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18-12-2025 21:17

Two collections of yellowish discs on bare ground

Pol Debaenst

The identification took me to Byssonectria deformi

20-12-2025 10:49

Small resin asco?

Mirek Gryc

Hi. „I doubt it is possible to identify this ti

15-12-2025 07:09

indet. Rutstroemiaceae sp. on unk. fallen leaves

Danny Newman

Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Peziza vers varia ?

Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Polydesmia fructicola ?

Bruno CouÃ©

Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

18-12-2025 18:07

Phaeoisaria like?

Margot en Geert Vullings

These plumes were found on rotten wood.They strong

17-12-2025 18:35

Asexualfungi I : a book announcement

Michel Hairaud

Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

FranÃ§ois FrelÃ©choux

François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Melanospora cf. lagenaria on decaying polypore

Danny Newman

Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Unknown anamorph

Johan Boonefaes

Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

Trichopeziza on wood. Betula?

Mirek Gryc, 03-02-2020 12:52

Hi

I have not yet encountered such a species, growing on the decayed wood of Betula.
Maybe someone is known?
Mirek

Hans-Otto Baral, 03-02-2020 13:00

Hans-Otto Baral

Re : Trichopeziza on wood. Betula?

Hi Mirek

The spores would point to T. subsulphureum, but that species has usually yellow to brown lumps of exudate.

Lasiobelonium populi ined. could be a better choice. Is it possible to ascertain the wood? Did you see the bark, or can you do a radial section for checking the ladder-like pore connctions?

Zotto

Mirek Gryc, 03-02-2020 13:08

Re : Trichopeziza on wood. Betula?

Hi Zotto
Once again I looked at your disk and I also found L. pupuli.
The features seem to be compatible :)
Substrate I am sure. There was bark on the top of the trunk.
Thank you and best regards.
Mirek

Mirek Gryc, 03-02-2020 13:41

Re : Trichopeziza on wood. Betula?

However, I have uncertainty?
During the fall, the tree cracked into three pieces. They all lay in one row. The fattest was stripped of bark, so I photographed the upper one.
The bottom one, which can be seen in the picture, lying slightly to the side, I moved personally. I wanted to see his bottom page.

I do not suspect that someone was replacing wood ??
But, next to it was also Populus, only much thicker and older.
In my forest everything is possible, that's why I made cross-sectional and longitudinal sections.
Mirek

Mirek Gryc, 03-02-2020 13:42

Re : Trichopeziza on wood. Betula?

wood

Hans-Otto Baral, 03-02-2020 14:48

Hans-Otto Baral

Re : Trichopeziza on wood. Betula?

Hmm, from your sections I am not sure. The best to clarify is a radial section in which the pores are hit. What your section shows is only the parenchym fibres. The pores are 3-4-times as wide, and here the connections are important, I attach two photos of Betula. Populus has much larger pits (looking like an eye, third photo).

Mirek Gryc, 03-02-2020 16:44

Re : Trichopeziza on wood. Betula?

Zotto.

You definitely overestimate my possibilities :)

Mirek

Hans-Otto Baral, 03-02-2020 16:59

Hans-Otto Baral

Re : Trichopeziza on wood. Betula?

Yes! So it is clearly not Populus but very probably Betula (Alnus would be another choice, but I don't believe). I would be glad if you send me the collection data.

Mirek Gryc, 03-02-2020 18:58

Re : Trichopeziza on wood. Betula?

Alnus excluded! It doesn't occur here at all.
He is pleased to provide the collection details:
date of harvest: 2020.02.02
Substrate: Betula wood
location in photos:

thank you
Mirek

Hans-Otto Baral, 03-02-2020 21:59

Hans-Otto Baral

Re : Trichopeziza on wood. Betula?

Thanks!