. The Cactaceae : descriptions and illustrations of plants of the cactus family. NEOLLOYDIA. 17 6. Neolloydia conoidea (De Candolle) Britton and Rose, Bull. Torr. Club 49: 252. 1922. Mammillaria conoidea De Candolle, Mem. Mus. Hist. Nat. Paris 17: 112. 1828. Mammillaria grandiflora Otto in Pfeiffer, Enum. Cact. 33. 1837. Mammillaria diaphanacantha Lemaire, Cact. Aliq. Nov. 39. 1838. Mammillaria inconspicua Scheidweiler, Bull. Acad. Sci. 5: 495. 1838. Mammillaria echinocactoides Pfeififer, Allg. Gartenz. 8: 281. 1840. Afa»j?Ki//ana ic/ieeri Miihlenpfordt, Allg. Gartenz. 13: 346. 1845. M
. The Cactaceae : descriptions and illustrations of plants of the cactus family. NEOLLOYDIA. 17 6. Neolloydia conoidea (De Candolle) Britton and Rose, Bull. Torr. Club 49: 252. 1922. Mammillaria conoidea De Candolle, Mem. Mus. Hist. Nat. Paris 17: 112. 1828. Mammillaria grandiflora Otto in Pfeiffer, Enum. Cact. 33. 1837. Mammillaria diaphanacantha Lemaire, Cact. Aliq. Nov. 39. 1838. Mammillaria inconspicua Scheidweiler, Bull. Acad. Sci. 5: 495. 1838. Mammillaria echinocactoides Pfeififer, Allg. Gartenz. 8: 281. 1840. Afa»j?Ki//ana ic/ieeri Miihlenpfordt, Allg. Gartenz. 13: 346. 1845. Mammillaria strobiliformis Engelmann in Wislizenus, Mem. Tour North. Mex. 113. 1848. Echinocactus conoideus Poselger, Allg. Gartenz. 21: 107. 1853. Cactus conoideus * Kuntze, Rev. Gen. PI. i: 260. 1891. Cactus echinocactoides * Kuntze, Rev. Gen. PI. i: 260. 1891. Cactus grandiflorus Kuntze, Rev. Gen. PI. i: 260. 1891. Not Linnaeus, 1753. Sometimes simple, but usually cespitose, sometimes forming large clusters, often branching or budding above, short-cylindric; tubercles in 5 or 8 spiral rows, obtuse, their axils very woolly; spines very numerous, often completely covering the plant; radial spines white, 25 or more, widely spread-. FlG. 16.—Neolloydia ceratites. Fig. 17.—Neolloydia conoidea. ing, 8 to 10 mm. long; central spines several, stouter and longer than the radials, i to 3 cm. long, blackish; flowers large; outer perianth-segments dull purple without, lighter toward the margins; inner perianth-segments rich purple; anthers orange; filaments pale yellow, purplish at base; style and stigma-lobes pale yellow, the latter 5 or 6; fruit compressed-globose, dull yellow, mottled with red, becoming dry and papery, then brown; seeds i mm. in diameter. Type locality: Mexico. Distribution: Northern Mexico. Mammillaria canescens, listed by De Candolle (Prodr. 3: 460. 1828) as hardly known and given by Pfeififer (Enum. Cact. 33. 1837) as a synonym of M. grandiflora, doubtless bel
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