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12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Buckwheat Pete

Hello, I'd like to ask about this older specimen:

15-04-2026 19:33

Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

14-04-2026 20:31

Gernot Friebes

Hi,can this be Psilachnum lateritioalbum on Phragm

12-04-2026 12:22

William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

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Black on Betula bark?
Mirek Gryc, 26-05-2020 09:28

Hi.
On Betula bark, I recently found a species of mushroom that I do not know.
I once saw similar ones in this forum so I thought it would be more convenient to ask you for help instead of wasting time looking.
Thank you in advance!
Mirek
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Norbert Heine, 26-05-2020 12:23
Norbert Heine
Re : Black on Betula bark?
Hello Mirek,

this should be Helminthosporium caespitosum (= Corynespora caespitosa)

Here you can compare (pages 53-56, Fig. 6)

Norbert
Mirek Gryc, 26-05-2020 13:13
Re : Black on Betula bark?
Hello Norbert

Very nicely prepared article. I haven't read it yet but the pictures themselves show that this is probably the genre.
Thank you very much and best regards.
Mirek

Hermann Voglmayr, 27-05-2020 16:31
Hermann Voglmayr
Re : Black on Betula bark?
Agreed!

Best, Hermann
Mirek Gryc, 27-05-2020 20:53
Re : Black on Betula bark?
Hi.
Confirmed twice :)
In that case, nothing remains for me but to thank both gentlemen!
Thank you very much!
Mirek