The Flower. 95 



144. 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 (nT-a-ment); the swollen part at the top, 

 called the anther (an'-ther); and the yellow dust, found 

 upon or within the anther, called ihe pollen (pol'-len). 

 Each grain of pollen is a single cell, which if fertile 

 (153) contains living protoplasm. The pollen is set free 

 at maturity. 



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

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

 sists of three principal parts, viz., the enlarged flattened 

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

 base, called the ovary (o'-va-ry); and the slender part 

 connecting the two, the style. The ovary contains 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 ovaries contain more 

 than one ovule. 



Recapitulating, the parts of the flower are, in the or- 

 der we have considered them: 



a The calyx; when divided, the parts are called 



b The corolla; when divided, the parts are called 



petals. 

 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. 



