The Flower. 97 



143. The Stamens (sta'-mens). Inside the corolla 

 is a group of slender organs (S S, Fig. 45), called 

 stamens. Each stamen consists of three parts, viz., 

 the long and slender portion, connected with the calyx 

 below, called the filament (fil'-a-ment) ; the swollen part 

 at the top, called the anther (another) ; and the yellow 

 dust found upon or within the anther, called the pol- 

 len (pol'-len). Each grain of pollen is a single cell, 

 which if fertile (152) contains living protoplasm. The 

 pollen is set free at maturity. 



144. The Pistil (pis'-til). The column-like part in 

 the center of the flower is called the pistil. This also 

 consists of three principal parts, viz., the enlarged flat- 

 tened summit, called the stigma (stig'-ma) ; the egg- 

 shaped base, called the ovary (o'-va-ry) ; and the slen- 

 der part connecting the two, the style. The ovary con- 

 tains a smaller, egg-shaped part, called the ovule 

 (o'-vule), which when developed becomes the seed. 

 Many flowers have more than one pistil, and many ova- 

 ries contain more than one ovule. 



Recapitulating, the parts of the flower are, in the 

 order we have considered them: 



a The calyx; when divided, the parts are called 



sepals. 

 b The corolla; when divided, the parts are called 



c The stamens; the parts are the filament, anther 



and pollen. 

 d The pistil or pistils; the parts are the stigma, 



ovary and style. 

 The ovary contains the ovule or ovules. 



