28-04-2024 18:05
Bernard CLESSE
Bonsoir à toutes et tous,J'ai trouvé ce matin ce
24-03-2024 08:27
Thierry Blondelle
HiOn Hedera helix fallen branchEcological habitat:
26-04-2024 10:07
Mathias Hass
Hello, Does anyone know what this is? Found on J
24-04-2024 21:54
éric ROMERO
Bonjour, J'ai trouvé ce Lasiobolus sur laissées
23-04-2024 15:18
Lothar Krieglsteiner
... but likely a basidiomycete. I hope it is o.k.
23-04-2024 13:17
Edouard Evangelisti
Bonjour à tous, Je viens de récolter ce que je
23-04-2024 21:49
Ethan CrensonHello all, A friend recently found this orange as
22-04-2024 11:52
Zuzana Sochorová (Egertová)
Hello,I made a loan of a collection of Microstoma
11-01-2022 16:36
Jason Karakehian
Hi does anyone have a digital copy of Raitviir A (
Good eveningFound in Bern, Switzerland, near the river Aare on deer dung in culture, after 2 weeks.
I think it is a Melanospora species.
Perithecia roundish, about 350 my in diameter. Beak 250 to 500 my long, 50 my wide. Ascis very volatile. Spore-bearing part about 50 x 30 my with a clearly separated slender cylindrical stalk. 4 or 8 spores. Spores olive brown, elongated lemon-shaped, with a small germinal pore at both ends. No germinal fissure. Apical ends of the spore minimally hyaline.
Spores (19.6) 22 (23.1) x (11.2) 12 (12.8).
In von Arx & Müller - Die Gattungen der amerosporen Pyrenomyceten M. leucotricha is an option, but I am unsure.
Am I right with Melanospora and can someone help me with the species?
Greetings, Simon
Your mushroom may be a little immature, but I actually think it is Melanospora zamiae. M.brevirostris is close but the spores are larger and the beak is shorter.
Michel.
Thank you very much for your help.
In the meantime, I have noticed that M. leucotricha is a synonym of M. zamiae (Yasmina Marin-Felix et al. / MycoKeys 44: 81-122 (2018)).
In von Arx & Müller, die Gattungen der amerosporen Pyrenomyceten 1954, M. zamiae and M. leucotricha are two species. The main difference between the two species in this work is, in my opinion, the presence of germinal clefts in M. zamiae.
I have noticed that the very thin-walled spores of M. zamiae in cotton blue can colapse very quickly and give the impression of germinal clefts. Perhaps this was misinterpreted at the time.
Greetings, Simon
