White, crustose lichen with a black prothallus. Black,lecanorine apothecia. Found on sandstone gravestones.
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.
From the very lumpy, untidy appearance I think this is more likely to be Lecanora gangaleoides, which resembles T. atra very closely and often grows with it.
Lat/Lng: 54.292418964532, -1.9830858707428
OS grid ref: SE011885