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. Brii.x. 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 

 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, Mem. Cact. pi. 2; Pfeiffer, Abbild. Beschr. Cact. 2: pi. 26; 

 Bliihende Kakteen 2: pi. 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. 



