MALVACE^ 



519 



"naked." To this section belong G. tailense, purpurascens, vilifolium, bar- 

 badense, and brasiliensc. 



G. tailense is the wild cotton of Polynesia. It is not cultivated. G. pur- 

 purascens is known as Bourbon, Porto Rico, and Siam cotton. It is an im- 

 portant cultivated species. G. vilifolium, the vine-leaved cotton, has fur- 



Fic. 215. — Sea Island cotton (Gossypium barbadense). (After Watt.) 



nished a number of valuable cultivated types in Egypt, Antilles, etc. It is 

 closely related to G. barbadense. G. barbadense (Fig. 215) includes the Sea 

 Island cottons of America and Egypt. Watt believes that Sea Island cotton 

 is a modern development, not indigenous to Barbados or any of the West 

 Indian Islands, but probably from somewhere in South America. He says 



