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Mot de passe perdu?

15-09-2025 14:40

Engler & Prantl, Nat. Pflanzenfam. (Ed. 2) 1938

Nicolas VAN VOOREN

Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Cheilymenia stercorea

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Otidea platyspora or something else?

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Pseudocoprotus catenipilus ???

Blasco Rafael

Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Hymenoscyphus on Rubus

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Edmond POINTE

Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Marthamycetales revision published

Jason Karakehian

Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Strickeria kochii?

Marcel Heyligen

Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

dark- and small-spored Sordariomycetes on Fraxinus - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres

Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

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!