Notocactus macrocanthus (Arechav.) G.Schäf. in Kakteen Sukk. 14: 59. 1980 ["1979"] Notocactus macrocanthus (Arechav.) G.Schäf. in Kakteen Sukk. 14: 59. 1980 ["1979"]is new combination for Echinocactus sellowii var. macrocanthus Arechav.Taxon for this nameNotocactus macrocanthus (Arechav.) G.Schäf.