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
Having found Ascobolus carletonii on the grouse dung a lot of Sporormiella australis developed but I then came across a third species. A small black almost spherical Perithecia with a short neck sparsely surrounded by short dark pointed hairs. The spores were either narrowly ellipsoid with a germ slit or more rounded without the slit. I think it could be a Coniochaeta but although it is close to C saccardoi it does not seem a perfect fit for any species in Ellis and Ellis. The spores are 10-11.8 x 4.9-5.3 or 6.2-7.1Thanks
Mal
Good evening Malcolm.
Still a difficult genre where species are delicate to separate. On your picture of the spores one sees nevertheless that the latter are rather wide. One must be wary of the three dimensions and make numerous preparations and measure many spores. Try to see if the germ slit goes around the spore. You can also measure the asci. I do not know C.saccardoi, but Checa gives longer spore measurements.
Your mushroom could be within the size range of C.discospora.
Michel.
Mal
Michel.
Very similar to the first find with spores (10.3)11.21(12.25) x (5.2)5.68(6.5) x (6.44)7.27(7.61) 30 spores measured.
It does not fit perfectly with any in Ellis and Ellis, Keys to Dung Fungi, Dung Fungi of New Zealand or The Genus Conichaeta Checa (thanks Michel). The best fit seems to be C discospora currently synonomised with C ligniarea in the UK.
Thanks for all your help.
Mal