NEOLLOYDIA. 17 
_> 6. Neolloydia conoidea (De Candolle) Britton and Rose, Bull. Torr. Club 49: 252. 1922. 
2 Mammiillaria conoidea De Candolle, Mém. 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. Brux. 5: 495. 1838. 
Mammillaria echinocactoides Pfeiffer, Allg. Gartenz. 8: 281. 1840. 
Mammillaria scheert Miihlenpfordt, Allg. Gartenz. 13: 346. 1845. 
» Mammillarta strobiliformis Engelmann in Wislizenus, Mem. Tour North. Mex. 113. 1848. 
Echinocactus conoideus Poselger, Allg. Gartenz. 21: 107. 1853. 
Cactus conoideus * Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus echinocactoides * Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus grandiflorus Kuntze, Rev. Gen. Pl. 1: 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- 
Fic, 16.—Neolloydia ceratites. Fic. 17.—Neolloydia conoidea. 
ing, 8 to 10 mm. long; central spines several, stouter and longer than the radials, 1 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 1 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 Pfeiffer (Enum. Cact. 33. 1837) as a synonym of 1. grandiflora, doubtless 
belongs here. A plant of this name was in the Berlin Botanical Garden in 1829 (Verh. 
Ver. Beford. Gartenb. 6: 430. 1830). 
The name Coryphantha conoidea occurs in C. R. Orcutt’s Circular to Cactus Fanciers 
1922. 
° Illustrations: De Candolle, Mém. Cact. pl. 2; Pfeiffer, Abbild. Beschr. Cact. 2: pl. 26; 
Bliihende Kakteen 2: pl. 96; Schelle, Handb. Kakteenk. 238. f. 155; Ann. Rep. Smiths. 
* Kuntze’s spelling of these two names is as follows: C. conodeus and C. echinocactodes. 
