybia maculata  by Penny Cullungton September 15th Rhodocollybia maculata (Spotted Toughshank / Cocoa Spot)

Penny Cullington found a large patch of this quite common species fruiting under Pine at Burnham Beeches. More familiar as Collybia maculata, its key characters are the white cap which develops chocolate spots as it matures (hence its older but more descriptive common name), its very crowded and tightly packed white gills and the rubbery flexible stem typical of what used to be the genus Collybia (now split into either Rhodocollybia or Gymnopus). It mostly occurs under Pine but also under deciduous trees.
Butyriboletus appendiculatus  by Penny Cullungton Butyriboletus appendiculatus  by Penny Cullungton September 15th Butyriboletus appendiculatus (Oak Bolete)

This quite rare bolete (previously in the genus Boletus) was found by Penny Cullington under Beech at Burnham Beeches where it appears to be new for the site. This is a firm fleshed bolete, as in B. edulis, with a brown cap, very small yellow pores which blue when pressed and a cylindrical yellow stem marked with a fine concolorous network and darker brownish towards the often rooting base. Though the common name might suggest otherwise, this species can apparently occur under Oak, Beech (as here), Lime and Hornbeam.
Leccinum aurantiacum  by Penny Cullungton Leccinum aurantiacum  by Penny Cullungton Leccinum aurantiacum  by Penny Cullungton September 15th Leccinum aurantiacum (Orange Bolete)

One of the few species of Leccinum to grow with trees other than Birch, this species was found under Oak at Burnham Beeches by Penny Cullington. The foxy orange cap with rather uneven but firm surface together with the occurrence under Oak or Poplar separate it from other Leccinum species. The species has the typical pale pores and stem with dark scabers which characterise the genus though in this case the scabers are tinged with the foxy orange cap colour. An occasional species but not rare. (Note in the third photo the typical blue green staining at the stem base where eaten by slugs, a feature which can occur in this and a few others in the genus - this specimen found at Stoke Common, Sept 25th.)
Imleria badia  by Penny Cullungton September 15th Imleria badia (Bay Bolete)

More familiar as Boletus badius, this common bolete was found under Birch and Pine at Burnham Beeches by Penny Cullington. It has a smooth brown cap which can be sticky when moist, lemon yellow pores which turn blue instantly when pressed and a cylindrical stem with similar brown colours to the cap. The stem colour and lack of cracking of the cap together with the instant blueing are usually sufficient characters to make an identification in this difficult group of species, many of which appear superficially extremely similar.
Amanita fulva  by Penny Cullungton September 15th Amanita fulva (Tawny Grisette)

This common species was widespread today under mixed deciduous trees at Burnham Beeches, found by Penny Cullington. A delicate Amanita, the stem tapers upwards, lacks a ring and has a flimsy volva which is easily damaged on collection and is tinged with the fulvous brown of the cap. The cap is shiny, has a striate edge and can sometimes have remnants of white veil (not seen in the photo here). There are other less common but similar species of Amanita which lack a ring; note the intense cap colour, brown tints on the volva and lack of markings on the stem to separate this particular species.
Paxillus involutus  by Penny Cullungton September 15th Paxillus involutus (Brown Rollrim)

One of our commonest woodland mushrooms, this is just beginning to appear now and was found at Burnham Beeches under Birch by Penny Cullington. It is sometimes not easy to distinguish from other brown capped mushrooms because the diagnostic tightly inrolled cap margin of the species is gradually lost as it expands - eventually completely lost as seen in the upturned specimen. Look for young fruitbodies, therefore, and also note the decurrent gills and brown bruising which occurs when damaged. This species can sometimes get very large with caps up to 15 cm across or more.
Fomes fomentarius  by Penny Cullungton September 15th Fomes fomentarius (Hoof Fungus)

Penny Cullington found this aptly named and quite rare bracket growing on fallen Birch at Burnham Beeches. A few years ago this species was hardly known in the south though was quite common in Scotland and N. England - always on Birch. It now seems to be spreading rapidly south and is recorded from several sites in the county but is still considered a rarity.
Russula velenovskyi  by Penny Cullungton September 15th Russula velenovskyi (Coral Brittlegill)

Penny Cullington found this collection under mixed deciduous trees at Burnham Beeches. One of the many red-capped Brittlegills, the cap of this species has subtle brick to orange or coral red tones and is usually distinctly paler in the centre where often slightly domed. Note also the slight pink flush on the stem sometimes present and seen here on the central young specimen. It is fairly common under deciduous trees, particularly Oak.
Russula aeruginea  by Penny Cullungton September 15th Russula aeruginea (Green Brittlegill)

