25-08-2025 17:37
François Freléchoux
Bonjour,Nous avons trouvé samedi dernier à l'ét
20-08-2025 19:04
Ethan CrensonHello, This asco was found on the same wood as my
22-08-2025 08:41
Masanori KutsunaHello.Can anyone help me to get this article?Liu H
21-08-2025 02:18
Stefan JakobssonOn a necrotic section of a living Tilia cordata I
Acorn fungus
Guy Buddy,
19-10-2020 22:24
This is a common cup on Quercus acorns in Pennsylvania, USA. Medullary excipulum looks textura intricata while ectal looks angular to globose. Paraphyses filiform, septate, some forked, with small oil drops. Asci weak IKI +, no croziers. Spores measure 35.4 × 6.1 µm.
Thanks,
Devin
Guy Buddy,
19-10-2020 22:25
Re : Acorn fungus
more pics
Hans-Otto Baral,
20-10-2020 08:40
Re : Acorn fungus
We had this fungus a few days ago: http://www.ascofrance.fr/search_forum/65321
It is Phaeohelotium geogenum (Cooke) Svrcek & Matheis, but perhaps better placed in Cudoniella.
The type is from near Paris and the type of the synonym Helotium longisporum Schweers from Netherlands.
Typically it grows on remnants of Quercus, preferably acorns.
From your scale I find the spores 30-38 x 5.3-6 µm.
Zotto
Guy Buddy,
20-10-2020 15:49
Re : Acorn fungus
Thanks Zotto for sharing your braincyclopedia.
Devin
Devin