15-11-2025 23:22
Mario FilippaHello,this is what I think to be Hymenoscyphus mac
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
15-11-2025 20:25
Riet van Oosten
Hello, Found by Laurens van der Linde, Nov. 2025
14-11-2025 18:31
Lothar Krieglsteiner
Hello,can somebody provide me with a file of:Rothe
12-11-2025 09:25
Viktorie Halasu
Hello, I need help with a pale terrestric Pseudom
11-11-2025 20:16
Bohan JiaHi, lastly I have found these tiny yellow decayin
09-11-2025 13:20
Hello.A tiny ascomycete, appearing as erupting gra

Dear Forum,
On the bark of Quercus, I found some small pale yellow apothecia with pruinose aspect.
Asci were inoperculate and measured 65-72x9µ. The spores were 3-septate and contained a lot of guttules( 22-23x4-4.5µ). Some paraphyses were branched.There was a blue coloration of the apical apparatus with IKI.No conidia were seen.
Could this be Claussenomyces or rather Pezicula?
Marc
You are right Zotto, sporewidth was a bit overestimated. I again measured 15 spores and had a mean of 3.8µ.
It matches very well with your pictures in IVV.
Thank you very much
Marc





