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02-05-2026 13:06

Pauline. Penna

Bonjour  Please can someone help me with this id

02-05-2026 12:42

Alain BRISSARD

Bonjour à tousJeuidi 30 avril dernier on m'a remi

01-05-2026 22:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous, Une récolte sur bouse séchée d

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

14-04-2026 05:32

Ethan Crenson

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

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

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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
  • message #71663
  • message #71663
  • message #71663
  • message #71663
  • message #71663
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