- Explore community
Added: 24th July 2012
White crustose lichen growing on oolitic limestone and mortar of church wall. Thallus cracked. No noticeable edge features to thallus. Black lecideine apothecia with white pruinose surface. Grey surround visible on some younger apothecia especially in thallus in lower part of image. Possibly Diplotomma alboatrum.