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27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 14:10

Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

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Cheilymenia ?
Nivalys Sylvain, 03-03-2018 07:52
Nivalys SylvainBonjour à tous !

Voici un asco observé l'été dernier dans les Pyérénées sur bouse de vache, pour lequel j'aurai bien besoin de votre aide...

Observés sur bouse en prairie, à Quérigut (09), le 30 juillet 2017. Altitude 1.500 m.

Spores : 14,5-17,2 x 6,9-7,6 µm.

Amicalement
Sylvain

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Nivalys Sylvain, 07-03-2018 07:58
Nivalys Sylvain
Re : Cheilymenia ?
up !
Viktorie Halasu, 07-03-2018 08:16
Viktorie Halasu
Re : Cheilymenia ?
Hello Sylvain,

although I have no experience beyond C. vitellina with this genus, for determining Cheilymenia it would be necessary to know if there is any spore ornamentation and how it looks like (longitudinally striate, verrucose, ...), the length of the marginal hairs, probably also how the hair bases look like and if there are any stellate hairs present (stellate hairs = two or more hairs originating from the same basal cell). Spore ornamentation needs to be checked under oil immersion (it's very fine) and on spores that turn yellowish inside in cotton blue (those stained blue inside are immature). 

Viktorie 

Nivalys Sylvain, 09-03-2018 08:35
Nivalys Sylvain
Re : Cheilymenia ?
Thank you Viktorie for these explanations which will be useful for the future !