Ramalina farinacea var. reagens B. de Lesd.
Ramalina farinacea chémo reagens
Ramalina farinacea chem. b
Differs from Ramalina farinacea var. farinacea by its slender, thin branches arranged in a small bush (like Usnea!) and its chemistry: Medulla: C-, K+ yellow then red, yellowish KC+ spotted with red, P+ orange, UV-. This variety seems quite common on the bark of old trees.