Lovely!

I assume Urceolella (cf. appressipila). KOH should do atleast some damage if not make the hairs burst completely. Olla wouldnt take any hit + usually some dextrinoid reaction.

There's a lot to be done with Urceolella. This should find its way to herbarium.

Timo

Thank you both, Timo and Zotto. It does look very similar to Urceolella (cf. appressipila). Does it grow on decorticated wood? It also looks nearly identical to this Urceolella, II.2016 from Spain. I believe my specimens were also on Populus wood. Was it sequenced? I will send mine to DNA sequencing.

Yeah, my concept at the moment is that U. hirta is a "leaf-species". And then there is atleast one species on deciduous wood (also on Populus here in Scandinavia) which I think is (or is close to) appressipila. Also I think there are more than one species (cf appressipila) on wood. But that's a very very working hypothesis - a hunch if you may. --- The hairs of U. hirta and U. appressipila are somewhat similar, but in hirta they are undulating and curly where as in appressipila the hair is more like on one - or one and a half - huge curve - not a corkscrew.

Appressipila is _relatively_ easy to find if there's ample dead soft wood, but hirta not so easy :-) ..takes that one perfect leaf-spot and the exact right moment.

Timo

I know of no sequence of U. hirta and allies. Maybe Javier Balda kept his specimen.