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13-06-2008 08:16

Christian Lechat Christian Lechat

I would like to know your opinion about a collecti

11-06-2008 23:38

Alain GARDIENNET Alain GARDIENNET

Bonsoir, J'ai du mal à aboutir avec cet asco dic

11-06-2008 01:34

Patrice TANCHAUD

1 seule apothécie minuscule, inférieure à 0,5 m

04-06-2008 10:13

Alain GARDIENNET Alain GARDIENNET

Bonjour à vous, C'est encore moi qui revient à

01-06-2008 08:10

Christian Lechat Christian Lechat

vous souvenez-vous de la récolte de Nonotte sur l

27-05-2008 15:22

Carbone Matteo

Hello, Few days ago I found this "Tapesia" on wat

25-05-2008 22:20

Patrice TANCHAUD

Récolte en zone sablonneuse humide sur le bord d'

24-05-2008 20:50

Till Lohmeyer

Chers tous, un amie vient de trouver une Peziz

24-05-2008 15:55

Alain GARDIENNET Alain GARDIENNET

Bonjour à tous, Ma question concerne Valsa pini

24-05-2008 06:25

John Plischke John Plischke

Peziza ? Growing on top of a bale of straw. Spor

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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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