09-11-2025 13:20
Hello.A tiny ascomycete, appearing as erupting gra
08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
04-11-2025 09:07
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
Ascomycete on oak cupules
Edit Szilvásy,
30-09-2013 22:59
Hi all,I've found this ascomycete on oak cupules. Apothecia 2-8 mm across.
Spores ellipsoid, hyaline, 24-5 µm
J-negative (Lugol)
Does anyone have an idea what this might be?
Thanks in advance
Regards, Edit
Hans-Otto Baral,
30-09-2013 23:45
Re : Ascomycete on oak cupules
Hi Edit
This is Phaeohelotium geogenum (= Hymenoscyphus geogenus).
But the asci should have a small blue apical ring in IKI.
Zotto
This is Phaeohelotium geogenum (= Hymenoscyphus geogenus).
But the asci should have a small blue apical ring in IKI.
Zotto
Hans-Otto Baral,
30-09-2013 23:45
Re : Ascomycete on oak cupules
Hi Edit
This is Phaeohelotium geogenum (= Hymenoscyphus geogenus).
But the asci should have a small blue apical ring in IKI.
Zotto
This is Phaeohelotium geogenum (= Hymenoscyphus geogenus).
But the asci should have a small blue apical ring in IKI.
Zotto
Edit Szilvásy,
01-10-2013 08:19
Re : Ascomycete on oak cupules
Dear Zotto,
Thank you very much for your help.
Regards: Edit
Thank you very much for your help.
Regards: Edit


