I think this is it… help, anyone? ☺️
Small black stipitate Ascomycete growing from gravely soil in Betula nana/Salix arctica alpine habitat
Smell/taste indistinct
Small flecks on exciple and base of stipe UV fluorescent
Specimen stored at the Icelandic Institute of Natural History Fungarium Akureyri
Stipitate, saprotrophic
Slightly UVB reactive on pores
Specimen stored at the Icelandic Institute of Natural History Fungarium Akureyri
Growing from soil in Betula nana/Salix arctica alpine habitat
Growing from moss in Betula nana/Salix arctica alpine habitat
Specimen stored at the Icelandic Institute of Natural History Fungarium Akureyri
Growing from soil in Betula/Picea mixed forest
Specimen stored at the Icelandic Institute of Natural History Fungarium Akureyri
Lignicolous Ascomycete
Paraphyses with globose tips
Specimen stored at the Icelandic Institute of Natural History Fungarium Akureyri
Baby Pholiota? Fruiting from a decaying stump
Growing from moss
Matches with Collybia cirrhata, but growing on moss and leaf litter… the remnant mushroom body must have been totally buried
Spores smooth, inamyloid
Specimen stored at the Icelandic Institute of Natural History Fungarium Akureyri
Growing from soil in Betula/Picea mixed forest
Dark brown KOH rxn on pileus
Specimen stored at the Icelandic Institute of Natural History Fungarium Akureyri