05-07-2020 18:06
Castillo Joseba
Me mandan el material seco de Galicia, recolectado
05-07-2020 10:31
Castillo Joseba
me mandan el material de Galicia, recolectado en h
03-07-2020 17:47
Thomas Læssøesee: https://svampe.databasen.org/observations/10
27-06-2020 13:21
Hardware Tony
I wondered if anyone could help me with this ascom
04-07-2020 14:34
Zuzana Sochorová (Egertová)
Hello, I would like to ask you for help with idet
03-07-2020 21:06
Castillo Joseba
me mandan el material seco,, recolectado en plante
03-07-2020 20:54
Castillo Joseba
me mandan el material seco recolectado en rama de
03-07-2020 22:51
Viktorie Halasu
Hello,I'd like to ask for help with a lichen. In w
02-07-2020 21:45
Castillo Joseba
me mandan el material seco, recolectado en tallo
Hymenoscyphus vernus?
Juuso Äikäs,
22-05-2020 17:45
The asci seemed to be without croziers. I got almost no reaction with Melzer's but with Lugol's there was a fairly clear blue reaction with the apical pore.
Spore measurements: (7.6) 8.3 - 12.2 (13.3) × (3.4) 3.5 - 4.3 (4.4) µm
Q = (2) 2.3 - 3.1 (3.5) ; N = 16
Me = 10.3 × 3.8 µm ; Qe = 2.7
So does this fit H. vernus or might this be something else? I've found Cudoniella clavus before in the same stream last summer but I think this is something different. That finding had croziers and the stems were brown towards the base.
Hans-Otto Baral,
22-05-2020 20:37
Re : Hymenoscyphus vernus?
Yes, this is a good fit. A dark base is typical for H. vernus, not sure if it occurs also in C. clavus. Genetically the two species are surely congeneric, but the absence of croziers and the narrower, more cylindrical spores are typical of H. vernus.
Juuso Äikäs,
22-05-2020 20:50
Re : Hymenoscyphus vernus?
Ok, many thanks! I looked at a couple ascocarps with 20X magnification and the base of the stem was blackish. The C. clavus that I've found had more a medium brown than a blackish base.
Hans-Otto Baral,
22-05-2020 21:16
Re : Hymenoscyphus vernus?
This is exactly the current case.