FLOWER POSSIBILITIES 209 



thus proved to be the possessor of a somewhat 

 unusual combination of hereditary factors for 

 leaf formation. 



In a word, then, whereas the experiment with 

 the Heuchera may be described as consisting ex- 

 clusively (so far as the plant developer was con- 

 cerned) of a series of selections, it really involved 

 also the principle of the inducement of variation 

 by unusual environment and the fixing of char- 

 acters by inbreeding. 



And these fundamental principles of plant 

 development must be involved, in one degree or 

 another, in all successful experiments in the de- 

 velopment and fixing of new types of plant or 

 leaf, flower or fruit. 



Let us now witness the application of the same 

 principles to the flower of the plant with refer- 

 ence to the different characteristics of size and 

 color and odor and modified petal or stamen or 

 pistil that may be involved. 



PRODUCING A DESIRED FRAGRANCE INT 

 THE FLOWER 



Probably no other characteristic of the flower 

 is more highly prized than its odor. 



The sweet pea, the rose, and the carnation owe 

 their popularity as much to their fragrance as 

 to their color and form, yet there are numbers of 



