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18-08-2025 16:01

Lothar Krieglsteiner Lothar Krieglsteiner

.. on water-soaked Betula wood lying in a small st

18-08-2025 15:35

Lothar Krieglsteiner Lothar Krieglsteiner

.. in subarctic forest at side of small stream, ac

18-08-2025 15:17

Lothar Krieglsteiner Lothar Krieglsteiner

... on 6.7.25 in a subarctic mire near a small lak

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

31-12-2021 12:12

Georges Greiff

Happy New Year to All! I was hoping somebody coul

15-08-2025 12:47

Philippe PELLICIER

Bonjour, j'ai récolté cette Scutellinia au Col d

15-08-2025 21:50

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

13-08-2025 12:17

Castillo Joseba Castillo Joseba

De ayer en la misma muestra que el Ascobulus anter

13-08-2025 22:41

Francois Guay Francois Guay

I found this species on decaying wood in Québec,

14-08-2025 17:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.In the course of forthcoming paper about Geo

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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