Coastal granite lichen

Coastal granite lichen

Observation - Coastal granite lichen - UK and Ireland. Description: Crustose lichen with light grey areolate thallus growing on granite wall exposed to the sea. Red-brown apothecia with lighter red brown surround. Some discs appear darker olive brown. Possibly Caloplaca ceracea.

Crustose lichen with light grey areolate thallus growing on granite wall exposed to the sea. Red-brown apothecia with lighter red brown surround. Some discs appear darker olive brown. Possibly Caloplaca ceracea.