Lecidea areolata Schaer.

Lichenised. Poorly known taxon.
Substrate: siliceous rocks
Altitudinal distribution: alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: a silicicolous species which probably belongs to the Lecanora marginata-group.
Switzerland: ?Valais; France: Haute-Savoie;