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25-03-2026 22:23

Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

25-03-2026 22:21

Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

25-03-2026 20:53

François Bartholomeeusen

Dear forum members,On 23 March 2026, I found sever

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 15:06

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

25-03-2026 13:54

Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

25-03-2026 15:46

Michel Hairaud Michel Hairaud

Bonjour, Je sollicite de l'aide pour cette récol

24-03-2026 19:59

William Slosse William Slosse

Hello everyone,On 23/03/26, I found the following

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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!!!