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17-11-2023 09:21

Marc Detollenaere Marc Detollenaere

Dear Forum,On an old stem of Anthriscus sylvestris

17-11-2023 00:43

Nogueira Héctor

31/10/2023 San Justo de la Vega (León) Spain Hel

12-11-2023 11:11

Charles Aron Charles Aron

Hi All, I've found an interesting Discomycete on

14-11-2023 21:35

Jason Karakehian Jason Karakehian

Hi, Ascofrance community. Any help with this would

12-11-2023 16:54

Stefan Jakobsson

On a dead stem of Rubus idaes I found a small grou

13-11-2023 19:43

Andgelo Mombert Andgelo Mombert

Bonjour, Sur tige morte d'Osmunda regalis, en tou

14-10-2023 11:29

Leif Goodwin

This summer I found some cup fungus on soil with a

26-04-2021 02:59

Masanori Kutsuna

Hello everyone,I am looking for this articles. Ba

12-11-2023 23:47

Ueli Graf Ueli Graf

Hallo, ich habe diesen Pyrenomyceten auf einem Bla

06-11-2023 22:44

Zetti Mario

I am not sure how much you can help me with these

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On Fagus branch
Margot en Geert Vullings, 19-02-2025 19:25
On a fallen Fagus branch we found these bumps, sometimes black broken through, under which black perithecia are visible, without a black ring around the stroma.
The perithecia have a neck (not clearly visible in the photos) that is about as long as the bulb and lie just under the bark in the horizontal plane, usually with 3-5 together .
The spores are brown with 3 septs and show large guttulles, usually one in each segment.

Measured in water: 30.2 - 35.8 (39.6) × (10.3) 10.32 - 11.5 (11.8) µm; Qe = 3

The ascus tops show no reaction in Melzers and Congo red.

We found Prosthecium ellipsosporum, which could fit some spore size and also does not have a black rim around the stroma, only this one has been described on Carpinus and these spores have appendages.
Maybe there are other options?
Thanks in advance, Margot&Geert
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