Penny Cullington found this collection under Birch at Burnham Beeches. There are several green-capped Brittlegills which are quite common in deciduous woodland. Characters to look out for in this species are the rusty spots which can usually be found on the cap (here seen on the immature specimen) and the cream rather crumbly gills. The somewhat similar R. heterophylla (Greasy Green Brittlegill) has much more flexible gills, but the safest way to split them in the field is by rubbing a Ferrous Sulphate crystal on the stem which turns it weakly rusty in R. aeruginea (seen on the upturned specimen) but instantly strongly salmon pink in R. heterophylla.
Russula claroflava  by Penny Cullington Russula claroflava  by Penny Cullungton September 15th Russula claroflava (Yellow Swamp Brittlegill)

Penny Cullington found this collection under Birch (with which the species is host specific) at Burnham Beeches. There are several yellow capped Brittlegills but this species is by far the brightest yellow and should not be confused with others, particularly with R. ochroleuca (Ochre Brittlegill) which is our commonest yellow species. If you think you've found R. claroflava, scratch the stem and within an hour or two the scratch will turn first pinkish and then grey-black - this is the only yellow species to show this colour change (see second photo).
Trametes gibbosa  by Paul Goby Trametes gibbosa  by Paul Goby September 15th Trametes gibbosa (Lumpy Bracket)

Paul Goby found this common bracket on the end of a felled Beech trunk in Naphill Common. The pale zoning on the top is typical, also the green algi which is just beginning to develop (often a useful clue to identification). The flesh is extremely tough making it difficult to remove from the substrate and the pores below have a maze-like almost gill-like appearance, visible in the piece Paul cut off to show this diagnostic feature.
Coprinopsis picacea  by Toni Standing September 15th Coprinopsis picacea (Magpie Inkcap)

This is perhaps our largest and most distinctive Inkcap in appearance and was found by Toni Standing in deciduous litter in Bradenham Wood. The common name is apt, describing the large white patches of veil which adhere to the dark cap beneath, and it has a thick sturdy stem with a somewhat swollen base, also a very nasty smell. By the next day the cap would have been deliquescing with drops of black 'ink' dripping from its upturned cap margin.
Cortinarius collocandoides  by Margaret Bolton Cortinarius collocandoides  by Margaret Bolton Cortinarius collocandoides  by Margaret Bolton September 15th Cortinarius collocandoides (Bruising Webcap)

Our first Webcap of the season, this beautiful fungus was found under Beech in Moorend Common by Margaret Bolton where it comes up every year and has been previously identified by expert Geoffrey Kibby. Note the rusty spores of the genus visible both on the mature gills and where they've typically fallen onto the stem, also the 'cortina' (weblike mesh of fibrils) which join the cap to the stem before it expands - visible in the very young specimens. Finally note the purple stem flesh of this species when damaged (hence the name 'bruising') and visible in the largest upright specimen.

September 13th 2020

Ramaria flava  by Andrew Padmore Ramaria flava  by Andrew Padmore September 13th Ramaria flava (no common name)

Richard Fortey found this very rare coral fungus in litter under Beech at Pullingshill Wood (photo Andrew Padmore), a new species for Bucks with extremely few recent records in the UK. We commonly find Ramaria stricta (Upright Coral) in our woodlands and can identify it in the field but seldom find other species of the genus, all of which need careful work with a scope to identify here undertaken by Richard.
Amanita ceciliae  by Penny Cullington Amanita ceciliae  by Sarah Ebdon Amanita ceciliae  by Sarah Ebdon September 13th Amanita ceciliae (Snakeskin Grisette)

This quite uncommon Amanita has turned up in several sites this week though often as singletons. Here we have a doubleton from Rushbeds Wood growing under Hazel (Penny Cullington, Sept 10th) and a singleton from Bradenham Wood under Beech (Sarah Ebdon, Sept 13th). This is one of a group of Amanita species which lack a ring and have crumbly easily collapsible volvas at the stem base. A. ceciliae has notably large dark greyish veil patches on the cap, the grey tones also developing on the lower stem and volva as it matures.
Xylaria polymorpha  by Penny Cullington September 13th Xylaria polymorpha (Dead Man's Fingers)

Penny Cullington found this young collection of fruit bodies growing on fallen Beech at Pullingshill Wood. A common ascomycete, though very different from the softer fleshed cup fungi which are also in this Order of fungi, the solid black fruit bodies are covered with tiny ostioles (holes) through which the spores are forcibly expelled. The white structure within can be seen on the right hand fruit body which has been split open.
Mucidula mucida  by Sarah Ebdon Mucidula mucida  by Paul Goby September 13th Mucidula mucida (Porcelain Fungus)

