Basionym Name:Parmelia ostracoderma Ach., Methodus, Sectio post. (Stockholmiæ): 157 (1803)
Homotypic synonyms:Lecanora ostracoderma (Ach.) Ach., Lich. Univ.: 347 (1810)Lichen peltatus * ostracoderma (Ach.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 392 (1813)