STRUCTURE.] MORPHOLOGY OF SEXES. 81 



had only male blossoms. He endeavoured to prove, by other 

 instances, that Diclinous plants, situated in wet localities, 

 produce more male than female blossoms. (See Linnaa, 

 vol. xiv. p. 367). 



These facts conclusively establish the important point, that 

 the male and female organs have a common origin, and become 

 one or the other in the course of development, according to 

 the influences to which they are exposed. 



VOL. ir. 



