Echinomastus erectocentrus var. acunensis (W.T.Marshall) Bravo in Cact. Suc. Mex. 25: 65. 1980 Echinomastus erectocentrus var. acunensis (W.T.Marshall) Bravo in Cact. Suc. Mex. 25: 65. 1980is new combination for Echinomastus acunensis W.T.Marshall in Saguaroland Bull. 7: 34. 1953Taxon for this nameEchinomastus erectocentrus var. acunensis (W.T.Marshall) Bravo