Grey, placodioid thallus growing on limestone wall ledge. Lecanorine apothecia with orange discs. Possibly Caloplaca teicholyta.
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: 52.1296, -0.2063
OS grid ref: TL228494