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29-06-2016 15:18

Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 15:04

David Chapados David Chapados

Hi! Could someone help me identifying this specim

06-04-2026 21:36

Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

05-04-2026 20:40

Robin Isaksson Robin Isaksson

Hi!Found i Japan on bark of Abies sp. Spores 35-4

06-04-2026 08:15

Lothar Krieglsteiner Lothar Krieglsteiner

some days ago, on the lower surface of leaf of Que

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Hypoxylon sp.?
Mirek Gryc, 20-10-2021 08:29
Hello all.
I would ask for help in identifying this Hypoxylon.
I'm not sure about the substrate but it was probably wood Fraxinus?
Due to the color of the extract in Koh, I can not match any species.
Wondering, a very capricious reaction to iodine. After applying only Lugol, I found only a few Ascus on which a blue color occurred. Only after the pre-treatment in KOH, the reaction was clearly visible.

regards
Mirek

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Mirek Gryc, 21-10-2021 19:33
Re : Hypoxylon sp.?
I probably were overworked and had problems with logical thinking?
I think that the features match Hypoxylon rubiginosum.
Someone will confirm?
Mirek
Ethan Crenson, 21-10-2021 21:48
Re : Hypoxylon sp.?
That's what I was thinking.
Mirek Gryc, 22-10-2021 09:20
Re : Hypoxylon sp.?
Hi Ethan.
Sometimes even quite frequent species make problems identifying and especially for people who are just starting to study such a kind, I unfortunately belong to such.
All the more I am glad that I managed to correctly determine the species.
She also helped me a second collection which I studied yesterday. Her qualities were 100% compatible with the descriptions of this species. Despite the small differences, I decided it was the same species.
Best wishes and thank you.
Mirek