Basionym Name:Parmelia homotoma Nyl., Flora, Regensburg 68: 613 (1885)
Homotypic synonyms:Parmelia macrocarpoides subsp. homotoma (Nyl.) Vain., Acta Soc. Fauna Flora fenn. 7(no. 1): 43 (1890)Parmotrema homotomum (Nyl.) Hale, Phytologia 28(4): 336 (1974)Parmotrema homotomum f. homotomum (Nyl.) Hale, Phytologia 28(4): 336 (1974)Rimelia homotoma (Nyl.) Hale & A. Fletcher, Bryologist 93(1): 28 (1990)