04-11-2025 12:43
Edvin Johannesen
Hi! One more found on old Populus tremula log in O
04-11-2025 09:07
Josep Torres
Hello.A suspected Hymenoscyphus sprouting on a thi
03-11-2025 21:34
Edvin Johannesen
These tiny (0.4-0.5 mm diam.), whitish, short-stip
28-10-2025 15:37
Carl FarmerI'd be grateful for any suggestions for this strik
03-11-2025 16:30
Hans-Otto Baral
Hello I want to ask you if you have found this ye
28-10-2025 19:33
Nicolas Suberbielle
Bonjour à tous,Je voudrais votre avis sur cette r
31-10-2025 09:19
Lothar Krieglsteiner
Can somebody provide me with a file of:Rogerson CT
Apothecia are up to 3 mm diameter with a short stalk; the hymenium is pale brown with a darker margin.
Excipulum is a textura oblita in part, with thin-walled cells in part.
Asci are 85-100 x 10 µm, with tips staining blue in IKI. Spores are single-celled, 12-14 x 4.5-5 µm, with 2 large oil bodies and many minute oil bodies.
Paraphyses are 3-4 µm wide, with oil-filled contents in the upper part.
The colour of the apothecium and other characters would appear to rule out Rutstroemia (Lanzia) luteovirescens, which is characteristic of Acer. Microscopic characters don't seem to fit well with other species found on decaying tree leaves, so I'm struggling to make an identification.
I would be grateful for any help.
Marcus
this is Rutstroemia "kalevi". You find it in folder Rutstroemia.
The name might be a creation by the late Terry Palmer, but I do not remember the etymology.
An undescribed species, though perhaps hidden under some old name, who knows.
Apparently very rare!
Zotto
Thank you. That explains why I couldn't identify it from the standard floras and keys!
Marcus