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15-11-2025 23:22

Hymenoscyphus macroguttatus? on Phytolacca
Mario Filippa

Hello,this is what I think to be Hymenoscyphus mac

14-11-2025 16:26

Small species on Cytisus scoparius
Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

15-11-2025 20:25

Cryptosphaeria ligniota?
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Nov. 2025

15-11-2025 09:21

Anamorph on Buxus.
Josep Torres Josep Torres

Hello.An anamorph resembling Capronia is sprouting

14-11-2025 18:31

literature request
Lothar Krieglsteiner Lothar Krieglsteiner

Hello,can somebody provide me with a file of:Rothe

12-11-2025 21:47

sp en restos de poda
ruiz Jose

Hola a todos, me envían esta colección en resto

12-11-2025 09:25

Pseudombrophila on soil
Viktorie Halasu Viktorie Halasu

Hello, I need help with a pale terrestric Pseudom

11-11-2025 20:16

yellow discs on a Quercus robur leaf
Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Ascomycete on Rubus.
Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Phacidium
Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

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Asco (Diatrype?) on Quercus robur
William de Jong, 14-03-2021 21:04
Hi,
I found an ascomycete on a dead attached branch of Quercus robur. Black perithecia/ostioles hidden under bark. It looks a bit like a Diatrype species. Ascus with 6-8 spores. Spore size: 20,6-26,5 x 5,8-7,4 µm; average: 23,9 x 6,8 µm.
Does anyone know a good fit for this one?
William
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Alain GARDIENNET, 14-03-2021 21:15
Alain GARDIENNET
Re : Asco (Diatrype?) on Quercus robur
Asci are bitunicate, please check out  Massarina s.l. .