118 



THE SURVIVAL OP THE UNLIKE. 



[IV. 



that we have a real species — that is, one which has no 

 genealogy — in cultivation besides Lycoperskum escu- 

 lentum, and it is not regarded by horticulturists as 

 worthy such explicit description or separation from 

 the common type of tomatoes as either the Upright 

 or the Mikado type is. In fact, gardeners do not look 



J. Lycopersicnm cerasiforme. 



upon it as a distinct species at all, although it is uni- 

 versally received by botanists, and Vilmorin even 

 places it in the genus Solanum. This is the Currant 

 tomato, or L. pimpinellifoUum. 



But the most remarkable feature of the evolution of 



