132 B0TAN*. 



white, and often as light and agreeable as a potatoe. It 

 abounds in Karen gardens but is rarely seen among the 

 Burmese, or in the market. 

 Dioscorea. 



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LARGE WHITE YAM. 



There are several different species and varieties of white 

 yams in cultivation. The one most in repute has arrow- 

 headed cordate leaves. 



Dioscorea globosa. 



DARK PURPLE YAM. 



A yam with a dark purple root is one of our best yams, 

 and is extensively cultivated both by Karens and Burmese. 

 Dioscorea atropurpurea. 



WILD YAM. 



There are several indigenous species of yams, which are 

 eaten by the Karens in times of scarcity, though very acrid. 

 One is remarkable for its large ternate leaves, of which its 

 leaflets are sometimes nearly a foot long, and six inches 

 Wide. 



Dioscorea chrmona. 



SWEET POTATOE, 



The sweet potatoe is very abundant but it is vastly in- 

 ferior both in size and quality to the sweet potatoe of the 

 Southern States of America. 



Batatas e chilis. 



Convolvulus batatas. 



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