On fallen Ash branch.
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.
Totally stumped by this one, though I'm probably missing something obvious!
It was on a fallen branch from a solitary Ash tree at 350m in a very exposed upland area, slightly protected by a small Hawthorn hedge.
Unlikely location but the trunk was covered with Degelia atlantica, Pannaria rubiginosa and Collema fasciculare!
Thanks Nigel - I'm too used to seeing Physconia distorta as large, radiating thallii!
Lat/Lng: 51.7, -9.6
OS grid ref: SJ7736