A crust forming cracking white or pale grey lichen with black apothecia.
On base poor rocks.
All year round
Widespread in Britain but mainly found in the north and west.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
Enter a town or village to see local records
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015