This beautiful and common species (the genus name of which has only recently changed from Oudemansiella) was found on Beech in Naphill Common independently by Sarah Ebdon and Paul Goby. Sarah's photo shows how when viewed from below the cap is almost translucent (like porcelain), the gills are widely spaced and the ring is grey. Paul's photo shows another key feature: the slimy coating on the cap. It occurs on both fallen and living Beech, often way up in the canopy, and can cause problems with identification when mature specimens fall from a height to the ground and thus appear to be ground dwelling rather than wood dwelling.
Lactarius blennius  by Penny Cullington September 13th Lactarius blennius (Beech Milkcap)

This collection was found by Penny Cullington under Beech in Pullingshill Wood. One of our commonest milkcaps and host specific to Beech, it is easy to recognise if one notes the darker droplet-like blotches on the pale olive grey background - however, they are not always as obvious as in these specimens. Note also the cream gills with (usually) copious milk which turns greenish olive as it dries - this can take anything from a few minutes to half an hour.
Rubroboletus legaliae  by Richard Fortey Rubroboletus legaliae  by Richard Fortey September 13th Rubroboletus legaliae (no common name)

A rare species of bolete (previously in Boletus), this was found by Richard Fortey under Beech / Oak in Pullingshill Wood, then shown to Penny Cullington for whom it was a new species - new to Bucks. As the Latin name suggests, this is another bolete having unusually coloured pores and is very similar to (possibly sometimes mistaken for) the even rarer Rubroboletus satanas (Devil's Bolete). The pale ivory cap tends to develop pink tones (these became apparent after collection) - not present in R. satanas, the gills have orange tones rather than red and the stem is less clavate in shape - prominently clavate in R. satanas.
Russula aurea  by Penny Cullington Russula aurea  by Penny Cullington September 13th Russula aurea (Gilded Brittlegill)

This rare and stunning Brittlegill, new to Bucks, was found under Beech at Pullingshill Wood by Penny Cullington (for whom it was new). Unmistakeable in the field, the intensely bright cap colour together with gill edges flushed golden yellow (a unique feature in the genus) alert one straight away that this is something unusual. The stem tends to flush yellow also. Sadly there was only one specimen.

September 12th 2020

Fistulina hepatica  by Paul Goby Fistulina hepatica  by Paul Goby September 12th Fistulina hepatica (Beefsteak Fungus)

This unusually double-headed specimen was found on a Beech log in Naphill Common by Paul Goby. Often fruiting at this time, the species is more commonly found on living Oak. The two views seen here were taken from directly above and directly below the specimen, the fine pores visible on the underside being the fertile surface from which the spores drop.
Otidea alutacea  by Penny Cullington September 12th Otidea alutacea (Tan Ear)

Mistaken in the field for a species of Peziza, this collection was found under Lime at Turville Heath by Penny Cullington and the genus was not apparent until examined with a scope. . As the tell tale field difference between the two genera was not obvious (i.e. the split on one side, missing in Peziza) it was assumed that here were two adjacent specimens of Peziza. Not so. Spore shape, size and smoothness together with other microscopic clues eliminated Peziza, and on closer inspection the somewhat obscure split in fact can be seen.
Amanita muscaria  by Penny Cullington September 12th Amanita muscaria (Fly Agaric) with Chalciporus piperatus (Peppery Bolete)

These two species were found fruiting together under Birch at Turville Heath by Penny Cullington. An easily recognisable Amanita (and one of our most familiar fungi) it grows under Birch (and very occasionally under other trees) and is quite often found close together with this particular bolete as here. However, C. piperatus can also be found fruiting separately under other trees. Note its soft brown cap, cinnamon brown pores and bright lemon flesh in the lower stem - all good field characters. Amanita muscaria is DANGEROUSLY POISONOUS .
Lactarius quietus  by John Catterson September 12th Lactarius quietus (Oak Bug Milkcap)

One of our commonest Milkcaps, this species was found by John Catterson fruiting under Oak, its host tree, at The Common, Cadmore End. Once you've noted that it's a Milkcap in the field by the presence of milk when damaged, the zoning markings on the cap, its distinctive oily rubbery smell and occurrence only under Oak are all good characters to separate the species from the many others in the genus, all of which are found under trees. The smell is one worth getting to know as it occurs not just in other Milkcaps but also in other fungi and is thus used in descriptions as the 'quietus smell'.

