51 



Stamens distinct from the pistil. 118 

 Stamens attached to the pistil or gynandrous. 



Ovary one celled. Placentae parietal. Flowers very irregular, 

 mostly showy. Pollen grains adhering in masses called poUinia. 



ORCHIDACE.*:. p. 323. 



Ovary three celled. Placentae in the axis. Pollen grains distinct. 

 Flowers inconspicuous, arranged in many-flowered, nodding 

 racemes. APOSTASIACEJE. 



118. Veins of the leaves parallel with the midrib. 120 



Veins of the leaves running obliquely from the midrib to the 

 margin. 



Flowers perfect, with a single anther-bearing stamen. 119 

 Stamens three or more. 



Flowers irregular, perfect, showy. Stamens six. Ovary three celled. 

 Placentae central, or basal. Large, tropical, land plants. 



MUSACE.E. p. 329. 



Aquatic plants. Flowers usually imperfect. Ovary one to six 

 celled. Placentae parietal. Style very short. Stigmas three or 

 six. Stamens in one or several whorls. 



HYDROCHARIDACE^:. p. 321. 



119. Anther one celled. Filament petal-like. Rhizomes usually 

 jilxninding in starch, and not aromatic. MARANTACE.E. p. 328. 

 Anther two celled. Filament thread-like. Rhizomes or tubers 

 aromatic or resinous. ZINGIBERACE.E. p. 328. 



120. Stamens six. 121 

 Stamens three. 



Anthers opening outwards. IRIDACE^E. p. 332. 

 Anthers opening inwards. Seeds very minute. 



\\JKJf,. U. OUZi. 



very minute. BURMANNIACEJE. 



121. Fruit one celled. TACCACE^E. 

 Fruit three celled. 



