Basionym Name:Parmelia digitulata var. wyomingica Gyeln., Annls mycol. 36(4): 277 (1938)
Homotypic synonyms:Parmelia wyomingica (Gyeln.) Hale, in Egan, A floristic Study of alpine Lichens from Colorado and New Mexico (Thesis; Univ. Colo., U.S.A.): 186 (1971)Xanthoparmelia wyomingica (Gyeln.) Hale, Phytologia 28(5): 490 (1974)