September 11th 2020

Bisporella citrina  by Sarah Ebdon September 11th Bisporella citrina (Lemon Disco)

Sarah Ebdon found this colony of tiny cups on rotting fallen deciduous wood in Kings Wood, Tylers Green. Quite a common ascomycete, each cup is no more than 3 mm across but despite its size, because of its bright colour and habit of forming large closely-knit clusters it it often easy to spot from a distance.
Leucoagaricus leucothites  by Sarah Ebdon September 11th Leucoagaricus leucothites (White Dapperling)

This collection was found on the lawn of a private garden in Tylers Green by Sarah Ebdon. It is a species easily mistaken for an Agaricus until one notes that the gills remain white or palest pink in age whereas the gills in Agaricus turn gradually darker as it matures and end up purple-black. One could also mistake it for an Amanita with its white free gills and ringed stem having a slightly swollen base. However, the white capped species of Amanita all have a distinct volva with a rim, not present here, also the ring on the Leucoagaricus is mobile (i.e. can be moved up or down), not so in Amanita. This is a grassland species (also unlike Amanita), in some years quite common, in others much less so.
Mycena pelianthina  by Penny Cullington Coprinellus micaceus  by Penny Cullington September 11th Mycena pelianthina (Blackedge Bonnet)

A somewhat nondescript and quite common species, this Bonnet has one redeeming and unique feature visible in the close-up photo: the edges of the gills are lined with (not black but) dark purple. It was found by Penny Cullington in Kingswood, Tylers Green in Beech litter. It is closely related to the even more common M. pura and M. rosea, both of which inhabit the same substrate; all three species have a sharp smell described as similar to that of radish.
Coprinellus micaceus  by Penny Cullington Coprinellus micaceus  by Penny Cullington September 11th Coprinellus micaceus (Glistening Inkcap)

This was found by Penny Cullington in Kingswood, Tylers Green, and is probably the commonest of all the Inkcaps. It grows on or very near wood or roots and the 'glistening' in the name comes from the tiny flecks of white (called veil) which cover the upper cap surface though rain often washes them off. Note the typical striations (fine grooves) which characterise the cap and the dark gills (less dark in the younger specimens). Like many Inkcaps, if collected in a pot it will turn into a black inky mess in a few hours, a process called deliquessing.
Amanita phalloides  by Penny Cullington September 11th Amanita phalloides (Deathcap)

This collection was found under Beech in Kingswood, Tylers Green by Penny Cullington. As its common name suggests, THIS SPECIES IS DEADLY POISONOUS but is relatively common in our Beechwoods. Some species of Russula can have a similar green cap and white gills but never have a ringed stem or a large volva with a clear gutter around it at the stem base. The ring on the broken specimen in this photo has remained adhered to cap edge rather than to the stem.
Amanita pantherina  by Penny Cullington September 11th Amanita pantherina (Panthercap)

This collection was found under Beech in Kingswood, Tylers Green by Penny Cullington and later carefully checked to ensure that it was not the common A. excelsa which is often misnamed as this species. Differences to look out for: the cap veil patches are white, not grey as in A. excelsa and more regularly spaced; the ring is lower down the stem and smooth with no striations (fine lines) as in A. excelsa; the flowerpot-like volva at the stem base has a clear rim and above this are some fleecy remains, all features differing from A. excelsa. The clincher: the spores do not stain blue with Melzers reagent but do so in A. excelsa. THIS SPECIES IS DANGEROUSLY POISONOUS.
Lycoperdon echinatum  by Penny Cullington
Lycoperdon species  by Penny Cullington
September 11th Lycoperdon echinatum (Spiny Puffball) Lycoperdon pyriforme (Stump Puffball)

Two for the price of one here, found by Penny Cullington. They were growing near together in Kingswood, Tylers Green and then placed adjacent to allow comparison. The extremely common Stump Puffball has a smooth pale surface and is usually visibly on wood (though in a path on submerged roots here). The rare Spiny Puffball is larger, darker and has strikingly long spines forming pyramids and grows in deciduous litter (as do two much much more common Puffball species, L. perlatum and L. foetidum, which hopefully will appear and be described in due course).
Megacollybia platyphylla  by John Catterson September 11th Megacollybia platyphylla (Whitelaced Shank)

John Catterson found good examples of this common species in Tinkers Wood in Beech litter. One of several woodland species having similar dull brown caps, this one is easy to identify if you probe into the litter at its base (as John did) to reveal the long white strings of mycelium which are attached - a unique feature. That together with the cream rather widely spaced gills are good characters in the field.
Humaria hemisphaerica & Craterellus  by Sarah Ebdon September 11th Humaria hemisphaerica (Glazed Cup) with Craterellus cornucopioides (Horn of Plenty)

