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17-07-2025 11:55

Una para ID 833
Castillo Joseba Castillo Joseba

De ayer en bosque de hayas y abetos, en tieraEjemp

16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Nectria
Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

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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