Aspicilia contorta

Aspicilia contorta

Observation - Aspicilia contorta - UK and Ireland. Description: Another slightly fuzzy photo - sorry! A lecanora species on a concrete paving slab. L. dispersa? L. semipallida? Help, please. Edit: title changed to match Gardener's ID - thanks.

Another slightly fuzzy photo - sorry! A lecanora species on a concrete paving slab. L. dispersa? L. semipallida? Help, please.
Edit: title changed to match Gardener's ID - thanks.