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05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

07-07-2025 19:22

David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

02-07-2025 18:45

Elisabeth Stöckli

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

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

03-07-2025 18:40

Castillo Joseba Castillo Joseba

me mandas el material seco de Galicia (España) re

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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