Neolloydia conoidea (DC.) Britton & Rose in Bull. Torrey Bot. Club 49: 252. 1922
Neolloydia conoidea in Bull. Torrey Bot. Club 49: 252. 1922
is new combination for Mammillaria conoidea in Mém. Mus. Hist. Nat. 17: 112. 1828
Neolloydia conoidea in Bull. Torrey Bot. Club 49: 252. 1922