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20-12-2025 10:49

Mirek Gryc

Hi. „I doubt it is possible to identify this ti

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

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Lasiosphaeria/Hilberina
Klaus Siepe, 13-11-2019 22:27
Hi everybody,

a friend sent me these pictures of a Lasiosphaeria/Hilberina found on Betula in Bavaria.
Asci: 130 x15µm,
Ascospores: 45-53 x 4µm, brown, 3 x septate
Setae: brown, thick-walled, septate, up to 70 x 3-4µm.


Because of the shape of the ascospores we come up to Hilberina caudata.
Meanwhile I read different descriptions about this taxon. So I'm still quite unsure, if the determination can really be right.
Munk (1957) gives ascospores of 55-68 x 6 µm (to long and to broad)
But Fuckel (1870), who described the type collection, gives ascospores of 32 x 6 µm (to short and to broad).
If the Bavarian find is not H. caudata, what else could it be?
Thank you in advance,
Klaus

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DirkW, 14-11-2019 00:30
DirkW
Re : Lasiosphaeria/Hilberina
dear klaus, i always wanted to write in english to you haha. i think this could be l./h. rufa! because of the appendix/cilia-like endings of the spores!

good night

dirk
Klaus Siepe, 14-11-2019 07:48
Re : Lasiosphaeria/Hilberina
Hi Dirk,

then in English again. H. rufa has got light brown hairs (Candoussau et al. 2001/ Bell & Mahoney 2004). Measurments of the ascospores would fit. But the appendix-like ending at one end of the spores is characteristic for all members of Hilberina. So what?!

Cheers,

Klaus
Klaus Siepe, 14-11-2019 08:41
Re : Lasiosphaeria/Hilberina
Sorry, light redbrown setae.
Andrew N. Miller, 14-11-2019 17:25
Andrew N. Miller
Re : Lasiosphaeria/Hilberina
Klaus Siepe, 15-11-2019 16:30
Re : Lasiosphaeria/Hilberina
Thanx Dirk and Andrew!!!