26-11-2025 18:13
The entire run of Mycotaxon is now available throu
25-11-2025 14:24
Thomas Læssøehttps://svampe.databasen.org/observations/10490522
25-11-2025 11:03
Mick PeerdemanHi all,One of my earliest microscopy attempts, so
24-11-2025 15:23
Arnold BüschlenHallo, auf einer offenen Kiesfläche am Rande ein
23-11-2025 11:16
Bohan JiaHi, I found small discs growing on dead stem of
21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday

Dear friends,
last autumn I found an unknown, maybe facultative coprophilous pyrenomycete on hare dung.
It grew separately to gregarious and with it's long hairs over and over it seemed simple to determinate.
But after looking in several issues I not even know the genus!
Maybe that you can help!
Pseudothecia 0,3 - 0,5 mm, with distinctly neck and ostiolum.
Asci biseriate, 120 - 140 x 20 µm, apical ring (4 - 5 µm) a little bit turning into blue with Lugol. Unitunicate?
Ascospores hyaline, narrowly elliptically (28 - 30 x 8 - 10 µm); mature spores become 1-septate at least.
Hairs until 350 x 12 µm, brown, septate and thick-walled.
I am gratefully for each idae!
Thank you!
Norbert
did you consider Iodosphaeria? However I am unaware of a species matching your collection.
Cheers,
Jacques
This seems to be a good idea.
But all species of Iodosphaeria with those I compared have smaller and somewhat narrower ascospores.
Like you say, there is no species which agrees with my collection.
Best regards
Norbert



