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15-11-2025 09:21

Josep Torres Josep Torres

Hello.An anamorph resembling Capronia is sprouting

14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

14-11-2025 18:31

Lothar Krieglsteiner Lothar Krieglsteiner

Hello,can somebody provide me with a file of:Rothe

12-11-2025 21:47

ruiz Jose

Hola a todos, me envían esta colección en resto

12-11-2025 09:25

Viktorie Halasu Viktorie Halasu

Hello, I need help with a pale terrestric Pseudom

11-11-2025 20:16

Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

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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

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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
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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

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Mirek Gryc, 03-02-2020 13:42
Re : Trichopeziza on wood. Betula?
wood
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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).
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Mirek Gryc, 03-02-2020 16:44
Re : Trichopeziza on wood. Betula?
Zotto.

You definitely overestimate my possibilities :)

Mirek


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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

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Hans-Otto Baral, 03-02-2020 21:59
Hans-Otto Baral
Re : Trichopeziza on wood. Betula?
Thanks!