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05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

14-03-2026 13:51

Thierry Blondelle Thierry Blondelle

Hi everybody Under Quercus ilex, i hesitate to na

12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

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

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

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Similar to Pyrenopeziza deuncinata?
Mirek Gryc, 12-12-2025 18:39

Hello everyone.
Macrofeatures similar to Mollisia but definitely not the same genus. They grew on debarked wood of Salix sp. Ascomata maximum of 0.5-0.6 mm. The outer cells are brown but the marginal hairs hyaline. Perhaps the fruiting bodies are too young, but the spores are already well developed.
The reaction to iodine was positive, exactly the same as in the drawings on Zotto's disc in the Pyrenopeziza deuncinata catalog.
Croziers absent even though construction in some places would indicate his presence. I also saw young ascus.
The spores are also very similar in shape and content, but much wider.
(8.1) 8.8 - 10 (11.1) × (2.7) 3 - 3.35 (3.4) µm
Q = (2.4) 2.9 - 3.5 (3.6) ; N = 8
Me = 9.6 × 3.1 µm; Qe = 3.1


11,11 x 3,18
10,04 x  3,01
  8,78 x 3,01
  9,97 x 3,10
  8,09 x 3,35
  9,39 x 3,21
  9,62 x 2,66
  9,89 x 3,40


Asci: Me = 39.7 × 6.2 µm

Should I look for another type?


Regards
Mirek

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Stip Helleman, 12-12-2025 20:17
Stip Helleman
Re : Similar to Pyrenopeziza deuncinata?
Hi Mirek,

Nice finding, it looks like Olla transiens, it looks like lack of croziers and a downward hook.

Checkck the glassy parts of the hairs out for IKI reaction.

Cheers,

Stip
Mirek Gryc, 13-12-2025 06:22
Re : Similar to Pyrenopeziza deuncinata?
Hi Stip.
You're right, it will be this genre. Apparently I'm getting old and so is my memory. I've tested this species before, but this time the reaction to iodine in the hair was so weak that I didn't even notice it. I looked through the photos and I see some changes in one of them. I'll check again in the evening.
Thank you very much and best regards.
Mirek
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