Species: Caloplaca maritimaGrowth type crustose
Photos: On coastal rock. Snave, Cork, SW Ireland.
Very similar to Caloplaca marina but has a yellowish areolate thallus with pale yellowish-white prothallus. Numerous waxy yellowish-orange or deep-yellow apothecia.
K+ crimson / purple.
Very under-recorded but can form large patches on coastal rocks, concrete and walls. Found higher on the shoreline than C. marina and can extend slightly inland.
Caloplaca maritima on coastal rock. Snave, Co.Cork. February 2009