Roccellographa circumscripta forme sciaphile.
This form is characteristic of rocky overhangs always in the shade and sheltered from rain and splashes of sea water. Thallus white with unclear areoles, grayish a little yellowish in places, with circular or oval apothecia can form chains and give the impression of a network. Very frequently associated with Ingaderia sorediata and in particular with Ingaderia sorediata forme bleue.