09-06-2025 10:32
Elisabeth StöckliBonjour,Trouvé sur une branche morte et décortiq
09-06-2025 16:36
David Malloch
As far as I know, this species has yet to be assig
08-06-2025 18:03
éric ROMERO
Bonjour à tous, Une récolte alpestre discrète
07-06-2025 15:39
Edvin Johannesen
A friend sent me a few Betula seeds with tiny blac
08-06-2025 14:55
Edvin Johannesen
Ascomata only ca. 1 mm, erumpent on very thin Sali
04-06-2025 15:10
Stefan JakobssonHi forum, On a herbaceous stem, possibly Aegopodi
Does anyone have an idea what this fungus might be? Substrate is decorticated trunk of Fagus sylvatica in a forest of Abies alba, Fagus sylvatica, Acer pseudoplatanus and Picea abies. Living ascospores measure 11,7-16,5/6,3-7,1 microns. Spores rapidly die in IKI and are 4,5-6,0 microns wide. Visibility of the apical ring was only enhanced by IKI in water but seemingly with only grey shade and without blue colouration. We consulted Munk (1957), RWG Dennis (1980) and Wehmeyer (1933).
Nice regards to all,
Ivana
?
Dear Ivana
I think, you have Eutypa flavovirens with associated fungicolous fungus Didymosphaeria conoidea
Alex
Didymosphaeria-conoidea-Niessl-0002.doc:-))) Thank you for your help! When we cut stroma with perithecia we thought it is Eutypa flavovirens because of the green colour. But, we didn't see any Eutypa spores! Only this Didymosphaeria.... It's obvoius now why we couldn't find anything with these characters in the literature.
Best regards,
Ivana
regards,
björn
Thanks for your kind reply. All spores were hyaline and smooth. ?Also quite larger than in description attached by Alex.
Ivana