Basionym Name:Nephromium canadense Räsänen, Ann. Mo. bot. Gdn 20: 17 (1933)
Homotypic synonyms:Nephroma tropicum var. canadense (Räsänen) Zahlbr., Cat. Lich. Univers. 10: 286 (1939)Nephromium tropicum var. canadense (Räsänen) Räsänen, [as 'canadensis'] Ann. bot. Soc. Zool.-Bot. fenn. Vanamo 20(no. 3): 16 (1944)