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12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

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Hymenoscyphus vacini
Zuzana Sochorová (Egertová), 07-09-2025 11:34
Zuzana Sochorová (Egertová)Hello,
I have identified this fungus as Hymenoscyphus vacini, but would like to have it confirmed.
Ascospores (19.3)19.6-20.5-21.4 (23.5) × (5)5.3-5.5-5.7 (6) µm, Q = (3.39) 3.50-3.73-3.91 (4.39); n=30.
Asci bb, H-, 95-110 x 10-11.8 µm.
Hyphae on receptacle have dark incrustations.
On strongly decayed leaves of Acer, Moravia, 6 September 2025.
Thank you, Zuzana
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Zuzana Sochorová (Egertová), 07-09-2025 11:37
Zuzana Sochorová (Egertová)
Re : Hymenoscyphus vacini
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Zuzana Sochorová (Egertová), 07-09-2025 11:39
Zuzana Sochorová (Egertová)
Re : Hymenoscyphus vacini
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Lothar Krieglsteiner, 07-09-2025 11:40
Lothar Krieglsteiner
Re : Hymenoscyphus vacini
Hello Zuzana,
I would determine this the same way, I sometimes find this on leaves of Acer pseudoplatanus. Was ist A. pseudoplatanus, too?
Surely Zotto will also write - I hope he will agree :-)
Yours, Lothar
Hans-Otto Baral, 07-09-2025 12:08
Hans-Otto Baral
Re : Hymenoscyphus vacini
Fully agreed. Very characteristic is the net of brown cortical hyphae on the excipulum. Also the growth on sceletonized leaves.
Zuzana Sochorová (Egertová), 07-09-2025 12:42
Zuzana Sochorová (Egertová)
Re : Hymenoscyphus vacini
Hi Lothar and Zotto,
many thanks to both of you!
Yes, the substrate was Acer pseudoplatanus and the fungus grew in incredible amounts in the locality - there were thousands and thousands of apothecia.
Best regards,
Zuzana
Hans-Otto Baral, 07-09-2025 16:29
Hans-Otto Baral
Re : Hymenoscyphus vacini
There is only one unpublished sequence (ITS), from HB 9590, which has no match in GenBank, even for an environmental sequence of that species.