Basionym Name:Parmelia arquata Brusse, Mycotaxon 31(2): 535 (1988)
Homotypic synonyms:Karoowia arquata (Brusse) Hale, Mycotaxon 35(1): 184 (1989)Xanthoparmelia arquata (Brusse) G. Amo, A. Crespo, Elix & Lumbsch, Aust. Syst. Bot. 23(3): 180 (2010)