Ensect Ufsftors. 



225 



rare case of flowers which are fertilized by in- 

 sects being obscurely colored." * 



Thus we see how important a part the insect 

 world has taken in the evolution of the floral 

 world, and how much the beauty and variety of 

 the garden owe to the myriad murmuring wings 

 which ceaselessly ply their appointed task of de- 

 velopment and improvement. 



* " Cross- and Self-Fertilization," p. 374. 



