250 Plant-Breeding 



plantation, chooses his plants from that part of his field 

 which pleases him best, rather than from those plants 

 that most nearly correspond to the original type of the 

 Wilson. That is, the unconscious selection on the part 

 of the grower takes no account of what the variety was, 

 but only of what it ought to be, and this ideal differs with 



FIG. 66. Wild form of Chrysanthemum indicum, as grown in England. 



every person. It is not surprising, therefore, to find strains 

 of Wilson strawberry as unlike as are many named vari- 

 eties ; and it is to be expected that all the strains now in 

 existence have departed considerably from the original 

 type." Bailey, earlier editions. 



This example borrowed from the strawberry is a most 

 important one, because it illustrates how a variety may 



