on a oak tree
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
thanks for the i.d will try again without the shake
Actually I was a touch uncharitable about the photography. Apologies. Camera movement spoils the close-up, which was the main one I looked at, but the left hand photograph is not at all bad and shows the lichen clearly.
I should have added that the lichen was evidently in damp condition; it is grey when dry.
Green variant of Melanelixia glabratula (= M. fuliginosa ssp. glabratula), with glossy surface, also present in the photograph.
Lat/Lng: 51.23236, -0.3511
OS grid ref: TQ152494