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17-01-2026 19:35

Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

16-01-2026 00:45

Ethan Crenson

Hi all, On decorticated hardwood from a New York

18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

17-01-2026 10:41

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Hola, he descubierto que he creado una Pulvinula t

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16-01-2026 11:20

Castillo Joseba Castillo Joseba

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10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

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Last week I found this fungus, possibly a hyphomyc

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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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