07-01-2026 22:22
Danny Newman
Tatraea sp. on indet. hardwood The Swag, Great Sm
07-01-2026 17:29
Marc Detollenaere
Dear Forum,On a barkless Populus I found some smal
10-11-2021 17:33
Riet van Oosten
Add-on topic http://www.ascofrance.com/forum/7059
07-01-2026 10:24
Danny Newman
Pezicula sp. on indet. hardwood Appalachian Highl
07-01-2026 10:05
Danny Newman
cf. Chaetospermum on XylariaCosby Campground, Grea
02-01-2026 17:43
MARICEL PATINOHi there, although I couldn't see the fruitbody, I
04-01-2026 17:45
Stephen Martin Mifsud
I was happy to find these orange asmocyetes which
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