Caloplaca maritima

Growth type crustose
Chemical results: K+ crimson

Found higher on shoreline than C. marina on rocks, concrete and walls. Sometimes extends slightly inland.

Pale yellowish-white prothallus surrounding a yellowish areolate thallus with waxy yellowish-orange or deep-yellow apothecia.

Similar: Caloplaca marina

Caloplaca maritima
Kimmeridge Bay, Dorset. January 2013

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