MAMILLARIA. $j 



M. Schiedeana. 



Stem globose proliferous, 5 inches high, thickly clothed witlr 

 narrow, pointed tubercles, set in white wool, the apices crowned 

 with tiny stars of white silky spines, like the pappus of a Composite, 

 giving the plant a pretty silky appearance which cannot well be 

 described. Flowers small and unattractive ; succeeded by red 

 fruits, which add to its beauty. Mexico. Introduced" 1 838. 

 It is easily increased, either from seeds or by means of offsets 

 developed at the base. 



Fig. 48. Mamillaria sub-polyhedra. 

 M. zsenilis. 



Stem about 3 inches high, globose, unbranched, except when 

 very old, when it becomes proliferous at the base ; tubercles crowded, 

 small, arranged spirally, and crowned with clusters of long, radiating 



