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08-03-2023 10:06

Hans-Otto Baral Hans-Otto Baral

Dear community I have to do an announcement: The

21-03-2023 07:40

Josep Torres Josep Torres

Hola.Un anamorfo sobre la superficie de un tronco

21-03-2023 09:31

Margot en Geert Vullings

These black discs seen on a fallen Betula branch,

20-03-2023 19:25

Edvin Johannesen Edvin Johannesen

Hi!Can Antinoa pulchella be this yellow on the out

20-03-2023 19:26

Mirek Gryc

Hi A friend sent me some photos asking for help i

17-03-2023 17:08

Michel Hairaud Michel Hairaud

Bonjour, Hi to everyone, Je recherche les documen

18-03-2023 18:35

Riet van Oosten Riet van Oosten

Found by Laurens van der Linde, March 2023 on Rubu

18-03-2023 19:47

Margot en Geert Vullings

Seen on Crataegus monogyna 'Compacta' in our garde

18-03-2023 23:01

Thierry Blondelle Thierry Blondelle

Good evening,I'm looking for a key of Hypoxylon ge

16-03-2023 20:12

Valencia Lopez Francisco Javier

Hola amig@sTengo esta Peziza sp sin identificar, 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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