342 LUTHER BURBANK 



Similar modifications in the size of plants, but 

 less striking in degree, are of course common 

 enough under differing conditions of soil, and in 

 particular with varying moisture. But of course 

 such variations do not affect the heredity of the 

 plant appreciably. They have no relation with 

 the production of dwarf and gigantic varieties 

 in the same fraternity through hybridizing, of 

 which we have seen examples among various 

 races of plants. 



With all its attractive qualities, the dahlia is 

 not quite a perfect flower because it lacks 

 fragrance. 



This defect also I have sought to remedy, and 

 as regards the mere matter of production of a 

 fragrant dahlia, have been entirely successful. 

 Unfortunately the new fragrant races have not 

 hitherto combined odoriferousness with the quali- 

 ties of size and form and color that enable them 

 to compete with the best standard varieties. Still, 

 enough has been done to show that with further 

 selection the dahlia may be given a perfume that 

 will greatly enhance its attractiveness. 



RACES OF FRAGRANT DAHLIAS 



In developing a race of fragrant dahlias the 

 same rules of selection that have been repeatedly 

 outlined were followed. 



