Protoparmeliopsis muralis (Schreb.) M. Choisy

Basionym: Data lacking.

Chemistry: Usnic acid, fatty acids, zeorin, unknown triterpenoids, triterpenoids T1, T2, T3 (Timdal 1987: 77, samples from Sweden). Murolic acid, Neodihydromurolic aicd (Huneck & Yoshimura 1996: 148, 149).