18-05-2026 12:43
Sylvie Le GoffBonjour à tousPuis je avoir votre aide sur ce que
18-05-2026 10:13
Lieve Deceuninck
Dear forum members,I identified this as the teleom
17-05-2026 19:05
Thomas FlammerI have found this tiny 200 ym cup shaped apothecia
17-05-2026 16:41
Margot en Geert VullingsWe found this Lachnum on an old Rubus stem.Fruitbo
05-04-2026 22:46
Lothar Krieglsteiner
on wood of Ceratonia, Algarve, 3.4.2026.The color
15-05-2026 13:33
Sylvie Le GoffBonjour à tousJe serais très reconnaissante enve
16-03-2011 14:31
roman vargas albertoHi. I would like some opinion about this Peziza
14-05-2026 05:36
Ethan CrensonHi all, I haven't paid much attention to Lachnu
Valsa?
Björn Wergen,
23-07-2013 22:15
Hi there,I have found this small valsoid pyrenomycete growing on dead attached Carpinus twigs. For me, it is very strange for being a member of Valsa, as there are no visible ostioles embedded in a grey stromatic mass. Perithecia are arranged in circles.
Microscopically it has allantoid, hyaline, one celled spores of 8-10x1,8-2,4µm. Asci with a distinct apical apparature staining faintly red in Congo. The fruitbody reminds me on some Wuestneia findings...
Any ideas?
All the best,
björn
Alain GARDIENNET,
24-07-2013 08:26
Re : Valsa?
Hi Björn
Very strange. Are you sure of Carpinus ?
Any Cystospora on the same twig ?
Alain
Björn Wergen,
24-07-2013 09:46
Re : Valsa?
Hi Alain,
I am not that sure about Carpinus, it can also be Fagus. But I did not see any Cytospora on any twig I had collected.
In all Valsa collections I hadn't ever had such small spores (<10µm).
regards,
björn
I am not that sure about Carpinus, it can also be Fagus. But I did not see any Cytospora on any twig I had collected.
In all Valsa collections I hadn't ever had such small spores (<10µm).
regards,
björn
Alain GARDIENNET,
24-07-2013 10:11
Re : Valsa?
Valsa ceratosperma is perhaps possible : ascospores 6.5-10 x 2-2,5 µm. It has been seen on Betula, Quercus, Malus...
But beeks are longer .
Alain
But beeks are longer .
Alain