Accès membres

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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

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

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Unknown pyreno on Juglans regia
Gernot Friebes, 22-05-2017 14:53
Hi,

I'm looking for help with this fungus. It grows in the bark of a branch of Juglans regia. The ascomata are reminiscent of the ubiquitous Lophiotrema rubi, and at first I expected it to be that species but microscopy told a different story.

The most striking feature are probably the ascospores (ca. 27–33 x 4.8–5.5 µm), which are filled with refractive guttules and usually have 5–7 transverse septa with one cell often being slightly larger than the other ones. The asci appear bitunicate and the hamathecium consists of traberculate threads. 

Best wishes,
Gernot
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