Rhizocarpon geographicum
Description
A distinctive, but variable, yellow-green to bright yellow crust forming lichen, that cracks into angular sections and has flat, black apothecia.
Identification difficulty

Habitat
On exposed, base poor rocks.
When to see it
All year round
UK Status
Widespread and fairly frequent, especially in the north and west.
VC55 Status
Fairly frequent in Leicestershire and Rutland.
Leicestershire & Rutland Map
Enter a town or village to see local records
MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015