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28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

02-07-2025 17:26

Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

03-07-2025 20:08

Francois Guay Francois Guay

I found this interesting yellowish asco growing on

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

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bitunicate ascomycete on wood in rivulet - Lophiostoma?
Lothar Krieglsteiner, 09-08-2020 22:18
Lothar Krieglsteiner... the spores of this find (today, in the Eifel, Germany, on decorticate decideous wood, likely Alnus, in a rivulet) remind me of Lophiostoma - but he ascomata are not laterally compressed. The asci are quite long, ca. 100-120/10-13 µm, the spores about 25-32/6-7 µm large, with conspicuous oil drops. Old and dead spores tend to become brown, living spores are hyaline.
Who can provide me with a hint?
Best regards, Lothar
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Josep Torres, 10-08-2020 08:43
Josep Torres
Re : bitunicate ascomycete on wood in rivulet - Lophiostoma?
Hola Lothar.
Por opinar algo, aunque las esporas son un poco grandes, me parece apreciar una vaina mucosa, quizás Lophiostoma vagabundum, dejo un par de enlaces;

http://www.centrodeestudiosmicologicosasturianos.org/?p=10561
http://www.ascofrance.com/forum/14453/lophiostomataceae-again-on-syringa

Saludos cordiales
Eduard Osieck, 10-08-2020 11:22
Re : bitunicate ascomycete on wood in rivulet - Lophiostoma?
You may want to consider Massarina corticola and Amniculicola parva. The latter grows on submerged wood (described from Alnus) and stains the underlying wood sometimes purple. Did you note a gelatinous sheath?
Eduard
Lothar Krieglsteiner, 10-08-2020 15:56
Lothar Krieglsteiner
Re : bitunicate ascomycete on wood in rivulet - Lophiostoma?
Hello Josep and Eduard,
thank you both for your proposals - three ones :-)
I did not note a purple stain of the wood, nor did I note a gelatinous spore sheath, but maybe the latter I possibly overlooked. I will try to examine again.
Best regards and thanks again,
Lothar
Lothar Krieglsteiner, 19-01-2023 14:04
Lothar Krieglsteiner
bitunicate ascomycete on wood in rivulet - Amniculicola parva
Hello Josep and Eduard,
today I re-examined the sample and compared with all three of your proposals. 
After all, I come to the conclusion that Amniculicola parva is the right choice.
Spore length and septation, spore sheath (present!), asci, peridium structure, macroscopical appearance of ascomata, and last not least the ecology are perfectly fitting. The only obstacle is the color of the wood which is not stained red, but this is not obligatory.
Thanks again to you both and best regards, Lothar