21-12-2024 09:08
Castillo Joseba
Me mandan el material seco de Galicia, recolecta
21-12-2024 12:45
Marc Detollenaere
Dear Forum,On naked wood of Fagus, I found some ha
17-12-2024 12:33
Lothar Krieglsteiner
this fluffy anamorph was repeatedly found on decid
20-12-2024 20:30
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous m'aider à
20-12-2024 00:01
Francois Guay
Hi, I found this species on incubated Fir needles
20-12-2024 20:34
Enrique Rubio
Perhaps some of you can help me identify this smal
20-12-2024 17:32
Louis DENYBonsoir forumTrouvé à Belfort, 400 m altitude, s
Hi again
These small (up to 0.35 mm), superficial, hairy, scattered perithecia grew on Salix bark, The ental layer of the walls turns lilac in KOH 10%, Ascospores verrucose. I don't know its anamorphic stage.
Have you some idea for help me?
Thanks in advance
very nice specimen and images!
Maybe I know this species, I have a specimen collected by J.-P. Priou on Ulex, which resembles to yours. It could be a new genus in the Nectriaceae, which is in the course of study.
Best regards,
Christian
Hi Christian
Is the lilac reaction of the internal perithecial layer present in your specimens?
Thanks a lot
Christian
Ascospores are verrucose, mature a bit pink, some 2 times septated, 23 – 31,5(-37) x 9 11(– 12,5) µm. Asci J-, 8-spored, 80-94x14-16 µm. The innerwall purple in KOH.
your specimen seems identical to those collected by Jean Paul Priou on "pyreno" on Ulex and by Enrique on Allantoporthe tessella on Salix.
Is your specimen fungicolous?
Phylogenetic analysis places this fungus in the genus Macroconia (Nectriaceae).
All the best,
Christian
Sorry, I forgot to mention this. Indeed on stroma of Diaporthe inaqualis? or perhaps a Didymospaeria sp.? Both are rather common on this branches.
Most of the perithecia are empty so it is difficult to check without much dammage. First I hope to culture some more specimens of this Macroconia.
Thanks.
Marian
