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04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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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 !