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24-03-2021 12:22

Valsa/Cytospora pruinosa?
Karl Soler Kinnerbäck

This species was found on a branch of Fraxinus exc

25-03-2021 20:49

Litterature request
Peter Püwert Peter Püwert

Hi, can anyone help ? Thanks. Peter. "J. Gremmen,

25-03-2021 10:12

Paper: Ochronectria courtecuissei
Eduard Osieck

Could somebody provide a reprint (PDF) of Lechat,

25-03-2021 18:45

On the Basidiomycota hat?
Mirek Gryc

HiI pose due to a fairly unusual substrate.Does an

25-03-2021 11:12

Nemanioid - aff. minutula/anthostomelloid - on bamboo (Sinarundinaria) - Denmark (!)
Thomas Læssøe

https://svampe.databasen.org/observations/10171793

25-03-2021 10:28

Mollisia or...
Ismael Wind

These little discs on bare ( no bark) dead branch

24-03-2021 08:08

Un Helotial para identificar
Josep Torres Josep Torres

Hola.Miuy diminutos apotecios con forma de disco b

24-03-2021 19:19

Bitunicate on Ribes
Andgelo Mombert Andgelo Mombert

Bonsoir à tous, Ascomes de 1-3 mm de diamètre,

24-03-2021 16:50

Sclerotinia Sclerotiorum Ascopores SEM image
Ale Ale

Hello, I am looking for images of S. sclerotiorum

22-03-2021 14:42

Diplodia scrobiculata?
Mirek Gryc

HelloThey grew on the bark of dead pine (Pinus syl

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Valsa/Cytospora pruinosa?
Karl Soler Kinnerbäck, 24-03-2021 12:22
This species was found on a branch of Fraxinus excelsior, Uppsala, Sweden, march. 

Spores 15-19 x 4-5

I read in Ellis Ellis about Valsa pruinosa and it seemed like a good candidate.

Does anyone know if this is correct or is it perhaps another species?
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Vera Hayova, 25-03-2021 00:24
Re : Valsa/Cytospora pruinosa?
Yes, it is.
In external appearance it looks different from many other species of Valsa/Cytospora as it has no discs, only remnants of ectostroma.
Karl Soler Kinnerbäck, 25-03-2021 20:51
Re : Valsa/Cytospora pruinosa?
Thanks Vera!

Can you recommend any good article or other literature where I can read about this species?
I have not found anything myself.

Karl
Vera Hayova, 25-03-2021 22:49
Re : Valsa/Cytospora pruinosa?
Hi Karl,

Many years ago, in 1998, I published info on this species in IMI Descriptions, under prioritized at that time name Valsa cypri (now Cytospora pruinosa). You can see it attached.
I am not aware of any more recent publications. The earlier ones you can find therein.

Vera
Karl Soler Kinnerbäck, 26-03-2021 08:25
Re : Valsa/Cytospora pruinosa?
Hi Vera,

Thanks again! Very appreciated.

Karl