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31-03-2015 23:16

Bernard CLESSE Bernard CLESSE

Sur tige d'ortie (Urtica dioica) pourrie.a) asques

04-04-2015 09:14

dominique barry

BonjourJe suis à la recherche de fructifications

02-04-2015 22:41

Jenny Seawright Jenny Seawright

Hello all, I found a patch of Nectria on a living

03-04-2015 18:08

Alain GARDIENNET Alain GARDIENNET

Bonjour à tous, Périthèces sphériques noirs s

01-04-2015 22:04

Bernard CLESSE Bernard CLESSE

Sur écorce vivante de saule.Au microscope, des co

01-04-2015 19:05

Gernot Friebes

Hi, I have got material of two Helicogermslita spe

02-04-2015 21:38

Castillo Joseba Castillo Joseba

Me envian desde Galicia una muestra de este hongo.

01-04-2015 17:58

Bernard CLESSE Bernard CLESSE

Sur hépatique à feuilles (Calypogeia), sur talus

29-03-2015 23:46

Jenny Seawright Jenny Seawright

Hi all, From appearance and conidia size (4-5 x 1.

28-03-2014 23:13

Nick Aplin

Salut à tous, On 26/3/2014 I found some little p

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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