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
Good evening everyone,
On dung of deer I found a small Ascobolus barrel-shaped, with a light yellow colour ,asci of about 95x16µ and warted ellipsoid spores of about 24x10.5µ. A part of the excipulum had a brown colour.
Spores seemed to large for hawaiiensis. Following the key in Van Brummelen I arrived at boudieri
Marc
I think it is nearest to A. hawaiensis
I am also thinking of A.hawaiiensis.
Michel.
Hello Enrique and Michel,
The large warts are indeed an argument pro hawaiiensis, but following Doveri and Van Brummelen the spores are too large (max 20.5-21µ) and the brown excipulum should also point towards boudieri ( key Van Brummelen 1967, 67-68).
Are the warts the most important element?