Accès membres

Mot de passe perdu? S'inscrire

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

05-03-2026 16:30

François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

03-03-2026 20:34

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

02-03-2026 22:07

Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

« < 1 2 3 4 5 > »
Trichonectria on Populus wood
Matthias Reul, 12-12-2023 18:18
Matthias ReulHi altogether,

a few weeks ago Torsten Richter found the hereby presented fungus on a dead twig of Populus tremula. Despite the fact, that there were also plenty of algae on the twig, it does not seem to be lichenicolous, no lichens could be seen near the fungus. 
We thought about the genus Lasionectria first, but no species that we know or found in the literature accessible to us matches, especially the partially apically furcate hairs seem to be pretty unique. W. von Brackel pointed us towards the genus Trichonectria where T. furcatosetosa comes very close, the hairs fit very well, also the spore size and ornamentation. I tried to get fotos of the finely punctate ornamentation in cotton blue, but that was not very successful, however the punctate ornaments were clearly visible and the dead spores in the attachend document show that feature also pretty well. 
The only "problem" for the determination as T. furcatosetosa is that this species should be lichenicolous which is not the case here. 

Is there maybe someone who already found something similar or can contribute any information about the possible identification of this fungus? 
Thanks for any reply.

Matthias
Adam Polhorský, 14-12-2023 19:13
Re : Trichonectria on Populus wood
Oh great! I had this species recently (29.10), but could not ID it further than Lasionectria/Trichonectria.
Do you have the description of T. furcatosetosa? Thank you.
I also had trouble showcasing the obvious ornamentation.
My find was growing on a decorticated, attached twig of Cornus mas on a rather dense algal biofilm. There was no obvious lichen present, but I would not exclude the ID just because of this, perhaps the algae are enough.
Adam
  • message #77621
  • message #77621
  • message #77621
  • message #77621
Matthias Reul, 14-12-2023 19:48
Matthias Reul
Re : Trichonectria on Populus wood
Hi Adam,

thanks for your reply. I also thought maybe furcatosetosa is only occasionally growing on lichens, where of course algae are involved, too. I'll send you the description.
When I have time, I'll try to get some pictures of the ornaments again.

Matthias