GROSS ANATOMY OF TEH AMQ10SPEBM8. 313 



Fig. 213.— Heterostyled flowers of Primrose, showing the long-styled 

 form In the left-hand figure, and the short-styled form in the figure on 

 the right. (From Darwin.) 



Fig. 214.— Heterostyled flowers of Buckwheat; the upper flgure show- 

 ing the long-styled form, the lower the short-styled. (From Mttller.) 



In some species of plants there are two or three kinds of flowers, 

 differing as to the relative lengths of the stamens and styles ; these 

 are called heterogonous or heterostyled. When there are two forms, 



