29-08-2025 19:04
Thomas FlammerSpores 21.2 - 26.2 x 8.3 - 11.3 µm - Q: 2.20 - 2.
28-08-2025 17:24
Thomas FlammerI know, that this is not the real topic of this fo
29-08-2025 05:16
Francois Guay
I think I may have found the teleomorph of Dendros
27-08-2025 12:02
Pavol PaloHello dear friendsI would like to ask for sharing
25-08-2025 17:37
François Freléchoux
Bonjour,Nous avons trouvé samedi dernier à l'ét
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
Viktorie Halasu,
27-05-2020 09:31
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
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
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.
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
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
