09-11-2025 13:20
Josep Torres
Hello.A tiny ascomycete, appearing as erupting gra
08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
Bonsoir tousa dematiaceous hyphomycete has appeared around the end of a small indet. twig collected as part of an aero-aquatic style collection (from anaerobic swamp). Images attached, all in unstained lactophenol, except where indicated. Again it has (potentially) good characters:
* conidia formed simply, sympodially, schizolytically at the top of an unbranched conidiophore
* conidia forming long chains, which break up in water mounts
* conidia with truncate ends (sometimes a central point/hump can be seen - arrowed)
* conidia 3-septate, maturing with one or two darker central cells
* conidia 21.7-27.7 x 5.0-5.7µm
I've tried keying it out several times, and searched through the plates in Seifert et. al. to no good purpose. I suspect it may be undescribed, but if anyone has any suggestions I would be very grateful.
Amitiés
Chris
