I saw just one clump of this lichen growing on a patch of soil in the dunes at Hengistbury Head, sheltered by dune grasses and a few other plants.
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.
In the strong sunlight at 14.30 hrs, there did seem to be a hint if yellow underneath, but not much.
Lat/Lng: 50.712589, -1.749727
OS grid ref: SZ177903