
14-07-2025 11:20

Bonjour, Voici une espèce de (?) Hyaloscyphace

16-01-2023 21:31

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52
Gernot FriebesHi,I wanted to share this collection on Rubus idae

14-07-2025 13:37
Gernot FriebesHi,do you think this collection could be R. ulmari

14-07-2025 11:19

Bonjour, Voici une espèce de (?) Hyaloscyphace

12-07-2025 16:45

Bonjour à tous,J'avais d'abord pensé à des stro

05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o
On medium size (40-70 mm in diam.) felled branches of Alnus glutinosa lying on the ground
I have found many inmersed, at first hyaline later greenish, perithecia that no
are into a clearly definited stroma. No ventral black lines. The necks are protruding across a well visible greyish disc.
The asci have an apical refringent apparatus and they are abruptly contracted at their base
(Diaporthales). No paraphyses I have seen. The ascospores are hyaline, later greenish, 1-(0) septate, very polimorphic, with some aberrant forms. No appendages. The spores are surrounded by a gelatinous sheath.
Dispersed between the perithecia they are many inmersed greenish conidiomata that could
be the anamorphic state of this fungus.
What do you think?
Thanks again

I have tried to find out your finding for several hours yeasterday, but without success. I think it belongs to Melanconidaceae and probably near Massariovalsa, a genus with quite darker spores. According to Barr 1978 (Diaporthales and its segregates), your fungus matches the genera Massariovalsa, Hercospora and Hapalocystis, this because of the small layer of a gray stromatic tissue right under the surface, embedding the perithecia into wood and not into a stroma. I have also checked several original descriptions of species of aforementioned genera but without any matching conclusion. Probably a new species, perhaps Walter will say something about it :)
btw: you can put this one into the dropbox, too. Many thanks.
regards,
björn