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01-08-2024 13:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. on Alnus alnobetula, 16.7.24.When finding I fir

01-08-2024 17:34

Lothar Krieglsteiner Lothar Krieglsteiner

... found 21.6.24, growing on a very thin peace of

01-08-2024 12:33

Lothar Krieglsteiner Lothar Krieglsteiner

found 17.6.24, Italian Alps, on deciduous wood in

01-08-2024 15:43

Lothar Krieglsteiner Lothar Krieglsteiner

... 6.7.24, alpine situation (near Glacier), same

01-08-2024 15:00

Lothar Krieglsteiner Lothar Krieglsteiner

found on 26.7.2024 on Amelanchier ovalis-twig in a

01-08-2024 12:06

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morningThis Hypoxylon grew erumpent on branch

31-07-2024 17:33

Blasco Rafael Blasco Rafael

Hola buenas tardes, En Micobank el nombre actual

29-07-2024 13:22

Patrice TANCHAUD

Bonjour, récolte sur brindilles au sol, de bois

28-07-2024 08:48

Leandro Sánchez Leandro Sánchez

On mosses and grasses.Hairs up to 585x20 µmI thin

11-02-2012 06:50

Roland Labbé

Bonjour !  Voici une planche et une photo macro

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pyrenomycete from French Alps
Lothar Krieglsteiner, 01-08-2024 13:16
Lothar Krieglsteiner.. on Alnus alnobetula, 16.7.24.
When finding I first thought of a Trichoderma teleomorph similar to T. lixii. When cutting I got the first surprise when I saw the light-colored flesh. The flesh, by the way, was rather soft (more like in Trichoderma than in typical pyrenomycetes). Under the microscope I found polysporous asci with light brown allantoid spores with size about 5-6,5/0,8-1 µm - similar to Eutypella and similar genera. I do not have a hint - who has one?
Best regards, Lothar

(P.S. I once before had a similar experience - thinking of a soft-fleshed black Trichoderma spec. but "becoming" a fully different pyrenomycete. It was in Portugal and there was no hint - is it today?:
http://www.ascofrance.fr/search_forum/75199
  • message #79820
  • message #79820
  • message #79820
Andgelo Mombert, 01-08-2024 18:08
Andgelo Mombert
Re : pyrenomycete from French Alps
Hello,
Diatrypella sp., i think.

Andgelo
Lothar Krieglsteiner, 01-08-2024 19:01
Lothar Krieglsteiner
Re : pyrenomycete from French Alps
Hello Angelo,
thank you for your contribution. ...
Yes, this seems probable from the microscopy.
But I never found such a soft-fleshed specimen before - and no specimen that looked this way macroscopically. Maybe it can be determined still.
Best regards, Lothar
Lothar Krieglsteiner, 02-08-2024 09:11
Lothar Krieglsteiner
Re : pyrenomycete from French Alps
If it is a Diatrypella it can only be D. tocciaeana - or a new species.
I still am hesitating, because I know Diatrypella as quite hard fungi, fully immersed and usually old and destroyed when becoming free.
Hm ...