252 +.Britron & Rose: NEW GENERA OF CACTACEAE 
central spines one to several, much stouter and longer than 
he radials; flowers large, pink or purple, subcentral from the 
axils of nascent tubercles, their segments widely spreading; 
fruit compressed-globose, dull colored, thin-walled, becoming 
papery, , with few scales or none; seeds globose, black, dull, 
tuberculate-roughened, with a large light basal scar 
Type species: Mammillaria conoidea De Candolle. 
The genus is dedicated to Professor Francis E. Lloyd. 
1.’Neolloydia conoidea (De Candolle) comb. nov. 
Mammillaria conoidea De Candolle, Mém. Mus. Hist. Nat. 
Paris: 17: 112. 1828. 
Echinocactus conoideus Poselger, Allg. Gartenz. 21: 107. 1853. 
2.‘ Neolloydia Beguinii (Weber) comb. nov. 
Echinocactus Beguinit Weber in Schumann, Gesamtb, 
Kakteen 442. 18098. 
