= Cactus conoideus (DC.) Kuntze; Revis. Gen. Pl. 1: 260 (1891)
= Cactus coronatus Kuntze; Revis. Gen. Pl. 1: 261 (1891), nom. illeg.
= Cactus crebrispinus Kuntze; Revis. Gen. Pl. 1: 260 (1891)
= Cactus echinocactoides Kuntze; Revis. Gen. Pl. 1: 260 (1891)
= Cactus grandiflorus (Link & Otto ex Pfeiff.) Kuntze; Revis. Gen. Pl. 1: 260 (1891), nom. illeg.
= Coryphantha ceratites (Quehl) A.Berger; Kakteen [Berger] 266 (1929)
= Coryphantha conoidea (DC.) Orcutt; Circular to Cactus Fanciers: 1 (1922)
= Coryphantha grandiflora A.Berger; Kakteen [Berger] 266, 339 (1929)
= Coryphantha stuetzlei Fric; Möller´s Deutsche Gärtn.-Zeitung 41: 140, 142, Boed. in Z. Sukkulentenk. 3: 312 (1928 publ. 1926)
= Echinocactus conoideus (DC.) Poselg.; Allg. Gartenzeitung [Otto & Dietrich] 21: 107 (1853)
= Mammillaria ceratites Quehl; Monatsschr. Kakteenk. 19: 155 (1909)
= Mammillaria conoidea DC.; Mém. Mus. Hist. Nat. 17: 112 (1828)
= Mammillaria coronata Scheidw.; Allg. Gartenzeitung [Otto & Dietrich] 8: 338 (1840), nom. illeg.
= Mammillaria crebrispina DC.; Mém. Mus. Hist. Nat. 17: 111 (1828)
= Mammillaria diaphanacantha Lem.; Cact. Aliq. Nov. 39 (1838)
= Mammillaria echinocactoides Pfeiff.; Allg. Gartenzeitung [Otto & Dietrich] 8: 281 (1840)
= Mammillaria grandiflora Link & Otto; Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 6: 430 (1830), nomen, et ex Pfeiff. Enum. Diagn. Cact. 33
= Mammillaria inconspicua Scheidw.; Bull. Acad. Roy. Sci. Bruxelles 5: 495 (1838)
= Mammillaria lloydii Cory; Bull. Texas Agric. Exp. Sta. 550 (Cat. Fl. Texas): 74 (1937)
= Mammillaria polychlora Scheidw. ex C.F.Först.; Handb. Cacteenk. [Förster] 205 (1846)
= Mammillaria strobiliformis Engelm.; Mem. Tour N. Mexico [Wislizenus] 113 (1848), nom. illeg.
= Neolloydia ceratites (Quehl) Britton & Rose; Cactaceae [Britton & Rose] 4: 16 (1923)
= Neolloydia conoidea (DC.) Britton & Rose; Bull. Torrey Bot. Club 49: 252 (1922)
= Neolloydia conoidea var. ceratites (Quehl) Kladiwa & Fittkau; Kakteen [H.Krainz] 42: VIII b (1971)
= Neolloydia conoidea var. depressa Fric; Ceskoslov. Zahradn. Listy 1924: 122 (1924), nomen
= Neolloydia conoidea var. grandiflora (Otto) Kladiwa & Fittkau; Kakteen [H.Krainz] 46-47: CVIIIb. (1971)
= Neolloydia conoidea var. texensis (Britton & Rose) Kladiwa & Fittkau; Kakteen [H.Krainz] 46-47 CVIIIb. (1971)
= Neolloydia grandiflora (Link & Otto ex Pfeiff.) F.M.Knuth; Kaktus-ABC [Backeberg & Knuth] 368 (1936)
= Neolloydia grandiflora var. robusta Ríha; Kakteen And. Sukk. 32(6): 128 (1981)
= Neolloydia stuetzlei Orcutt; Cactography 8 (1926), Britton & Rose in Contr. U.S. Natl. Herb. 23: 1677 (1926)
= Neolloydia texensis Britton & Rose; Cactaceae [Britton & Rose] 4: 18 (1923)
= Pediocactus conoideus (DC.) Halda; Acta Mus. Richnov., Sect. Nat. 5(1): 23 (1998)