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23-06-2025 13:25

Subalpine Scutellinia
Enrique Rubio Enrique Rubio

I would like to hear your opinion on this Scutelli

25-06-2025 16:56

Scutellinia cejpii ?
Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

25-06-2025 16:25

Cup fungus - Request for help
Thomas Flammer

My first impression was sth like Rutstromeia, but

24-06-2025 22:29

California Subalpine Snowmelt Fungi
Danny Newman Danny Newman

Hello AscoFrance, I have recently photographed, c

24-06-2025 14:00

Ascomycete on bat poop in cave
Warre Van Caenegem

I'm currently in Croatia doing fieldwork that is n

23-06-2025 04:03

Sulfur yellow tiny asco on hardwood
Francois Guay Francois Guay

Hi, I found this tiny sulfur yellow asco growing o

22-06-2025 13:52

Peziza acroornata - Literature request
DirkW DirkW

Dear friends,anyone out there with this paper?:DOU

26-05-2025 18:09

Cytospora spec./ Valsa spec.
Henk Remijn

Good day,In a burned forest near Hulst on the bord

21-06-2025 22:27

Calycina?
David Chapados David Chapados

Hi,Is this a Calycina? C. herbarum?Growing on an h

20-06-2025 08:33

Ascomycete on a herbaceous stem.
Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

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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 ...