Order: Lecanorales       Family: Lecanoraceae Species: Lecanora actophila Growth type crustose. Photos: On coastal rocks near Toormore, Cork, SW Ireland. Creamy-white to yellowish grey-green smooth, cracked or areolate thallus, often with whitish prothallus. Small greenish-black, sessile apothecia become bluish when wet. Entire, paler margins become contorted but not excluded or crenulate. Coastal, common on siliceous rocks in 'grey zone' above HWM. K-, UV-

     



Lecanora actophila. On coastal rock, Toormore, Co.Cork. February 2009