09-11-2025 13:20
Josep Torres
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
Josep Torres
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
Arachnopeziza eriobasis?
Przemyslaw Drzewiecki,
30-12-2022 00:09
21.08.2020; Das Thorn-Eberswalder Urstromtal. In der Nähe von Bydgoszcz (Polen). Gesammelt auf dem alten Stamm und den Blättern einer krautigen Pflanze.
Grüße - Przemek
Hans-Otto Baral,
30-12-2022 20:57
Re : Arachnopeziza eriobasis?
I do not know this species personally but suspect that it is, it fits other collections in my folder. But I now looked in Kosonen et al. 2020 who treats two collections identified by Korf as A. eriobasis under Arachnoscypha aranea. I am now curious if your fungus and those in my folder are also A. aranea. In fact I had placed A. eriobasis in my Arachnoscypha folder.
Przemyslaw Drzewiecki,
30-12-2022 22:55
Re : Arachnopeziza eriobasis?
Thank you for your opinion. I just read a paper: "Taxonomy and systematics of Hyaloscyphaceae and Arachnopezizaceae" (T. Kosonen, S. Huhtinen, K. Hansen). Interestingly, A. eriobasis does not seem to be a good species. However, if you or someone else would like to genetically sequence my collection - I will gladly send it. I am not 100% sure that the substrate is a herbaceous plant. Perhaps it is a non-woody young sprout of a willow?
Regards - Przemek
Regards - Przemek
Kosonen Timo,
31-12-2022 15:18
Re : Arachnopeziza eriobasis?
Hello,
This is an interesting sample! It must be Arachnoscypha. But it might be something else than A. aranea.
I studied A. aranea and eriobasis collections by Korf and I had diffiulties observing any difference. The main difference appeared to be the ecology. HOwever, I have never studied any (fresh) material from Castanea, mainly from Acer (leafs). All Scandinavian material is conspecific and I came to the conclusion that it fits better to A. aranea.
-More than willing to study this material! :-)
bw
Timo
Przemyslaw Drzewiecki,
31-12-2022 20:21
Re : Arachnopeziza eriobasis?
Hello,
I'm glad that the collection has a chance to fall into the right hands. Please enter the shipping address.
I wish you and the entire ASCOFrance community a Happy New Year.
Przemek
I'm glad that the collection has a chance to fall into the right hands. Please enter the shipping address.
I wish you and the entire ASCOFrance community a Happy New Year.
Przemek