Lichenologist 15, 3: 265 (1983). Basionym: Sporopodium fuscoluteum var. austroamericana Räsänen, Ann. Bot. Soc. Zool.-Bot. Fenn. Vanamo 20, 3: 27 (1944).
Basionym: Sporopodium fuscoluteum var. austroamericana Räsänen, Ann. Bot. Soc. Zool.-Bot. Fenn. Vanamo 20, 3: 27 (1944).