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21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 07:05

Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

15-12-2025 12:34

Danny Newman Danny Newman

indet. Rhytismataceae on oak leafnear Purchase Roa

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

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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