17-04-2026 19:16
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
15-04-2026 19:33
Fátima Durán ManzanequeHi!! I need help, I found this Ascomycete but I d
14-04-2026 20:31
Gernot FriebesHi,can this be Psilachnum lateritioalbum on Phragm
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
12-04-2026 12:22
William Slosse
In a dune grassland in Oostduinkerke (Belgium), on
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
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








