210 COTTON 



a purple-red spot near the inner base of each petal ; seed-cotton falls 

 easily from the fully opened pods. Example : King. 



5. Big-loll Type. This type is characterized by its extremely 

 large bolls sixty-eight or fewer mature bolls yielding one pound of 

 seed-cotton. It may be divided into the following transitional sub- 

 types : 



(a) Storm-proof, big-boll varieties. Example : Triumph. 



(b) Big-boll varieties of the shape which characterizes the semi- 

 cluster type. Example : Truitt. 



(c) Big-boll varieties having neither marked storm resistance 

 nor semicluster shape of plant. Example : Russell. 



6. Long-limb Type. Plants extremely large, with long, woody 

 limbs, which have long internodes. No productive variety is in- 

 cluded in this class and the type is disappearing. 



7. Intermediate Type. In this class may be placed varieties the 

 group relationship of which is uncertain. 



8. Long-staple Upland Type. Plants tall and usually of a semi- 

 cluster type; bolls rather slender and usually especially susceptible 

 to injury from boll-rot (anthracnose) ; seeds densely covered with 

 white fuzz ; fiber long, but weak, and in small proportion by weight 

 to the seed. Example : Griffin. 



The foregoing upland types produce all of the cotton crop of 

 the United States except the small amount of Sea Island cotton 

 grown near the South Atlantic and Gulf Coasts. The staple of 

 upland varieties is used in the manufacture of the coarser cotton 

 fabrics. 



Sea Island Cotton. The Sea Island cotton (G. Barbadense) is 

 grown on or near the coast of South Carolina, Georgia, and Florida. 

 The plant is characterized by its extreme height, and long, slender, 

 smooth branches; by its yellow blooms with their red spots near 

 the base of each petal; by its rather small, slender bolls; and by 

 its long, fine fiber and naked black seeds. The fiber of Sea Island 

 cotton is longer than that of the upland varieties. It is fine and 

 silky and is spun in the finest yarns and used largely for the manu- 

 facture of threads, laces, cambrics, and fine hosiery. 



Description of the Cotton Plant. All the common species of 

 cotton are perennial in frostless climates, but in cultivation they are 



