Found this on the trunk of a Beech tree growing in moss. Cap was 6mm in diameter on the largest specimen.
Spores 8.0-9.5µ x 5.2-6.3µ with a Q value of 1.4-1.6:
Cheilocystidia were covered in wart like outgrowths and some had very long finger like outgrowths:
Hyphae in the outer layers of the stem had tiny outgrowths:
I keyed it out using several sources to
Mycena mirata but then checked the basidia and found them to be four spored whereas all my sources suggest
M.mirata only has two spored basidia, this was constant in several specimens from the same location:
The only other possibilities I could get to in Funga Nordica were
M.arcangeliana and I think my specimens were too small and with too long diverticulae and the stem was the wrong colour; and
M.filopes or
M.metata which are mostly two spored with some four spored basidia but would seem to be terrestrial on plant fragments rather than on mosssy tree trunks.
Does anyone have any idea on this one - a job for Mycena Man I think
Thanks, as always, for any suggestions.