20-02-2026 18:47
Marc Detollenaere
Hello Forum,On rotten wood of Fagus, I found some
07-02-2023 22:28
Ethan CrensonHello friends, On Sunday, in the southern part of
19-02-2026 17:49
Salvador Emilio JoseHola buenas tardes!! Necesito ayuda para la ident
19-02-2026 13:50
Margot en Geert VullingsWe found this collection on deciduous wood on 7-2-
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
17-02-2026 17:26
Nicolas Suberbielle
Bonjour à tous, Je recherche cette publication :
Amphisphaeria sp.
Gernot Friebes,
07-03-2016 11:31
this species, which I assume is an Amphisphaeria, grows plentifully on a corticated branch of Fraxinus or Ulmus on the ground. I checked the paper by Wang et al. (2004) but couldn't find a species that fits well with this collection. The ascospores measure about 18–21 x 5,5–7 µm and appear to be smooth and without a sheath. Maybe someone has an idea!
Best wishes,
Gernot
Dok1-0001.pdf
Alain GARDIENNET,
07-03-2016 18:17
Re : Amphisphaeria on Fraxinus
Hi Gernot,
Have you looked towards Amphisphaeria umbrina (or A. cavata) ?
Alain
Gernot Friebes,
08-03-2016 12:26
Re : Amphisphaeria on Fraxinus
Thanks for your suggestion, Alain! I have no experience with A. umbrina but looking at the description and images in Wang et al. I feel like the ascospores of A. umbrina should be a bit darker brown than in my collection. Also it seems like the morphology of the ascomata is somewhat different but I think that could certainly vary to some degree...
Best wishes,
Gernot
Best wishes,
Gernot