Cactus reductus Link, Enum. Hort. Berol. Alt. 2: 21. 1822
Cactus reductus, Enum. Hort. Berol. Alt. 2: 21. 1822
is basionym for Gymnocalycium reductum, Taschenb. Cactuslieb. 2: 124. 1844
is basionym for Cereus reductus, Prodr. 3: 463. 1828
is basionym for Gymnocalycium reductum, Abbild. Beschr. Cact. 2: pl. 12. 1846