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11-11-2025 20:16

yellow discs on a Quercus robur leaf
Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Ascomycete on Rubus.
Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Phacidium
Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Allophylaria subliciformis?
Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Leptosphaeria?
Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Mollisia sur Pinus
Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

06-11-2025 16:50

Hymenoscyphus sp?
Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Cladosporium ?
Pierre Repellin

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

04-11-2025 09:07

Hymenoscyphus on blueberry.
Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Protounguicularia transiens?
Edvin Johannesen Edvin Johannesen

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

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thyriothecia on leaves of Betula nana from Norway
Lothar Krieglsteiner, 28-07-2018 16:47
Lothar Krieglsteiner

... collected at 7.7.2018 in the National Park of Lierne (Norway -near the Swedish Border), on leaves of Betula nana in "fjell" vegetation, about 1100 m NN, together with Venturia ditricha.


Unfortunately, the spores could only be observed inside the ascus.


I looked up in Ellis & Ellis but could not find a good match.


Can somebody provide me with a proposal?


Best regards, Lothar

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Lothar Krieglsteiner, 18-12-2018 14:09
Lothar Krieglsteiner
Re : thyriothecia on leaves of Betula nana from Norway

... is there perhaps a suggestion today?


Best regards, Lothar

Paul Cannon, 21-12-2018 14:02
Re : thyriothecia on leaves of Betula nana from Norway
Are you sure this is not a Coccomyces? Possibly dentatus but it's difficult to tell from the macro images.
Lothar Krieglsteiner, 22-12-2018 12:31
Lothar Krieglsteiner
Re : thyriothecia on leaves of Betula nana from Norway

Hello Paul,


thank you very much. Yes, you are right - I fully "stood on the tube" as I would say in German slang.


Best regards, Lothar