Beiträge von Steve_mt

Dear friends, I was suspecting that it wasn't a germ pore but in some examples, there was a distinct gap and made me doubt what I am seeing apiculus or a g. pore. That doubt being cleared, the keys of Pholiota in N Europe as per 2006 leaves Ph. vestita as the only candidate. But one must consider what is found in the south, newer species or perhaps something new. I do some more research in this area and see what I find.

here is already something:

Pholiotina vestita - Pholiotina

Pholiotina vestita - inviati in Pholiotina: Pholiotina vestita (Fr.) Singer, Beih. bot. Zbl. 56: 170 (1936)Basionimo:Galera vestita Fr., in Quélet…

www.ambmuggia.it

Pholiotina vestita - Pholiotina

Pholiotina vestita - inviati in Pholiotina: Pholiotina vestita (Fr.) Singer, Beih. bot. Zbl. 56: 170 (1936)umbone leggermente più scuro

www.ambmuggia.it

Thank you so much!

So I am consulting the keys of Pholiotina in Flora Agaricina Neerlandica Vol. 6 (Arnolds, 2005: 180--203).

Our specimen would classify under subkey 2 for its veil present, leaving flocks adhering to the margin

The Cheilo not being capitate would exclude Ph. brunnea.

Now I am not so sure if my spores have a tiny germ pore or not, but if not, then this autumn-fruiting species would be ascribed to Ph. vestita from

the keys mentioned.

If we decide that the spores have a germ pore, P. utriformis is discarded for having utriform cheilocystida

With a spore mean of 8.0 um, the specimens would key to a branch leading to P. velata and P. exannulata. The later should have a pileus with a darker centre when moist , and which my specimens are.

Hmm not really convinced that it is Ph. exannulata though!

I am glad to have some support re my reasoning of this puzzle. Thank you so much !!!

Thanks for helping and having an interest in this fungus. I spend a few hours googling and flipping the pages of my microfungi book in vain as well. So maybe I post on ascofrance tmrw and I keep you posted.

A big thanks to all who contributed. Yes a Hymeniderm 100%. I am quite convinced it is a Pholiotina but I have to go deeper in some key to suggest some options.

Raphael, the shape of the cheilocystidia is shown/documented in my post (if it helps re id)

Pathyrella clivensis

Psathyrella clivensis Fungus Species

Psathyrella clivensis – Belobetna črnivka – Gobe na Bovškem

www.gobenabovskem.si

Psathyrella clivensis - A.M.B. PESARO

Genere Psathyrella Specie clivensis (Berk. & Broome) P.D. Orton Sinonimi: Foto   Exsic. n. 2815 Erbario Maletti. Determinatore: Maletti M. Foto. Maletti M.…

www.ambpesaro.it

Spores match incl. size, shape, no germ pore, thick-walled

White Stipe

Short cheilocystidia

No or scanty Veil

Habitat is not so different, also in alkaline soil

Overall colours and small size of cap quite similar

Hello everyone and thank you for your valuable tips. I think I agree that we are in the Psathyrella or something around Mythicomycetaceae genera (Psathyrella and Mythicomycetaceae are sister families). My problem with the latter family is that some characters obtained from the paper describing the family (Vizzini et al., 2019 - doi.org/10.3114/fuse.2019.03.05) do not match with my specimens, namely Mythicomycetaceae should have:

- Pileipellis a thin ixocutis with parietal pigment

- Cheilocystidia thick-walled, inocybe-like, often with hyaline crystals at apex

I see a hymeniderm pp. and the cc. without crystals. If my reasoning is correct, I focused on Psathyrella and apply Melzer Key

There aren't much species of Psathyrealla without a germpore and the key took me to section A (no seta in cap, veil absent, no yellow pigment in cc, plerocystidia absent) or section D (no seta, veil absent, no yellow pigment in cc, pleurocystidia present). I did not see pleaurocystidia but I took both sections of the key into consideration.

In Section A, the closest would be Coprinopsis submicrospora which i dont see it much similar

In Section D, the closest would be Psathyrella clivensii but there are other options but things get more tough down the key

OK HAROLD, seems there is a consensus about no Pluteus which I accept. Psathyrellaceae was suggested.... I check along that genus

Zitat von zuehli

I'm sure that's no Pluteus.

best regards

Harold

Zitat von Beorn

Hello / Good afternoon!

Maybe this belongs to Psathyrella? Or at least Psathyrellaceae?

LG; Pablo.

OK, I try to check and key under this genus s.l. Many thanks

I have another Little Brown Mushroom with interesting colours , namely the stipe which is whitish outside with a yellowish flesh in the upper half and brownish at the bottom (when fresh). No ring, stipe glabrous except few scanty fibrils. I think the gills are in majority free (some maybe slightly touching at the uppermost part). Spore-print darkish rusty brown. The pileipellis is an hymenoderm of either spherical or spheropendiculate cells. Basidia frequent, 4-sporous oblong-clavate. Cheilocystidia appears to be numerous from the whitish edge, but when mounted, they were rather scarce. Their shape is lageniform-conical with gradual tapering towards the tip, 25-35um long. Spores ovate with a slight almond-shape, tiny germ pore at the base, wall seems thick, size:

