25-02-2017 18:27
Roland LabbéBonjour !Voici un asco que nous croyons être un N
01-03-2017 18:48
Danny Newman
Collected and photographed by Alan Rockefeller.
28-02-2017 11:43
Luc Bailly
Bonjour à tous, Il est (plus que) temps pour moi
28-02-2017 21:50
Bernard CLESSE
Bonsoir à tous,Trouvé récemment ce que je pense
28-02-2017 12:45
Stephen Martin
Hi, this is my first Hypomyces that I am researchi
27-02-2017 20:03
Amadej Trnkoczy
Hi,May be somebody more experienced can help me. I
27-02-2017 20:05
Alain BRISSARDBonsoir à tous Sur crottin de cheval (horse dung
27-02-2017 13:15
Jan-Arne MentkenHi everyone,two days ago I found this pretty small
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
