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27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

25-03-2024 03:56

B Shelbourne B Shelbourne

• Scuttelinia: Macro and habitat.• S. scutella

25-03-2024 20:21

DAVID MARCOS DAVID MARCOS

Bonjour, je m'appelle David et je débute dans l'i

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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.