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31-07-2025 16:32

Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

06-08-2025 08:56

Antonio Ezquerro Antoñana Antonio Ezquerro Antoñana

Hola a todos, Me gustaría saber qué opinan sobre

12-02-2012 11:31

Hans-Otto Baral Hans-Otto Baral

Hi allI am quite sure that nobody has a pdf of thi

02-08-2025 12:35

éric ROMERO éric ROMERO

Bonjour tous, J'ai trouvé sur pétiole de Fraxin

02-08-2025 17:21

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche la description et la planche

30-07-2025 20:52

Bohan Jia

Hi together,  I've been looking posts in AscoFra

30-07-2025 10:12

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

30-07-2025 18:06

Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

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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
  • message #74754
  • message #74754
  • message #74754
  • message #74754
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,