17-01-2026 19:35
Arnold BüschlenHallo, ich suche zu Cosmospora aurantiicola Lite
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
16-01-2026 00:45
Ethan CrensonHi all, On decorticated hardwood from a New York
10-01-2026 20:00
Tom SchrierHi all,We found picnidia on Protoparmeliopsis mur
13-01-2026 07:28
Danny Newman
Chlorociboria glauca on indet. decorticate logThe
15-01-2026 15:55
Lothar Krieglsteiner
this one is especially interesting for me because
13-01-2026 08:43
Danny Newman
Tricladium varicosporioides on indet. decorticate
I have unsuccessfully tried to determine with the key Key to hysterioid fungi on bark and wood in Scandinavia, AGARICA vol. 42 103.
substrate: Picea, rotten wood, pretty much brittle, on bark
Fruiting body / habit / growth form: immersed, black, like a little mussle
Spores 1: 31.2 - 40.6 x 8.5 - 10.2 µm - Q: 3.55 - 4.10 (Ø LxB: 34.8 x 9.2 ØQ:3.8 N: 9)
Spores 2: 31.6 - 37.9 x 8.4 - 10.2 µm - Q: 3.31 - 4.32 (Ø LxB: 34.3 x 9.3 ØQ:3.7 N: 9)
Spore characteristics: 7-9fach septated, ends on old spores sometimes a little bit brighter
Ascus: biseriat
Paraphyses: filamentous
Spores : brown
Congo red: negativ
Melzers reagent: IKI-
https://fungi.myspecies.info/all-fungi/oedohysterium-insidens
according to Zogg (1962) and other authors the spores don't match perfectly but come close. they are brown and the number of cells fits.
Best regards from Bavaria
Till
I'm having trouble seeing if the ascomata are hysterioid-shaped or mytilinidioid-shpaed.
From what I can see it would be more like mytilinidioid.
A vertical section would be useful.
Thus your fungus grows on Picea. And at last, ascospores don't match. I join a paper to compare with the true Oedhysterium insidens.
I think your fungus belongs to Mytilinidiaceae.
And as I'm preparing a thesis on the subject, I'd be very happy to study it.
If you'd be willing to send me as much material as you can, here's my address:
Alain GARDIENNET
14 rue roulette
21260 VERONNES (France)
If you want you can contact me at : agardiennet@gmail.com. It's a very interesting find
Oedohysterium-insidens-0001.pdfI wonder if it could be a lophiostomataceous fungus, maybe something around Lophiostoma macrostomoides. A vertical section of the ascomata would indeed help, as you said, Alain. But soon we will know more!
Best wishes,
Gernot
Thanks,Alain
PS : Verpa bohemica is already there, Morchella deliciosa perhaps, I will check this afternoon. Morels or mussels , that's a question :)