Accès membres

Mot de passe perdu? S'inscrire

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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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