22-04-2026 20:17
Marian Jagers
Is anyone familiar with the Hyphomycetes genus Pse
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
21-04-2026 13:36
Gernot FriebesHi,I am out of ideas for this one. I collected Sal
21-04-2026 13:19
Gernot FriebesHi,this Lophodermium on Typha has ascospores measu
21-04-2026 13:05
Gernot FriebesHi,this hyphomycete feels familiar but I was not a
20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
Dear friends!
Do you have some idea about the genus of this tiny disco?
I have found it on dead leaves of Quercus robur. Fruitbodies are single, small, orange-beige, 0,2-0,5 mm in diam.
I thought about Pezicula, but apical rings are blued in IKI (colourless in MLZ)
Spores are ellipsoid, 10,9-11,4*2,4-3,6 um, hyaline, with 2-3 guttules (in water, KOH).
Thank you before,
Irina
Raúl
Yes, that might be right guess....it seems to me that asci are of Calycina type reaction (although there are number of genera apart from Calycina with that type of euamyloid reaction). Perhaps a drawing of some cell types, most preferably in statu vivo (see Baral 1992 publ. in Mycotaxon, which I can send if still needed) and observation on paraphysal & excipular layer(s) structure & gelification would be sufficiently informative. Also ascogenous system type (croziers vs. simple septate) is crucial. it is not necessary to draw whole block of texture(s) or hymenia - only group of cells.
Cordially,
Neven