04-10-2024 17:08
Birgit LüthjeI just found a very similar ascomycet on a heap of
03-10-2024 20:56
Margot en Geert VullingsThese orange discs were found in September on mois
01-10-2024 17:02
B Shelbourne
• Habitat and macro suggest Chlorociboria.• P
01-10-2024 16:15
Lothar Krieglsteiner
.. on deciduous twig, on and near old specimens of
08-09-2024 21:31
B Shelbourne
• Stromatised substrate and macro like genus Rut
26-09-2024 17:25
Hans-Otto Baral
Does someone have a pdf of this paper? I have it
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.
Hans-Otto Baral,
13-04-2024 16:48
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.