Synonymy:
Parmelia loxodes Nyl., Flora, Regensburg 55: 426 (1872)
Parmelia conspersa var. loxodes (Nyl.) Boistel, Nouv. Fl. Lich. (Paris) 2: 64 (1903)
Neofuscelia loxodes (Nyl.) Essl., Mycotaxon 7(1): 51 (1978)

Parmelia isidiotyla Nyl., Flora, Regensburg 58(1): 8 (1875)
Parmelia olivacea f. isidiotyla (Nyl.) Blomb. & Forssell, Enum. Pl. Scand.: 65 (1880)
Parmelia prolixa f. isidiotyla (Nyl.) Dalla Torre & Sarnth., Fl. Tirol, Vorarlberg, Liechtenstein, IV Band. Die Flechten von Tirol: 137 (1902)
Parmelia prolixa var. isidiotyla (Nyl.) Dalla Torre & Sarnth., Fl. Tirol, Vorarlberg, Liechtenstein, IV Band. Die Flechten von Tirol: 137 (1902)
Parmelia olivacea var. isidiotyla (Nyl.) Boistel, Nouv. Fl. Lich. (Paris) 2: 67 (1903)
Parmelia delisei var. isidiotyla (Nyl.) Harm., Lich. Fr. 4: 541 (1910) [1909]
Parmelia glomellifera f. isidiotyla (Nyl.) Mig., Krypt.-Fl. Deutschl. Österr. Schweiz. 12/2: 209 (1925)

Imbricaria prolixa var. isidiotyla Arnold, Verh. Kaiserl.-Königl. zool.-bot. Ges. Wien 29: 380 (1879)
Imbricaria isidiotyla (Arnold) Arnold, Flora, Regensburg 65: 406 (1882)
Parmelia prolixa var. isidiostyla (Arnold) Dalla Torre & Sarnth., Fl. Tirol, Vorarlberg, Liechtenstein, IV Band. Die Flechten von Tirol: 137 (1902)

Parmelia prolixa var. isidiascens Nyl. ex Cromb., Monogr. Lich. Brit.(1): 254 (1894)
Parmelia delisei var. isidiascens (Nyl. ex Cromb.) Zahlbr., Cat. Lich. Univers. 6: 82 (1929)
Parmelia prolixa f. isidiascens (Nyl. ex Cromb.) Zahlbr., Cat. Lich. Univers. 6: 82 (1930) [1931]

Position in classification:
Xanthoparmelia, Parmeliaceae, Lecanorales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
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