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23-04-2025 19:58

Francois Guay Francois Guay

I found this interesting Orbilia sp. one year ago

23-04-2025 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon Looking for Octospores / Lamprospo

22-04-2025 10:37

François Bartholomeeusen

Also found on April 18, 2025 on an old seed-pod of

22-04-2025 09:35

François Bartholomeeusen

Dear forum members, Can someone help me!On April

23-04-2025 12:13

Johannes Merz Johannes Merz

Hi,maybe someone has an idea regarding this asco/l

23-04-2025 10:47

Lothar Krieglsteiner Lothar Krieglsteiner

found first by my wife, some days ago, two days la

29-03-2025 05:45

Sebastien Basso

Hello, I'm conducting a mycological inventory in

22-04-2025 21:46

Francois Guay Francois Guay

I found this strange "discomycete" three days ago,

22-04-2025 14:19

éric ROMERO éric ROMERO

Bonjour à tous, Je sollicite votre aide et vos r

21-04-2025 10:52

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España), recole

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Lophiostma spec.
Thomas Flammer, 26-02-2025 21:14

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-

  • message #81713
  • message #81713
Till Lohmeyer, 26-02-2025 22:26
Re : Hysteroid fungus on wood of Picea
Did you try Oedohysterium (Hysterium) insidens?


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
Alain GARDIENNET, 27-02-2025 18:00
Alain GARDIENNET
Re : Oedohysterium insidens
Hi, 

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

Alain GARDIENNET, 27-02-2025 18:02
Alain GARDIENNET
Re : Oedohysterium insidens
here's the paper I wrote a few years ago. It gives a good idea of what O. insidens is.
Thomas Flammer, 27-02-2025 21:23
Oedohysterium insidens
I will dispatch the entire sample material to you by tomorrow. Regards.
Gernot Friebes, 28-02-2025 10:03
Re : Oedohysterium insidens
Hi,

I 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
Alain GARDIENNET, 28-02-2025 10:14
Alain GARDIENNET
Re : Oedohysterium insidens
Exact Gernot ! Apex of lophiotomoid ascomata can be "mytilinidiod" .L. macrostomoides on Picea would be  curious, but why not ?
Thanks,Alain

PS : Verpa bohemica is already there, Morchella deliciosa perhaps, I will check this afternoon. Morels or mussels , that's a question :)