12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
17-04-2026 19:16
Enrique Rubio
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
15-04-2026 19:33
Fátima Durán ManzanequeHi!! I need help, I found this Ascomycete but I d
14-04-2026 20:31
Gernot FriebesHi,can this be Psilachnum lateritioalbum on Phragm
12-04-2026 12:22
William Slosse
In a dune grassland in Oostduinkerke (Belgium), on
Hello all
Can anyone help me identify this unknown species?
It's probably a Betula branch? I'm not sure because I found it in a place where most trees were cut down. There were lots of branches on the ground, various types of trees.
Spore dimensions (H2O): Me = 19.8 × 7.6 µm; Qe = 2.6
Thank you in advance!
Regards
Mirek
I agree, but informations are lacking.
More you'll give informations, more you'll have answers.
Especially, please, or give a more complete description of ascospores, observed in water. Because in this genus, appendages are often present.
Concerning host, it would be better to know it exactly , and not probably. A website concerning microscopic wood anatomy can help you.
Alain
First of all, thank you Nicolas & Alain for the hints!
I did not answer for a long time, because it seemed to me that the sporocarps were unripe ripe. I haven't seen free spores.
Now I could see the spores released from ascus. All the released spores do not have polar appendages. However, spores mature in ascus have outgrowths that disappear immediately after the spores are released.
The dimensions of the spores are in the photo.
I think I marked wood well. In my opinion it could be Betula?
greetings
Mirek
Hi Mirek,
I think you should compare to Melanconis marginalis (read Jaklitsch & Voglmayr, 2020).
Perhaps the wood is Alnus alnobetula and the fungus Melanconis marginalis subsp. tyrolensis or marginalis.
I would have liked to study it, but Postal services are perhaps out.
Alain
I saw this work: Jaklitsch & Voglmayr, 2020. I also thought about the species you are proposing. My experience in this topic is too small and, unfortunately, I can not clearly determine to which genre the features of my collection fit more?
In Poland the situation is less tragic than in France. Postal services work though with some restrictions! I don't know how it is in France?
I leave the decision to you. If you think the situation is good enough to send, then let me know, or just send me the address to a private email.
Best regards and thank you
Mirek
Hi Mirek,
You can try sending a piece, but keep some material.
Then, let's wait and see.
Do you think Alnus alnobetula is possible ?
Thanks,
Alain Gardiennet
14 rue Roulette
21260 VERONNES (France)
Yes, Alnus is possible.
I will do as you say.
Mirek
HGi,
I just examined the fungus. It seems to be Melanconis stilbostoma on Betula. You saw right.
Alain
Thank you very much for your time and identification.
greetings
Mirek