Ramalina thrausta (Ach.) Nyl.

Syn. Meth. Lich. (Parisiis) 1, 2: 296 (1860).

Basionym: Alectoria thrausta Ach., Lich. Univ.: 596 (1810).

Synonym:

Type:

 

Thallus:

Chemistry: Chemical constituents poorly known. Usnic acid, evernic acid (Krog 1968), unknown medullary substance sometimes lacking (Krog & James 1977), undetermined medullary compound (Purvis & James 1992), unknown lichen substance or without lichen substances (Krog et al. 1994), various unknowns (Goward 1999), stenosporic acid (Sérusiaux et al. 1999), only usnic acid (Brodo et al. 2001).
Presently two chemotypes (Elix & Tønsberg):
I: Usnic acid, perlatolic acid and stenosporic acid (common).
II: Usnic acid (rare).

Ecology:

Molecular data:

Distribution:

Note: Possibly identical with R. chondrina.