21-01-2026 16:32
Gernot FriebesHi,I need your help with some black dots on a lich
21-01-2026 16:48
Gernot FriebesHi,after my last unknown hyphomycete on this subst
20-01-2026 17:49
Hardware Tony
I offer this collection as a possibility only as e
15-01-2026 15:55
Lothar Krieglsteiner
this one is especially interesting for me because
17-01-2026 19:35
Arnold BüschlenHallo, ich suche zu Cosmospora aurantiicola Lite
16-01-2026 00:45
Ethan CrensonHi all, On decorticated hardwood from a New York
18-01-2026 12:24
Hello.An anamorph located on the surface of a thin
Large-spored Propolis on Populus tremula
Edvin Johannesen,
15-01-2021 18:27

Spores measuring (40-) 43-47 x 10-12 microns. Two large LBs and many small (occasionally one or two intermediate). Is P. betulae the correct name for this? Or P. versicolor var. betulae?
Found in Central Norway, on aspen.
Thanks.
Hans-Otto Baral,
15-01-2021 20:29
Edvin Johannesen,
15-01-2021 20:42
Re : Large-spored Propolis on Populus tremula
Thanks for your reply. Yes, and your key took me to P. (versicolor var.) betulae. However, only Quercus and Pinus are mentioned as substrate. P. betulae is not known from Norway, so I wonder if that is a name to be used or whether versicolor var. betulae is more appropriate.


