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01-03-2026 08:55

Capronia normandiniae paper
Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

01-03-2026 15:31

White apothecia on Homalothecium lutescens
Csaba Németh Csaba Németh

Hello!I found these apothecia on Homalothecium lue

01-03-2026 18:02

unidentified Helotiales on a leaf
Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 17:51

minuscule espèce fimicole
Bruno Coué Bruno Coué

Bonjour,sur vieilles crottes de sanglier en chambr

27-02-2026 17:51

Parasite de Evernia prunastri
Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

01-03-2026 14:10

Peziza varia complex?
Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

24-02-2026 00:21

Pezizale
Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

19-02-2026 17:49

Ayuda con Tarzetta sp
Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

28-02-2026 11:54

Sinensia
Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

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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