Chewing gum lichen on garden stone
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.
Can't tell which lichen is it in the photo, but the outer edge is lacking the lobes distinctive of Lecaora muralis.
If you look closely at the second of the photos in the link below you'll see how they differ from yours:
Lat/Lng: 55.9, -3.8
OS grid ref: NS9179