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26-02-2025 21:14

Thomas Flammer

I have unsuccessfully tried to determine with the

24-02-2025 11:54

Margot en Geert Vullings

We saw this Nectria-like on a barkless dead Populu

25-02-2025 16:18

Thomas Flammer

substrate: Hardwood, Rhamnusbreaking through bark

26-02-2025 21:42

Yanick BOULANGER

BonsoirPetites apothécies blanches de 0.8 à 1.5

26-02-2025 03:28

Francois Guay Francois Guay

Hi, I found this pinkish ascomycete on incubated w

14-02-2025 19:15

Tomaz Vucko Tomaz Vucko

Hello!I am trying to identify some of the unidenti

21-02-2025 20:37

Marc Detollenaere Marc Detollenaere

Dear Forum,On rotten wood of Salix, I found some M

24-02-2025 20:03

Josep Torres Josep Torres

Hi.A unlikely blue-colored fungus sprouting on the

23-02-2025 21:35

Yanick BOULANGER

BonjourVoici des petites apothécies noires de 0.2

23-02-2025 18:38

Andgelo Mombert Andgelo Mombert

Bonjour,Au sol, parmi des petites hépatiques mort

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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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