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.
Graphoid lichens are notoriously difficult to be sure of without seeing mature spores (which, apart from characters of their own, prove that the thallus itself is mature).
So yes, Graphis scripta, almost certainly, but I prefer not to add formal agreement.
Lat/Lng: 51.1722, -3.2689
OS grid ref: ST113422