04-10-2025 02:13
Francois Guay
Hi everyone, I found this Hymenoscyphus growi
03-10-2025 22:17
Francois Guay
Hi everyone, I found this white, star-shaped
03-10-2025 22:03
Francois Guay
Hi everyone, I found this weird asco growing on wo
03-10-2025 13:44
Riet van Oosten
Hello, Found by Laurens van der Linde on Populus
05-10-2025 16:41
François BartholomeeusenDear forum members, On a mat of dried algae/liche
03-10-2025 10:25
Jean-Luc RangerQue pensez-vous de ce Chaetomium sp : 10- 10,5 x 6
03-10-2025 09:43
Josep Torres
Tiny blackish ascomata shaped like erumpent grains
02-10-2025 09:16
Josep Torres
Hello.Some tiny apothecia sprouting in a scattered
01-10-2025 20:16
Zuzana Sochorová (Egertová)
Hello,I would appreciate your opinion on this yell
White asco on Fagus grandifolia leaf
Francois Guay,
03-10-2025 22:17
Hi everyone,I found this white, star-shaped asco on a Fagus grandifolia leaf in Quebec, Canada.
Spores: 15–16.6 × 3.5–4.3 µm
Asci: IKI+
Here’s the iNat link with photos and microscopy:
Any idea what it could be?
Thanks!
Hans-Otto Baral,
04-10-2025 08:41
Re : White asco on Fagus grandifolia leaf
I do not understand the macroscopy. Are the apos stalked or sessile and what about the toothed receptacle? What are the teeth composed of?
Microscopy recalls H. caudatus agg.
Francois Guay,
05-10-2025 21:28
Re : White asco on Fagus grandifolia leaf
Yes, the apothecia were short-stalked. I think the "star shape" is just an unusual shape; next to them were some other apothecia with a regular form like other Hymenoscyphus. The teeth were just like the rest of the hymenium.
Thanks Zotto
Thanks Zotto