IV.] THE TOMATO SPECIES. 123 



know definitely what their origins were, and they, 

 therefore, answer all the purposes of experimental 

 evolution. The evolution of the tomato is so interest- 

 ing and it is typical of so many garden plants, that it 



O. Lyeopersicum agrinioniaefolium. Peru. 



will profit us to give it even closer attention. The 

 pictures will help us. Fig. A represents the foliage 

 and fruit of the tomato of a generation and more ago, 



