21-05-2025 17:28
éric ROMERO
Bonjour Tous, Avec la bonne fiche cette fois (mer
19-05-2025 09:42
Josep Torres
Hello.An ascomycete photographed on April 20, spro
21-05-2025 08:31
Josep Torres
Reddish-brown, grain-like ascomata, measuring 0.7â
20-05-2025 22:15
Francois Guay
I found this ascomycete at the base of a dead fern
20-05-2025 21:36
Francois Guay
I found this Mollisia sp. on a submerged herbaceou
16-05-2025 05:47
Francois Guay
I found this super tiny hyaline asco on fir needle
11-05-2025 10:22
Karl Soler KinnerbäckFound on moist Betula wood dipped in freshwater st
18-05-2025 16:49
François BartholomeeusenDear forum members,On cow dung, between fruiting b
Helminthosphaeria?
Per Vetlesen,
01-04-2016 09:39
this asco was found on a decorticated branch of Fraxinus excelsior on the ground in Stange, Norway.
It looks a bit like a mini Helminthosphaeria stuppea, but has shorter spores, septate setae, smaller asci and smaller septate ascispores!
I have studied Miller et al. Phylogenetic relationships of five uncommon species of Lasiosphaeria and three new species in the Helminthosphaeriaceae (Sordariomycetes) and in fig 22.D there is a four-celled spore from what they call "Helminthosphaeria stuppea-like". Could it be what I have found?
Any comment is appreciated.
Regard
Per
Andrew N. Miller,
01-04-2016 15:57
Re : Helminthosphaeria?
Probably. Â H. stuppea-like things can be quite variable (morphologically and genetically), which is why we illustrated it 3 times.
Andy
Andy
Per Vetlesen,
01-04-2016 18:13
Re : Helminthosphaeria?
Hi Andy
Thank you for answering and thank you for illustrating it 3 times.
Per