COTTON VARIETIES 



43 



are much closer together as a rule than in any of the types 

 later described in this classification. The size of, bolls 

 and seed is quite variable. 



50. Rio Grande type. — The plants of this group are 

 slender in growth. The fruiting branches are long-jointed, 



Fig. 10. — Plant of the Peterkin variety of cotton, 

 representing the Peterkin group. 



slender, and rather straight. The characters that serve 

 most to distinguish the Rio Grande from other types are 



(1) a high percentage of Hnt, usually 35 to 40 per cent; 



(2) small, nearly naked, dark-colored seeds; (3) bolls 

 mediiam to very small in size, the locks of cotton remain- 

 ing rather compact for some time after the bolls open. 

 This group is named for an early variety which was quite 



