Dactylina ramulosa (Hook. f.) Tuck.

Proc. Amer. Acad. Arts & Sci. 5: 397 (1862) [1860].

Basionym: Dufourea ramulosa Hook., (1824).

Chemistry: Usnic acid, often physodic acid, physodalic acid and/or an unknown UV+ substance (Thomson & Bird 1978, Timdal 2004: 33).