Nordic J. Bot. 2, 3: 291 (1982). Basionym: Parmelia darrowii J. W. Thomson [as 'darrowi'], in Darrow, Am. Midl. Nat. 43: 493 (1950).
Basionym: Parmelia darrowii J. W. Thomson [as 'darrowi'], in Darrow, Am. Midl. Nat. 43: 493 (1950).