Coryphantha conoidea (DC.) Orcutt, Circular to Cactus Fanciers, p.i. 1922 Coryphantha conoidea (DC.) Orcutt, Circular to Cactus Fanciers, p.i. 1922is new combination for Mammillaria conoidea DC. in Mém. Mus. Hist. Nat. 17: 112. 1828Taxon for this nameCoryphantha conoidea (DC.) Orcutt