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INDUSTRIAL PLANTS 



Fig. 215. — Upland Cotton. A, flower-bud. B, flower. C, unopened pod. 

 D, open pod, displaying the masses of hairy seeds. E, pistil. F, stamen. 

 G, ovary, cut across. H, seed showing mass of hairs (cotton). J, same, 

 cut vertically, showing the much-folded embryo. (Baillon.) 



whence its culture slowly spread. It was introduced into this 

 country in 1774. Long before the coming of Columbus, how- 

 ever, Sea Island cotton was raised bj' the natives of tropical 

 America. 



Upland cotton yields much the larger amount of fiber 

 which although strong is only about 1-2 cm. long. The 

 Sea Island cotton has a finer fiber, about 2.5-4 cm. long, and 

 is therefore the more valuable; but the yield of the plant is 



