Syn. N. Amer. Lich. (Boston) 1: 115 (1882). Basionym: Parmelia byrsea Ach., Methodus, Sectio post. (Stockholmiæ): 222 (1803).
Basionym: Parmelia byrsea Ach., Methodus, Sectio post. (Stockholmiæ): 222 (1803).