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Mot de passe perdu? S'inscrire

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

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Acorn fungus
Guy Buddy, 19-10-2020 22:24
Good evening,
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
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Guy Buddy, 19-10-2020 22:25
Re : Acorn fungus
more pics
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Hans-Otto Baral, 20-10-2020 08:40
Hans-Otto Baral
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