Two for the price of one in Bradenham Woods found by Sarah Ebdon September 9th. The cups in the foreground are similar to the genus Peziza but have a fringe of fine hairs around the rim and on the outer surface. They are found in damp woody litter. The Horn of Plenty is quite common in deciduous woodland but is easily missed among the surrounding litter. It seems to prefer sloping ground.
Boletus edulis  by Sarah Ebdon
Boletus edulis  by Sarah Ebdon
September 11th Boletus edulis (Penny Bun / Cep / Porcini)

Two separate collections of a species which seems to be fruiting well at the moment: the singleton is from Bradenham Woods and the doubleton from nearby Naphill Common a week earlier by Sarah Ebdon. One of very few boletes which still retain the genus name Boletus, it has pores which don't stain blue when pressed and that often become yellow as it matures.

September 10th 2020

Rhodocybe gemina  by Penny Cullington September 10th Rhodocybe gemina (Tan Pinkgill)

Penny found several collections of this sometimes rare species at Rushbeds Wood growing beside a path in grassy soil. It has 'good years' but in other years is hardly recorded at all though it seems to turn up quite frequently at this particular site. So it's one to look out for locally at the moment.
Lactarius pyrogalus  by Penny Cullington September 10th Lactarius pyrogalus (Fiery Milkcap)

Host specific with Hazel, this species of Milkcap is one of the hottest tasting in the genus, hence its common name. It was found by Penny Cullington in Rushbeds Wood. Tasting in this genus is a method often used in the field as an identification aid, but luckily this species is easily recognised without the need to burn one's mouth if one notices the host tree and also its pinkish peach coloured gills. It usually exudes copious milk when damaged, as here.
Lacrymaria lacrymabunda  by Penny Cullington September 10th Lacrymaria lacrymabunda (Weeping Willow)

Penny Cullington found this collection growing in a grassy path at Rushbeds Wood. A common grassland species, in damp weather the dark gills often have droplets, leaving a rather blotchy gill edge as can be seen here - a good field character.
Daedaleopsis confragosa  by Penny Cullington September 10th Daedaleopsis confragosa (Blushing Bracket)

These were nice fresh examples of a very common bracket fungus found by Penny Cullington on fallen Willow at Rushbeds Wood and show the diagnostic pink blush which quickly occurs on the maze-like pores underneath where it was handled. When older or dry this reaction is not visible. This species is most common on Birch and Willow but also occurs on other deciduous fallen wood. The zones of colour on the top surface often contain red - not in today's collection.
Agaricus xanthdermus  by Penny Cullington
Agaricus xanthodermus  by Penny Cullington
September 10th Agaricus xanthodermus (Yellow Stainer)

This was found fruiting in large numbers in Rushbeds Wood by Penny Cullington. There are certainly edible mushrooms around at the moment but this is not one of them and can cause gastric upsets. It can be separated from other very similar species of Agaricus by the tell tale bright chrome yellow stains which develop in seconds when you scratch the very base of the stem; it also has a different inky smell. Many other Mushroom species can show yellow staining elsewhere on the fruitbody but only this one reacts in this way at the stem base.
Psathyrella piluliformis  by John Catterson September 10th Psathyrella piluliformis (Common Stump Brittlestem)

This young fresh material is an example of one of the few species in a difficult genus which can be named in the field, and was found by John Catterson at Coombe Hill fruiting on a deciduous log. Despite the pale gills of this collection, when more mature the gills become blackish brown from the dark spores. It is a common species and often to be found in large colonies on fallen wood.
Boletus reticulatus  by Greg Douglas
Boletus reticulatus  by Greg Douglas
September 10th Boletus reticulatus (Summer Bolete)

Previously B. aestivalis and closely related to B. edulis, this seldom recorded and early-fruiting species was found by Greg Douglas in Captain's Wood, Chesham under Beech. Easily mistaken for B. edulis, it differs in having a cap which tends to disrupt when dry and a stem with a complete rather than partial reticulation (fine network - see second photo for detail).
Macrolepiota mastoidea  by Penny Cullington
Macrolepiota mastoidea  by Penny Cullington
September 10th Macrolepiota mastoidea (Slender Parasol)

Found by Penny Cullington growing at the pathside in Rushbeds Wood, this graceful species is less common than the Parasol and Shaggy Parasol and separated from them by the paler small granular scales on the cap and stem and by the prominent umbo (bump) in the cap centre - like a nipple, hence its common name. There is debate whether the extremely similar M. konradii (which lacks the nipple) is a separate species because intermediates occur where the umbo is hardly prominent at all, but at present both go under the name of M. mastoidea.

