22-04-2026 20:17
Marian Jagers
Is anyone familiar with the Hyphomycetes genus Pse
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
21-04-2026 13:36
Gernot FriebesHi,I am out of ideas for this one. I collected Sal
21-04-2026 13:19
Gernot FriebesHi,this Lophodermium on Typha has ascospores measu
21-04-2026 13:05
Gernot FriebesHi,this hyphomycete feels familiar but I was not a
Hymenoscyphus on branches of rubus?
Ralph Vandiest,
26-09-2013 18:30
Hello,
I found these stalked species on dead rubus branches. They are ivory coloured, not reddening when damaged and measure between 1&1,5mm. Spores are scuteloid 3,5/4x19/25µm and the asci are 6/10x95/103. Can anyone tell me what this is?
regards,
Ralph
Hans-Otto Baral,
26-09-2013 20:54
Re : Hymenoscyphus on branches of rubus?
I would place it in hymenoscyphus scutula, despite the apparent absence of distinct bristles at the spore ends.
Zotto
Zotto
Ralph Vandiest,
26-09-2013 22:01
Re : Hymenoscyphus on branches of rubus?
Hello Zotto,
thanks for your answer. I don't see the reddening either. Can it be because my sample is already 1 week old?
PS I will take again a look at the spores to see if I can find any bristels.
regards,
ralph
thanks for your answer. I don't see the reddening either. Can it be because my sample is already 1 week old?
PS I will take again a look at the spores to see if I can find any bristels.
regards,
ralph
Hans-Otto Baral,
26-09-2013 22:28
Re : Hymenoscyphus on branches of rubus?
Did you read about reddening? On your photpo I see slight red-brown areas. This is by oxidation of the guttules (VBs) in the paraphyses, and a general feature in Hymenoscyphus.
Ralph Vandiest,
26-09-2013 22:31
Re : Hymenoscyphus on branches of rubus?
no I didn't read about reddening but I saw it in a key to this genus. sorry, my mistake