09-12-2023 10:26
Pablo P. DaniëlsBuenos días,Encontré un lophodermium en las hoja
07-12-2023 22:14
Louis DENYTrouvé à Belfort, altitude 400m, dans une forêt
05-12-2023 22:27
Viktorie Halasu
Hello, I was given a Sowerbyella which, after exa
04-12-2023 19:29
Dirk GerstnerHello everyone, I found the following small black
06-12-2023 23:20
Wim de GrootThis is my forst upload. We found this little stal
25-11-2023 14:49
Kees van Oorde
Very small fruiting bodies on affected leaves. Fou
01-12-2023 21:54
Marian Jagers
Does anyone recognize this species? Apothecia in
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