September 9th 2020

Hygrocybe conica  by Sarah Ebdon Hygrocybe conica  by Sarah Ebdon September 9th Hygrocybe conica (Blackening Waxcap)

This eye-catching species was found fruiting on the lawn in a private garden in Tylers Green by Sarah Ebdon - yet another early showing of a species which usually fruits mid to late season. So it's worth looking at lawns and grassland for other waxcaps which may well be following suit at the moment.
Russula atropurpurea  by Penny Cullington September 9th Russula atropurpurea (Purple Brittlegill)

One of the commonest species of Brittlegill, this collection was found by Penny Cullington in grass under Oak at The Common, Cadmore End. It fruits under many different deciduous trees and tends towards a purple shade of red with a darker to almost black centre. It can also have yellow patches on the cap. The gills are pale cream and the stem is pure white.
Leccinum scabrum  by Penny Cullington
Leccinum scabrum  by Penny Cullington
September 9th Leccinum scabrum (Brown Birch Bolete)

Perhaps the commonest species of Leccinum, this was found by Penny Cullington in grass under Birch at The Common, Cadmore End. Many of this genus are host specific to Birch as is this one. The blackish 'scabers' in the lower stem though paler at the top, also the unchanging stem flesh colour when cut, are good field characters.

September 8th 2020

Hygrocybe psittacina  by Margaret Bolton September 8th Hygrocybe psittacina (Parrot Waxcap)

Margaret Bolton was surprised to find this specimen so early in the season as most Waxcaps are late season fruiters. It was in unimproved mown grassland in Moor Common.
Coprinellus disseminatus  by Penny Cullington
Coprinellus disseminatus  by Penny Cullington
September 8th Coprinellus disseminatus (Fairy Inkcap)

Penny Cullington found this large troop of fruitbodies growing between the sleepers in the car park at Whiteleaf Cross. The species is common and is often to be found in large numbers on or around stumps or buried wood. It has the appearance of a Mycena (Bonnet) but note the dark gills, a feature of all Inkcaps, in contrast to the white gills of Bonnets.
Laetiporus sulphureus  by Paul Goby Laetiporus sulphureus  by Sarah Ebdon September 8th Laetiporus sulphureus (Chicken of the woods)

Paul Goby found this striking specimen growing on a massive Beech log in Naphill Common. This is a common species of bracket often fruiting in summer or early autumn. It can be found on many different deciduous trees, especially Cherry and Oak, and also is quite often on Yew. The second photo is of the same specimen taken by Sarah Ebdon on August 24th when just developing and clearly very tasty!

September 7th 2020

Suillus grevillei  by John Cowleaze September 7th Suillus grevillei (Larch Bolete)

Found by John Catterson in Cowleaze Wood (just over the county border into Oxfordshire!), this early fruiter occurs exclusively under Larch and is very variable in colour, sometimes yellow-brown as here, sometimes a rich reddish dark brown. It has a sticky cap and a persistent ring on the stem. (S. luteus (Slipperly Jack) also has a ring but lacks red in the brown cap and occurs exclusively under Pine.)
Inocybe cookei  by Penny Cullington September 7th Inocybe cookei (Straw Firecap)

This species, found by Penny Cullington in Mousells Wood under Beech, is a typical member of this large genus, many species of which are not identifiable without recourse to a scope . Fibrecaps often have brown caps with a finely splitting surface, gills which are pale to snuff brown and strange smells.
Mycena haematopus  by Penny Cullington September 7th Mycena haematopus (Burgundydrop Bonnet)

Our first Bonnet of the season, this collection was found by Penny Cullington in Mousells Wood growing on a rotting deciduous log. A typical species of Bonnet, it is easily distinguished from others in the field by its pinkish colours and most notably the dark wine red 'juice' which exudes from the stem where damaged (visible in the central fruitbodies). Do not mistake for Mycena crocata, possibly more common in the Chilterns, which has bright saffron orange juice - both species grow on fallen wood.
Clitopilus prunulus  by Penny Cullington September 7th Clitopilus prunulus (The Miller)

A common early season species, this collection was found by Penny Cullington in Mousells Wood fruiting in deciduous litter. It's just as common in grassy path edges and is so-named for its distinctive mealy smell (i.e. of flour). The cap has a feel of kid gloves and the pinkish decurrent gills are also good characters, but though considered a good edible species, do not collect for the pot because it is easily mistaken for several similar species of Clitocybe, one of them dangerously poisonous!

