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09-06-2009 20:37

Gernot Friebes

Hello, here is another (the last) Lachnum which

09-06-2009 17:28

Gernot Friebes

Hello, I found this single apothecium on bark b

09-06-2009 17:21

Roland Labbé

Bonjour ! Voici un discomycète que nous croyon

09-06-2009 13:33

Enrique Rubio Enrique Rubio

Dear friends: I'd lke to know your opinion about

09-06-2009 13:17

Enrique Rubio Enrique Rubio

Dear friends: This Mollisia (?) species grows on

09-06-2009 11:43

NC NC

Bonjour à tous, Il y a 10 ans environ je considÃ

08-06-2009 10:50

Alain BRISSARD

Bonjour à tous Ayant un mal fou à discriminer l

07-06-2009 15:48

Perz Piotr

Hi, I found a tiny Coleomycet on leaves of Pier

06-06-2009 10:14

Alain GARDIENNET Alain GARDIENNET

Bonjour, Quelqu'un aurait-il la description de c

05-06-2009 22:24

Yannick Mourgues Yannick Mourgues

Bonsoir. Je cherche une clé des Cudoniella. I'

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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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