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25-03-2026 15:06

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

25-03-2026 13:54

Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

25-03-2026 15:46

Michel Hairaud Michel Hairaud

Bonjour, Je sollicite de l'aide pour cette récol

24-03-2026 19:59

William Slosse William Slosse

Hello everyone,On 23/03/26, I found the following

21-03-2026 15:13

Lepista Zacarias

Hello everyone, Does any one know of any literatu

24-03-2026 21:37

Elisabeth Stöckli

Bonsoir,Sur bois (tronc) très pourri de conifère

24-03-2026 21:07

Ethan Crenson

Hello all, A friend collected this asco in a wood

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

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Unknown from Fraxinus bark
Mirek Gryc, 27-05-2020 08:56


Hello all
I found yesterday, on the bark of a dead Fraxinus.
He looked interesting. However, during microscopy it turned out to be probably an anamorph. I have no idea.
Maybe you know something more about him ??
greetings
Mirek

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Viktorie Halasu, 27-05-2020 09:31
Viktorie Halasu
Re : Unknown from Fraxinus bark
Hello Mirek,

the microphoto is anamorph of Dermea tulasnei, in my country either terribly overlooked in the past or spreading recently (maybe due to ash dieback disease). There should be olivegreen gel (or yellowish brown in old pycnids). Both morphs release yellowish red colour in KOH.
But the macro looks a bit wrong, too dark, too much like separate fruitbodies instead of one multilocular pyknid. Is it possible that you have also Tympanis columnaris there? 

Viktorie 
Viktorie Halasu, 27-05-2020 09:36
Viktorie Halasu
Re : Unknown from Fraxinus bark
Which kind of ash is it, by the way? We have it on F. excelsior and F. angustifolia here. The other two species (pennsylvanica + ornus) occur here too but not so frequently and I haven't look specifically for them yet.
Mirek Gryc, 27-05-2020 12:01
Re : Unknown from Fraxinus bark
Hi Viktorie
I don't know what species Fraxinus is. Only a fragment of the trunk with roots remained from the tree. There are live trees nearby. As the leaves grow, I can identify them if it is so important.

In the evening I will check the reaction to KOH and try to take additional macro photos.
Thank you
Mirek

Mirek Gryc, 27-05-2020 19:27
Re : Unknown from Fraxinus bark
Hi Viktorie
As promised I put pictures.
The fruiting bodies are drier today, so they look slightly different.
Yesterday I photographed when they were very moist, after longer rainfall.
Mirek
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