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 17:47
Thomas Læssøesee: https://svampe.databasen.org/observations/10
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
02-07-2020 16:05
Thomas Læssøesee: https://svampe.databasen.org/observations/10
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
