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21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Malcolm  Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

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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

  • message #60022
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  • message #60022
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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!!!