Echinocactus centeterius var. major Lem. & Monv., Cact. Gen. Sp. Nov.: 91. 1839 Echinocactus centeterius var. major Lem. & Monv., Cact. Gen. Sp. Nov.: 91. 1839Taxon for this nameEchinocactus centeterius var. major Lem. & Monv., Cact. Gen. Sp. Nov.: 91. 1839