04-06-2025 15:10
Stefan JakobssonHi forum, On a herbaceous stem, possibly Aegopodi
03-06-2025 20:52
Stefan BlaserHello everybody, I didn't get anywhere with this
20-05-2025 22:15
Francois Guay
I found this ascomycete at the base of a dead fern
30-05-2025 17:54
Louis DENYHello forum!Touvé près de Belfort, altitude 350m
31-05-2025 00:51
Ethan CrensonHello, Last week in New York City this Orbilia wa
30-05-2025 17:55
Louis DENYHello forum!Touvé près de Belfort, altitude 350m
30-05-2025 12:53
Gernot FriebesHi,I'm struggling to find a name for this species.
Pyrenomycete on Sorbus aria
Gernot Friebes,
24-03-2015 10:29
I'm looking for help with this pyreno found on a branch of Sorbus aria lying on the ground.
Stromata without much of a defined shape or form; they are black, somewhat effused, smooth but with irregular outline and a bumpy surface due to the individual perithecia. The perithecia have a papillate ostiolum. Asci long cylindric, thin-walled and filled with numerous droplets when immature, no apical apparatus observed, IKI negative, 8-spored. Paraphyses filiform, up to 2.5 wide, tapering a little bit towards the apex. Ascospores hyaline, smooth, without sheath or appendages, usually with 1 transverse middle septum which can be difficult to observe, sometimes aseptate, only rarely somewhat constricted at the septum, (7.5)8-11(15) x 2-2.5 µm.
Not a very distinctive fungus but I'm hoping that someone might recognize it...
Best wishes,
Gernot
