49 



Ovary one celled. Exotic shrubs. 112 

 Ovary three to five celled. 



Flowers perfect. Perianth with six or eight divisions, only half of 

 them petal-like. Leaves not articulated with the stem. 



TRILLIACE^E. p. 337. 



Flowers imperfect. Perianth with six divisions, all petal-like. 

 Leaves articulated with the stem. SMILACE.E. p. 336. 



112. Parts of the flower in twos or fours. Placenta at the base of the 



ovary. ROXBURGHIACE.E. 

 Parts of the flower in threes. Placentae parietal. PHILESIACE.E. 



113. Outer perianth petal-like. 115 



Outer perianth green, or sometimes glume-like. 



Carpels more or less distinct. 114 

 Carpels united into a single ovary. 



Perianth consisting of three whorls, each of three parts, usually dry 

 and glume-like. Plants resembling the grasses. 



JUNCACE^:. p. 349. 

 Perianth consisting of unlike whorls. 



Anthers one celled. Placentae parietal. MAYACACE.&. 

 Anthers two celled. Placentae in the axis. 



Stigma single. Filaments usually hairy. Stem round, with nodes. 



COMMELYNACE.E. p. 350. 

 Stigmas two or more. 



Flowers perfect. Stamens six. Stigmas three. Seeds numerous. 



Leaves stiff, channeled, often scurfy. BROMELIACE^. p. 329. 

 Flowers imperfect, very small, in heads. Stamens two to six. 



Stigmas two to six. Seeds solitary. Leaves linear, fleshy. 



ERIOCAULONACE.E. p. 352. 



114. Placentae parietal, forming a network on the inner surface of the 

 ovary. Fruit many seeded. Stamens nine or many. Ovaries 

 six or many. Herbs. BUTOMACE.*:. p. 320. 

 Placentae in the axis, or at the base of the ovary. Ovules solitary 

 or in pairs. 



