376 



COLLEGE BOTANY 



first used in Ireland, which probably accounts for the conmion 

 name of " Irish potatO'." The name " white potato " is. much 

 more appropriate. 



There are a great many varieties of potatoes and they are 



Fig. 218. — Tomato blossoms. 



extensively cultivated and used throughout the greater paxt of 

 the civilized world. 



Short, cool seasons are especially satisfactory for the grow- 

 ing of the potato. The extreme northern states and Canada are 

 noted for their production of potatoes and furnish most of the 

 seed for the growing of this crop in other states. Although this 

 crop is groAvn throughout the greater part of the United States 



