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29-01-2026 10:04

Jean-Paul Priou Jean-Paul Priou

Bonjour à tous, Marcel LECOMTE président de L'A

17-11-2009 22:22

Pablo Chacón Pablo Chacón

Bonne nuit, Voir si vous m'avez élaguée appor

07-12-2015 14:17

Zugna Marino Zugna Marino

Buon giorno a tutti, ad un primo momento, non ess

25-11-2012 20:32

Bometon Javier Bometon Javier

Ascomas cupoliformes abiertos lateralmente, himeni

25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

27-01-2026 11:43

Malcolm  Greaves Malcolm Greaves

Is anyone with experience of DNA testing able to t

26-01-2026 11:49

Margot en Geert Vullings

We found this possible anamorph on a dead Cytisus

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

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Valsa on Salix
Karl Soler Kinnerbäck, 30-01-2022 20:13
Hi! 

Need help with this Valsa on Salix, Uppsala, Sweden, 2022-01-29. 

Sp. 14-19 x 2,5-3.    Asci 8-spored.

No stromatic line as far as I can see. Was thinking about V. ambiens or sordida. 

Best regards
Karl
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Eduard Osieck, 31-01-2022 11:19
Re : Valsa on Salix
Hi,
Probably V. ambiens because V. sordida usually has much shorter ascospores: 8-12 (-15) x 1-3 um according to Hayova & Minter 1998.
Eduard
Karl Soler Kinnerbäck, 31-01-2022 13:30
Re : Valsa on Salix
Hi Eduard,

Thanks for your suggestion! It sounds resonable. I actually found V. ambiens on Acer during the same field visit but that specimen had clearly wider spores (3-4), which made me wonder if they were really the same. Is it a reasonable variation in spore size?

Best regards
Karl