(6.5) 7.5 - 8.6 (9.1) × (3.9) 4.2 - 4.9 (5.2) err

Q = (1.5) 1.6 - 1.9 (2.1) ; N=19

V = (61) 69 - 109 (130) err3

Me = 8.1 × 4.5 err ; Qe = 1.8 ; Ve = 87 err3

There are sporeprints of pluteus in the brown hues, and maybe my image got a bit darker after the White balance adjustment. Saying that, I do not commit myself it is a Pluteus 100% . The gills are free (or just a bit adnexed)

Hi. I have found a nice cluster of caramel-cinnamon brown mushrooms with a paler border measuring 1-3 cm wide (pileus diameter) and about 5cm long. The stipe is cream, smooth except for some pruinosity at the apex and not attached to the gills. Spore print medium brown. Spores elliptic with obtuse ends, not ornamented measuring 8.2 × 5.1 µm [ 6.8) 7.4 - 9.1 (10.4) × (4.4) 4.7 - 5.6 (5.9) µm // Q = (1.3) 1.5 - 1.8 (2) ; N=27 // Me = 8.2 × 5.1 µm ; Qe = 1.6 ; Ve = 113 µm3]. Pileipellis a hymeniderm of angular cells. Margin of gills completely lined with dense tufts of short (19-24um long) cheilocystidia, clavate-utriform, hyaline. I think we are dealing with a small Pluteus. But which one thomsonii ?

Magnified images of the

fruiting cluster (c. 1mm across)

Dear Thorben and microfungi lovers. I woke at 1:30am and went straight to investigate this fungus. Well, it is a large microfungus looking a bit like a medusa head but I studied the structure and it consists of (at least) the following features

1. Large amounts of conidiospores measuring (6)7-8(9) x 2-3 um, cylindrical and slightly curved with rounded ends

2. Numerous snake-like (curved) paraphyses, 2-3 septate, clavate with very rough (densely verrucose) walls

3. Dense and x2 (or more) branched penicillate conidiophores that are much shorter from the paraphyses

4. Structural cells with deep yellow pigment, more or less subsphericall

These fruiting bodies are erupting from the fruit's pulp (not superficial)

Spores' size:

(6.1) 6.8 - 8.5 (9.1) × (2.2) 2.3 - 2.8 (2.9) µm

Q = (2.2) 2.5 - 3.5 (3.9) ; N=27

V = (18) 21 - 33 (38) µm3

Me = 7.7 × 2.5 µm ; Qe = 3 ; Ve = 26 µm3

dear Ulla, thank you for the time replying to me. I need to train myself more on how to distinguish these capillitium/lime nodes between Badhamia and Physarum, so if u can suggest some website/doc/image for this purpose, I would appreciate. I understand that in Badhamia, the lime nodes are bulkier but my eyes need more training.I will check Yr kind suggestion of B. macrocarpa

Hopefully tmrw morning! I am also so curios

Some not-good photos from stereomicroscope (x40) seems to show they are embedded within the gills or even have a tiny stipe?!

I have no indication they are living things (these are 0.2mm) but they are attached to the gills and they will not come loose even if touched or tried to apply force with dissecting needle. It could be soft faeces which solidified on the gills if that can happen.

Do you confirm Clitopilus hobsonii or should I provide some micro-examination to be sure on the species ?

P.s. those brown blobs are not dust or artefacts but something growing from the fungsu, like fungus galls!?

Fuzzy yellow heads about 0.5mm across (sometimes ca. 1mm) arising from a short stipe. Any small idea or help (Family, Order...) is also appreciated. I collected the specimen but on one hand I am too busy on the other too curios!

Found a folder of images of unidentified slime mould from 2016 (I probably forgot to work on it) and now I a, trying to label it.

Myxocarp flattened (depressed) greyish-white, covered with lime granules, having a short beige-light brown stipe. Capillitium with many, bulky/large lime granules. Spores seem to be minutely spinulose with at least one pale patch (halos) looking like a crater (sometimes with ridges ?), (9.5)10-11um diameter.

If other measurements are required , let me know.

I was thinking that it is Physarum album.

Hello, I found old photos (2016) of unidentified slime moulds. This Physarum has stout, reddish-brown stems that are sculptured and furrowed. The spores are (10.5)11-12(12.2) um, apparently without spines but somewhat roughened (warty and perhaps ridged?) and in some focal planes it shows a wall with a double perimeter ?!? Not sure if there is a columella (I always have difficulty to detect this character!) but one image (8483) seems to show a basal flattened white mass at the center (=columella?).

Inocybe mecoana Fachada, Bandini & Mifsud described in a paper by Bandini and some twelve authors about Fibre Caps in Europe. Here are some photos of this species from Malta for this dear group

Zitat von matthias0

Hello Steve,

I think it is Hortiboletus engelii,

Best wishes

Matthew

Actually, I have an idea - could someone suggest authentic and good Genbank sequences of H. rubellus and H. engelii to which I can compare my sequences? I think this would be the best way to solve this dilemma of rubellus vs engeli. Was the type ever sequenced ?

Zitat von matthias0

Hello Steve,

I think it is Hortiboletus engelii,

Best wishes

Matthew

Could be, but last year, I sequenced a population of Boletus from the exact same site / habitat and it was given as H. rubellus... but I remember we had an interesting discussion re validity of what labelled on Genbank, so same issue again!