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07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

03-09-2025 21:59

Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

06-09-2025 21:40

David Chapados David Chapados

Hi, Does somebody know the genus that has those b

07-09-2025 11:34

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hymenoscyph

02-09-2025 11:34

Thomas Læssøe

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

05-09-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour, hi everyone,Do you know where the fungari

05-09-2025 18:53

Robin Isaksson Robin Isaksson

Hi! Spores 1 septate; 12-13 x 3um Hairs 35-75

04-09-2025 20:11

Åge Oterhals

Saccobolus on dear droppings. Can any of you confi

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Cosmospora sp
Christian Lechat, 13-06-2008 08:16
Christian LechatI would like to know your opinion about a collection of Cosmospora on 03.05.2008 in French Guiana, Saül, Sentier des Gros Arbres, on rotting bark, mixed with Neonectria jungneri, Haematonectria cf. haematococca, Cosmospora chaetopsinae-polyblastiae, Ophionectria trichospora, Viridispora alata and Bionectria sp.
There are several genera on this bark and it's difficult to study.
Only very minute ascomata of Cosmospora are isolated.

Cosmospora sp.:
Ascomata non stromatic,160-200µm hight and 100-130µm wide, red orange transluscent, asci and ascospores are visible through the wall. It’s difficult to make a section of perithecial wall but I was able to make one rather correct to measure it.
Perithecial wall 10-12µm wide made of a simple region of ellipsoid or elongate cells thick walled, asci clavate 55-70 x 12-14µm, ascospores 9,5-11 x 4,5-5µm, dark brown, becoming purple in KOH, striate.
Maybe have you an idea?
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