September 6th 2020

Otidea onotica  by Margaret Bolton
Otidea onotica  by Margaret Bolton
September 6th Otidea onotica (Hare's Ear)

Our first Ascomycete photo, this was found by Margaret Bolton at Moorend Common growing in deciduous litter. The genus Otidea can be separated from the similar cup fungus genus Peziza in the field by having a split down one side, i.e not quite forming a complete unbroken cup.
Hydnum repandum  by Margaret Bolton September 6th Hydnum repandum (Wood Hedgehog)

This was found by Margaret Bolton at Moorend Common growing in deciduous litter. Turning this species over once collected and seeing its 'teeth' underneath instead of gills or pores always brings a smile.
Pleurotus cornucopiae  by Claire Williams September 6th Pleurotus cornucopiae (Branching Oyster)

Less common than the closely related P. ostreatus, this collection was found by Claire Williams growing on a deciduous log in Little Tinkers Wood.
Rhodotus palmatus  by Claire Williams Rhodotus palmatus  by Penny Cullington September 6th Rhodotus palmatus (Wrinkled Peach)

Claire Williams found this beautiful and quite rare species in Little Tinkers Wood on Wych Elm. Its rarity is due to the demise of its host tree the English Elm though it does occur on Wych Elm and is occasionally reported from other deciduous trees. A further specimen is shown (though much drier reflecting conditions), found at Mousells Wood on Sept 24th by Penny Cullington, also on dead Wych Elm.

September 5th 2020

Caloboletus radicans  by Tony Marshall September 5th Caloboletus radicans (Rooting Bolete)

Better known as Boletus radicans, this species is having a 'good year' and is widespread at the moment. It was found by Tony Marshall in Prestwood growing under an old hedge and occurs in both woodland and grassland either near deciduous trees or with Rock Rose. The pale ivory cap with firm flesh, yellow crowded pores which rapidly blue when pressed and the pointed stem base are all good characters.
Macrolepiota procera  by Penny Cullington September 5th Macrolepiota procera (Parasol)

This collection was found by Penny Cullington at Turville Heath growing under Lime in long grass. Though the white gills are not yet exposed, the three specimens show how the cap starts out life entirely smooth brown but gradually splits to form scales as it expands. The stem surface is also smooth when really young (as seen in the smallest fruitbody) but soon splits and develops the diagnostic 'snakeskin' effect which typifies this species and separates it from the similar Chlorophyllum rhacodes (Shaggy Parasol).
Neoboletus luridiformis  by Penny Cullington September 5th Neoboletus luridiformis (Scarletina Bolete)

More familiar as Boletus erythropus, this impressive fungus is quite common under deciduous trees (here found by Penny Cullington at Turville Heath growing under Lime), The brown cap, bright red pores and stem with flesh that instantly blues when cut make this an easy species to identify.

September 4th 2020

Calcipostia guttulata   by Derek Schafer Calcipostia guttulata   by Derek Schafer September 4th Calcipostia guttulata (No common name)

Derek Schafer found this rare bracket (previously in the genus Postia) growing on conifer in Stoke Grove Park (a site straddling the Bucks / Beds border though the find was sadly just into Beds!) First recorded in the UK in 2013 (Herefordshire) it seems to be gradually spreading eastwards, so the challenge is to find it in Bucks now! Postia stiptica (Bitter Bracket), another conifer species, is extremely similar but note the tiered habit of this rarity together with the droplets which form on it when young (see photo detail).
Geastrum triplex  by Margaret Bolton September 4th Geastrum triplex (Collared Earthstar)

Margaret Bolton noticed this fungus in a roadside verge near Frieth. A woodland species, this is one of the larger Earthstars and also probably the commonest. This particular specimen has a distinct collar but that feature is not always obvious or even present which can confuse identification.
Amanita excelsa  by Penny Cullington Amanita excelsa  by Paul Goby September 4th Amanita excelsa (Grey Spotted Amanita)

This was found by Penny Cullington in Bradenham Woods under Oak and Beech. Not quite as common as the similar A. rubescens, also sometimes mistaken for the very poisonous A. pantherina, note the grey rather irregular specks of cap veil (which rub off as in all members of the genus) and lack of pink stains. The first character separates it from A. pantherina which has really white and regular veil patches, the second separates it from A. rubescens. Another useful confirmation that you have A. excelsa and not A. pantherina is well illustrated in the second photo (from Naphill Common Sept 20, Paul Goby): note the clear striations on and above the ring on the stem. These occur in both A. excelsa and A. rubescens but not in A. pantherina.
Amanita rubescens  by Penny Cullington September 4th Amanita rubescens (Blusher)

One of the earliest fruiting and most common Amanitas, this was found in Bradenham Woods by Penny Cullington under Oak and Beech. Note the typical features of the genus together with the pink stains of this species which develop where damaged. Compare also with the similar A. excelsa which always lacks pink stains.
Gyroporus castaneus  by Penny Cullington September 4th Gyroporus castaneus (Chestnut Bolete)

An unusual bolete found by Penny Cullington at Naphill Common growing under Oak. The bright brown cap and stem with white pores which don’t blue on bruising are good field characters. The only previous record for this site was back in 2001.

