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11-02-2026 22:15

William Slosse William Slosse

Today, February 11, 2026, we found the following R

11-02-2026 19:28

Lothar Krieglsteiner Lothar Krieglsteiner

on small deciduous twig on the ground in forest wi

25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by JÃ

09-02-2026 22:01

ruiz Jose

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

10-02-2026 17:42

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me donner

10-02-2026 18:54

Erik Van Dijk

Does anyone has an idea what fungus species this m

09-02-2026 20:10

Lothar Krieglsteiner Lothar Krieglsteiner

The first 6 tables show surely one species with 2

09-02-2026 14:46

Anna Klos

Goedemiddag, Op donderdag 5 februari vonden we ti

09-02-2026 11:42

Ã…ge Oterhals

Hi forum, I found this Lachnum on old hardwood tw

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

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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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