Yelow lichen on tree bark, possibly Xanthoria, maybe even Xanthoria parietina.
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.
Yes a Xanthoria species, either immature X. parientina or X. polycarpa
Lat/Lng: 55.9, -3.3
OS grid ref: NT1970