Yellow foliose lichen
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.
If you look through some of the lichen photos and observations that have been posted on iSpot you'll find this one with no difficulty!
Lat/Lng: 52.1, -1.1
OS grid ref: SP6750