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02-06-2026 14:33

Nicolas VAN VOOREN Nicolas VAN VOOREN

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Louis DENY

Bonjour forum, Sur feuille de Populus tremula, en

31-05-2026 22:53

éric ROMERO éric ROMERO

Bonjour tous, Je n'ai pas d'idée pour cette esp

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

12-11-2019 10:32

Miguel Ãngel Ribes Miguel Ángel Ribes

Hi againExactly at the same place than my previous

25-12-2019 17:54

Valencia Lopez Francisco Javier

Hola a todos/asEstas supuestas pezizas estaban en

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

28-08-2014 18:36

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que enco

30-05-2026 21:12

Philippe PELLICIER

Sur branche de mélèze (Larix) près de la neige,

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Hymenoscyphus? on branch of Aesculus - Denmark
Karen Poulsen, 13-04-2024 12:11
Hi

I found these under loose bark on a fallen branch.

Apothecia up to 3/4 mm diam, short-stalked, white to cream-coloured, some turning pale flesh-coloured. Paraphyses slightly longer than asci, tending to stick together slightly, narrowly cylindrical with expanded apex, 2-3 µm wide. In lugol with red circular spots in the upper part. The same colour you see in the excipulum. Asci J+ in apex, 8-spored, 110-130 µm x 10-12 µm. Spores spindle-shaped, perhaps more pointed at one end. With drops, (17.5)19-24(24.7)x 5-6 µm.

Best regards,

Karen P.
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Hans-Otto Baral, 13-04-2024 16:48
Hans-Otto Baral
Re : Hymenoscyphus? on branch of Aesculus - Denmark
Although white this should be Allophylaria macrospra. What you could check: The living paraphyses should contain elongated VBs (in water, you have VBs in the living excipular cells), and the asci must arise from simple septa.


Karen Poulsen, 13-04-2024 18:24
Re : Hymenoscyphus? on branch of Aesculus - Denmark
Thank you for great help! I have found it before on another tree, Populus, in the same area, so should have recognized it.

The material is from February and dried, so can't check living paraphyses.

Regards,

Karen P.