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09-06-2025 16:18

Sylvie Le Goff

BonjourPourrais je avoir votre avis sur cet ascome

09-06-2025 12:50

Joaquin Martin

Hi,Last week I found this Hymenoscyphus on Rubus.S

09-06-2025 22:28

Edmond POINTE Edmond POINTE

Bonjour,Apothecie pulvinée, blanche 0.4 x 1mm. As

09-06-2025 10:32

Elisabeth Stöckli

Bonjour,Trouvé sur une branche morte et décortiq

09-06-2025 16:36

David Malloch David Malloch

As far as I know, this species has yet to be assig

08-06-2025 18:03

éric ROMERO éric ROMERO

Bonjour à tous, Une récolte alpestre discrète

07-06-2025 15:39

Edvin Johannesen Edvin Johannesen

A friend sent me a few Betula seeds with tiny blac

08-06-2025 14:55

Edvin Johannesen Edvin Johannesen

Ascomata only ca. 1 mm, erumpent on very thin Sali

06-06-2025 12:12

Hans-Otto Baral Hans-Otto Baral

Dear all I want to ask you if you have any recent

04-06-2025 15:10

Stefan Jakobsson

Hi forum, On a herbaceous stem, possibly Aegopodi

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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