06-05-2026 11:25
Castillo Joseba
Me mandan el material seco de Galicia (España) re
06-05-2026 17:23
Thomas Læssøehttps://svampe.databasen.org/observations/10594257
28-04-2026 20:07
Lothar Krieglsteiner
... on twig in the air at standing Ceratonia siliq
05-05-2026 22:40
Gernot FriebesHi,I believe this is a Plagiostoma growing on a Sa
04-05-2026 18:13
Stephen Martin Mifsud
ID request for what seems to be a true aquatic fun
04-05-2026 16:39
Stephen Martin Mifsud
ID request: This specimen was collected in Malta o
28-07-2011 18:31
Alex Akulov
Dear FriendsToday I made the pdf file of Velenovsk
04-05-2026 09:50
Castillo Joseba
Me mandan el material seco de Galicia,(España) re
02-05-2026 12:42
Alain BRISSARDBonjour à tousJeuidi 30 avril dernier on m'a remi
this puzzling species was handed to me. It grows on decorticated, dry, sun-exposed wood of a fallen oak tree. The ascomata are very variable, sometimes +- globose and solitary, other times clumped together or somewhat immersed in the wood. The asci are filled with numerous tiny, hyaline, ellipsoid ascospores which measure just about 2 x 1 µm. The asci appear to be bitunicate, they are widest close to the base and have a short but distinct stipe. Interestingly, they show a bluish reaction to KOH+IKI. We are thankful for any ideas!
Best wishes,
Gernot
(Photos are not mine)
the person who collected this fungus has only observed these tiny spores but I'm not sure... I haven't studied the material thoroughly myself yet. Do you have any idea if we assume these are in fact conidia?
Best wishes,
Gernot
Not idea for the moment, but one can have fungi for which it's possible (in Nectriaceae family for example).
Your fungus macroscopically looks like Bertia.
Alain
this is just a quick update for anyone interested in this fungus. I was able to identify it as Moristroma quercinum, or at least it seems to be this species based on gross morphology and ecology. See here for more information: https://www.researchgate.net/publication/226350012_New_species_of_Moristroma_Ascomycetes_and_phylogenetic_position_of_the_genus
Best wishes,
Gernot
Thanks for the information Gernot,
Alain
I think I already came across a very similar fungus in the past but I had no clue about its systematic position. Bjorn's paper is excellent and leaves no doubt about the identification.
Great!
Jacques