31-01-2026 09:17
Marc Detollenaere
Dear Forum,On decorticated wood of Castanea,I foun
29-08-2025 05:16
Francois Guay
I think I may have found the teleomorph of Dendros
31-01-2026 10:22
Michel Hairaud
Bonjour, Cette hypocreale parasite en nombre les
30-01-2026 21:20
Arnold BüschlenBryocentria brongniartii und B. metzgeriae mit ihr
21-01-2026 16:32
Gernot FriebesHi,I need your help with some black dots on a lich
07-12-2015 14:17
Zugna Marino
Buon giorno a tutti, ad un primo momento, non ess
29-01-2026 10:04
Jean-Paul Priou
Bonjour à tous, Marcel LECOMTE président de L'A
Dear friends,
While sorting my last year collections I've found a tiny disco with ornamented hairs on some dicotyledon (probably, Artemisia, but I'm not sure).
Fruitbodies are 0,2-0,5 mm, cream-coloured. Excipulum textura prismatica, hairs 12-55*4,8-5,8 um, warted in upper part.
Asci IKI blue, with croziers, 23-26*2,8-3,2 um. Paraphyses lanceolate.
Spores elongated, 5,8-8,2*1,6-2,2 um, with few small oil drops.
With Raitviir 2004 I got a Cistella hungarica.
With best regards,
Irina
For me your find looks like Cistella grevillei (II).
You can search for flexuose hairs (it seems so in your collage the right picture) und blue medulla with IKI. But the hairs should be septated.
Regards
Ingo W
Thank you, Ingo,
In Raitviir's (2004) description of C. grevillei spores are longer (8-10 um) and the same goes for ascus (43-56 um long) and hair (30-75 um) size...
Tomorrow I'll check whether hairs are septate.
With best wishes,
Irina
best wishes
Chris