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10-09-2012 20:38

Peter Thompson

Hello Everyone,I have been trying to find informat

11-09-2012 09:41

Cacialli Gabriele Cacialli Gabriele

Bounjour aux amis d'Ascofrance... Pour une monogra

10-09-2012 20:33

Enrique Rubio Enrique Rubio

Hello my friendsI present you a new problem with t

08-09-2012 21:24

Enrique Rubio Enrique Rubio

Hi againThis fungs has superficial, gregrious, pyr

09-09-2012 18:12

Enrique Rubio Enrique Rubio

Hi to everybody:On a copious and cottony white su

09-09-2012 00:04

Esquivel-Rios Eduardo

Hi all.This small specimen was found in the  soil

08-09-2012 16:09

Peter Welt Peter Welt

Search magazine articles two: Documents Mycologiq

08-09-2012 01:35

Esquivel-Rios Eduardo

Hi all.Here a curious ascomycete , found growing i

06-09-2012 21:23

Chris Yeates Chris Yeates

Bonsoir touswhile putting together the 'fungus por

28-08-2012 11:49

Bernard Declercq Bernard Declercq

Bonjour,Qui pourrait me fournir une bonne descript

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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

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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