MARKET TYPES 263 



group of potatoes, and is therefore grown toward the North, at 

 higher elevations and along the Atlantic Coast, while Rurals are 

 grown on the heavier clay lands and at lower elevations, as Western 

 New York. 



In Southeastern States. Here early varieties are most ex- 

 tensively grown for Northern markets. For shipping green, the col- 

 ored potatoes are usually preferred to white, and here varieties of the 

 Rose group are extensively used, also both Triumph and Cobbler. 



North Central States. In the northern part of this region, the 



FIG. 104. Russet Burbank, representing the medium long types of the Burbank group. 

 Most Burbanks have a smooth skin, but this is a russet type (34 natural siz) . 



Rural and Burbank (Fig. 104) groups both give good results, but 

 through the corn belt, early Ohio type is most important, though 

 many varieties are grown to some extent. 



Western States. In Colorado the Rural, Pearl, and Burbanks 

 are the principal groups, while the same three groups are also most 

 important in the inter-mountain basin and on the Pacific Coast, 

 though locally, one variety or another usually leads. 



Market Types. It will be noted that the principal commercial 

 potatoes are either roundish, as in the Irish Cobbler, or oval-flattened, 

 as Rural or Green Mountain ; oblong, as in Rose group, or long, as 



