Cactus sulcatus (Engelm.) Small, Fl. S.E. U.S.: 812. 1903 Cactus sulcatus (Engelm.) Small, Fl. S.E. U.S.: 812. 1903is new combination for Mammillaria sulcata Engelm. in Boston J. Nat. Hist. 5(2): 246. 1845Taxon for this nameCactus sulcatus (Engelm.) Small, Fl. S.E. U.S.: 812. 1903