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25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

07-07-2025 19:22

David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

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Xylariaceous? with both-sided germ pore
Stefan Blaser, 10-11-2022 09:05
Hello everybody,

Any help with this one would be most welcome:


Substrate: Fagus sylvatica deadwood trunk


Macro: Perithecia 0.4-0.6 mm in diameter, black but covered with rust-colored granules. Perithecia singly at the very margin, but soon very densely packed and coalescing thus looking like a Hypoxylon species. Fruitbody yields a reddish brown KOH extract.


Micro: Asci cylindric, inamyloid, 85-103 x 5-6 µm. Spores aseptate, narrowly elliptic, equilateral, brown, smooth, with germ pore on either side, no germ slit observed, 13-16 x 4-5 µm. Perithecial wall composed of very dark colored round to angular, thick-walled cells.


Many thanks and best wishes,


Stefan

  • message #74290
  • message #74290
  • message #74290
  • message #74290
  • message #74290
Andgelo Mombert, 10-11-2022 10:58
Andgelo Mombert
Re : Xylariaceous? with both-sided germ pore
Bonjour,
Peut-être Biporispora europaea ?
Andgelo
Enrique Rubio, 10-11-2022 11:09
Enrique Rubio
Re : Xylariaceous? with both-sided germ pore
I think is a good solution, Andgelo.
Bravo!
Stefan Blaser, 10-11-2022 11:11
Re : Xylariaceous? with both-sided germ pore
Yes, indeed! case solved...

Many thanks,

Stefan
Jacques Fournier, 10-11-2022 11:16
Jacques Fournier
Re : Xylariaceous? with both-sided germ pore
once again Andgelo beat me!
Yes, Biporispora europaea, I am just surprised it never showed up on the forum.
It spreads over old stromata of H. macrocarpum and indeed mimics a Hypoxylon, but is not a Xylariaceae. Unpublished molecular results place it far from this family and make it fairly mysterious.

Cheers,
Jacques