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23-12-2024 14:37

¿Capronia?
Josep Torres Josep Torres

Hello.Some tiny globose black ascomata found on De

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Hymenoscyphus look like?
Rot Bojan

Hello!I've been working with this small fungus for

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Question about Hypomyces species
Lucian Clanet Lucian Clanet

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Hyalopeziza-like on Fagus
Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

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Neottiella?
Charles Aron Charles Aron

Hi All, Recently I found this orange Disco growin

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Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous m'aider à

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pseudotricharina
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Lothar Krieglsteiner Lothar Krieglsteiner

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Simon Gurtner Simon Gurtner

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Protounguicularia transiens sur Populus x canadensis
Bernard CLESSE Bernard CLESSE

Pourriez-vous me confirmer ma détermination de ce

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Trichonectria sp. on Ustulina deusta
Perz Piotr, 28-08-2009 15:21
Hallo,

I found this nice Trichonectria on stromata of Ustulina deusta:

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Perz Piotr, 28-08-2009 15:21
Re:Trichonectria sp. on Ustulina deusta
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Perz Piotr, 28-08-2009 15:21
Re:Trichonectria sp. on Ustulina deusta
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Perz Piotr, 28-08-2009 15:21
Re:Trichonectria sp. on Ustulina deusta
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Perz Piotr, 28-08-2009 15:21
Re:Trichonectria sp. on Ustulina deusta
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Perz Piotr, 28-08-2009 15:22
Re:Trichonectria sp. on Ustulina deusta
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Perz Piotr, 28-08-2009 15:22
Re:Trichonectria sp. on Ustulina deusta
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Perz Piotr, 28-08-2009 15:25
Re:Trichonectria sp. on Ustulina deusta
The spore sizes are somewhat similar to T.rectipila, but a little to thick and the hairs are much to small.... but I does not have describtion of fungicolous members of Trichonectria (Samuels 1988)

There is NO KOH reaction, the perithecjum wall is thin, the perithecjums cells are thick-walled, hairs are thick-walled, walls remain refractivity in KOH. Hairs (0-) 1-septate !

Assoc. with ?Cosmospora. Any idea please?

Best wishes
Pimpek
Gary Samuels, 28-08-2009 17:18
Re:Trichonectria sp. on Ustulina deusta
It is very pretty. I have not seen it before. Are you certain that the asci are not bitunicate?
Perz Piotr, 28-08-2009 17:36
Re:Trichonectria sp. on Ustulina deusta
>> Are you certain that the asci are not bitunicate?

Oh no! I'm not sure :( ;(
I can test it on herbarium specimens or next week I can test it on fresh collection.