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18-12-2025 21:17

Two collections of yellowish discs on bare ground
Pol Debaenst

The identification took me to Byssonectria deformi

15-12-2025 07:09

indet. Rutstroemiaceae sp. on unk. fallen leaves
Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Peziza vers varia ?
Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Polydesmia fructicola ?
Bruno Coué Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

18-12-2025 18:07

Phaeoisaria like?
Margot en Geert Vullings

These plumes were found on rotten wood.They strong

17-12-2025 18:35

Asexualfungi I : a book announcement
Michel Hairaud Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

Mollisia sp.
François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Melanospora cf. lagenaria on decaying polypore
Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Unknown anamorph
Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Pyrenopeziza deunicinata c.f. ??
Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

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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
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Perz Piotr, 28-08-2009 15:21
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Perz Piotr, 28-08-2009 15:21
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Perz Piotr, 28-08-2009 15:22
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Perz Piotr, 28-08-2009 15:22
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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.