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18-12-2025 21:17

Pol Debaenst

The identification took me to Byssonectria deformi

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Bruno Coué Bruno Coué

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

18-12-2025 18:07

Margot en Geert Vullings

These plumes were found on rotten wood.They strong

17-12-2025 18:35

Michel Hairaud Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

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White asco
Milan Malek, 08-04-2025 21:36
Milan MalekHello forum,
could you help me with this asco?
Found on 23.9.2024 in the Czech Republic on dead branch of indeterminate herb, under firs and other trees on stream bank.
Apothecia thin, white, 3 mm in diameter, with a short stipe. 
Asci 73-92 x 6-7 um with slightly IKI+ ring, paraphyses 1-2 um wide, spores 9-12,5 x 3-4 um.
Thank you in advance.
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Hans-Otto Baral, 08-04-2025 22:01
Hans-Otto Baral
Re : White asco
This is difficult to say without vital characteristics. Is the entire excipulum hyaline? at the lower flanks also prismatic?

The apical ring schoul dbe photographed in IKI, the shape might be helpful.
Milan Malek, 09-04-2025 18:50
Milan Malek
Re : White asco
Thank you very much for aou answer.
Entire excipulum is not hyaline, it is prismatic also in the lower flanks.
I added a photo of the apical ring in IKI.
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Hans-Otto Baral, 09-04-2025 20:12
Hans-Otto Baral
Re : White asco
Yes, this is Hymenoscyphus-type. Not hyaline means pigmented?

From spore size and shape it could be Hymenoscyphus imberbis?

The living paraphyses are required, they contain characteristic VB-guttules in that species.
Milan Malek, 10-04-2025 14:01
Milan Malek
Re : White asco
Thank you Hans-Otto for your answer.
I did not see any pigment in excipulum.
Milan
Hans-Otto Baral, 10-04-2025 15:00
Hans-Otto Baral
Re : White asco
So you must delete your "not" in your previous mail.