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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

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

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hymenoscyphus on betula
Robin Isaksson, 30-12-2022 19:24
Robin IsakssonHi

Need help with this one found on betula. Sweden


ascomata = around 0.5mm wide, white, become reddish when drying.


spores 22-26x 4,8-5.3 um


Asci IKI + blue, asci 8 spored


stipe is around 0.5 mm


Anyone knows it?


Best regards

  • message #74754
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Hans-Otto Baral, 30-12-2022 22:25
Hans-Otto Baral
Re : hymenoscyphus on betula
This is Allophylaria macrospora. The asci should be simple-septate.
Robin Isaksson, 31-12-2022 10:23
Robin Isaksson
Re : hymenoscyphus on betula
Dear Baral,  

thank you, this one I should have ID as i see it from time to time.

best regards,