September 2nd 2020

Suillellus luridus  by Penny Cullington September 2nd Suillellus luridus (Lurid Bolete)

More familiar as Boletus luridus, this species is appearing in remarkably large numbers at the moment. It is normally a woodland species but here was fruiting with Helianthemum (Rock Rose) at Coombe Hill, found by Penny Cullington. It can be seen fruiting in hundreds at present with Rock Rose at both Watlington Hill and Beacon Hill, Aston Rowant Nature Reserve, so well worth looking out for in this specialised habitat now.
Shaggy Parasols by Joanna Dodsworth September 2nd Chlorophyllum rhacodes (Shaggy Parasol)

This complete ring of Parasols was found on the Walks at Brill Common by Joanna Dodsworth. To separate this common species from the very similar Macrolepiota procera (Parasol) scratch the stem or break the cap flesh and watch for the orange flush which occurs in a few seconds especially in fresh specimens but is absent from M. procera.
Clitocybe gibba by Nick Standing September 2nd Clitocybe gibba (Common Funnel)

Found growing in grass in Penn Street churchyard by Nick Standing. This is a species which often fruits early in the season and occurs in both woodland and grassland.

September 1st 2020

Russula rosea by Penny Cullington September 1st Russula rosea (Rosy Brittlegill)

One of many red capped members of this genus, this species (found by Penny Cullington under Oak and Beech at Wotton Park Estate) often has a red stem as seen on one specimen here, also has much firmer flesh than other similar species and a cap cuticle which hardly peels at all

August 31st 2020

Hericium cirrhatum by Claire Williams
Hericium cirrhatum by Claire Williams
August 31st Hericium cirrhatum (Tiered Tooth)

Claire Williams found this rare and beautiful fungus fruiting on the same fallen Beech trunk in Naphill Common as it was last year when it was recorded here for the first time. Not quite as rare as the similar H. erinaceus (which also occurs on this site) it is notable for having fine tubes (known as teeth) underneath in place of gills or pores.

August 28th 2020

Volvariella bombycina  by John Catterson August 28th Volvariella bombycina (Silky Rosegill)

John Catterson found this quite rare and beautiful fungus growing on Horse Chestnut in Hughenden Park, Wycombe. Similar to the genus Pluteus, which also occurs on wood and has pink free gills, the genus Volvariella has a 'volva' or sack similar to an Amanita at the stem base (not visible here being submerged within the wood).

August 23rd 2020

Strobilomyces strobilaceus by Timm Harrison Strobilomyces strobilaceus by John Catterson August 23rd Strobilomyces strobilaceus (Old man of the woods)

This quite rare and strange-looking bolete was found by Tim Harrison in Hobbshill Wood near Great Missenden under Beech (photograph Tony Marshall). Apparently not recorded in this specific area for 19 years or so, it has been reported from other woodlands this autumn and is definitely one to look out for. The second photo of young material was found under mixed trees including Larch and Birch at Penn Wood on September 16th by Sarah Ebdon (photo John Catterson). It shows one of the unusual features of the species: when scratched the flesh quickly stains red then black.








Slime Moulds by Barry Webb

Lamproderma sp. by Barry Webb Lamproderma sp. by Barry Webb


Cribraria aurantiiaca by Barry Webb Cribraria aurantiiaca by Barry Webb


Cribraria sp by Barry Webb Cribraria sp by Barry Webb


Enerthenema papillatum by Barry Webb Enerthenema papillatum by Barry Webb


Hemitrichia calyculata. by Barry Webb Hemitrichia calyculata. by Barry Webb


Metatrichia floriformis by Barry Webb Metatrichia floriformis by Barry Webb


Stemonitis sp by Barry Webb Stemonitis sp by Barry Webb


Stemonitopsis hyperopta or amoena, possibly by Barry Webb Stemonitopsis hyperopta or amoena, possibly by Barry Webb


Scomatricha nigra by Barry Webb Comatricha nigra by Barry Webb


Comatricha pulchella or anomala, possibly by Barry Webb Comatricha pulchella or anomala, possibly by Barry Webb