How Domestic Varieties Originate 253 



in productiveness and efficiency of the types we 

 already possess; and this augmentation must come 

 chiefly in the form of a gradual evolution under the 

 stimulus of good care. The man who will accomplish 

 most for the amelioration and unfolding of the forms of 

 plants is he who fixes his eyes steadily upon the future, 

 and, with the inspiration of a long forecast, urges the 

 betterment of all conditions in which plants grow. 



SPECIFIC EXAMPLES 



The foregoing principles and discussions will become 

 more concrete if a few actual examples of the origination 

 of varieties are given. To 

 begin with a very simple 

 case, we relate the intro- 

 duction of the varieties of 

 the dewberries, for this 

 fruit is yet little cultivated, 

 the varieties are few, and 

 the domestication of it is 

 not yet fifty years old. 



The dewberry and black- 

 berry. - The dewberries 

 are native fruits, and it is 

 only within twenty-five 

 years that they have 

 become prominent among 

 fruit-growers. The most 

 important is the Lucretia. 



r . < i . FIG. 69. Type of pompon chrys- 



ThlS was found growing anthemum. Grown outdoors, 



wild on a plantation in th no special care. 



