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04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

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

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

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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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