Yellow crustose lichen on gravestone. Photo taken in icy conditions
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.
It could be Candelariella aurella but you need to test with K to distinguish Caloplaca species from similar Candelariella's.
Lat/Lng: 51.0, -2.5
OS grid ref: ST7128