This lichen was growing on a rock on moorland.
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.
Alan S, I have added a closer view of the lichen. Does that help you confirm the identification?
Yes, I am now sure it is Arctoparmelia incurva.
Lat/Lng: 54.3946, -2.0154
OS grid ref: SD990999
OS SD 991 999