07-06-2026 15:10
William Slosse
Hello everyone,On 05-06-26, I found following asco
07-06-2026 12:09
François Freléchoux
Bonjour, Voici une brève description de ce qui m
05-06-2026 11:02
Thomas Læssøehttps://svampe.databasen.org/observations/10596691
07-06-2026 12:43
Steve ClementsBojour. This was a strange find on a stick on my
12-07-2015 00:05
Nedim Jukic
This one from the same locality as the previous on
06-06-2026 17:44
Steve ClementsBonjour, This disco was on planed wood 3 x 1.5 cm
14-08-2016 23:15
Alex Akulov
Dear friendsCan you help me to find the descriptio
04-06-2026 11:36
Gernot FriebesHi,found on Vaccinium myrtillus.Asci: IKI –, 8-s
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