Irish lichens

Lecanora sulphurea
Order: Lecanorales       Family: Lecanoraceae

Species: Lecanora sulphurea

Growth type crustose.
Photos: On acidic coastal rocks. Dunmanus Bay, Cork, SW Ireland.
Identified by Mike Simms

Thick warted and cracked, yellowish-grey to bright yellow-green thallus surrounded by greenish-black prothallus. The immersed pale, irregular apothecia become blackish with pale grey pruina.

Exposed nutrient-rich siliceous walls and rocks, also parasitic on Tephromela and Lecanora species. Found on coast and inland.
K- or K+ dirty-yellow, KC+ yellow

Lecanora sulphurea

Lecanora sulphurea

Lecanora sulphurea
Lecanora sulphurea on acidic coastal rocks. March 2009

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