Species: Usnea flammea
Photos: On acidic upland rock. Ballingeary, Cork, SW Ireland.
Base unblackened, pale annular rings on main branches. Main stems +/- smooth near base. Lateral branches grow from one side of main stem, often ending in fine tassel. Sub-pendulous with lax medulla.
Usually occurs on exposed rocks near the coast. Can also be found on mossy trees and heather stems.
Medulla: K+ yellow turning red, P+ orange
Usnea flammea on acidic upland rock. March 2009