The lichen is Xanthoria parietina, but the focus here is not on the lichen, but its ill health, and what may be parasitising it.
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.
Lat/Lng: 53.612307, -2.531592
OS grid ref: SD649129