Taxon 53, 4: 970 (2004).

Basionym: Parmelia olivacea ? prolixa Ach., Methodus, Sectio post. (Stockholmiæ): 214 (1803).

Chemistry: Gyrophoric acid, glomelliferic acid, glomelliic acid, a very small amount of isoloxodellic acid (Huneck et al. 1989: 255).