PLATE VIi: 





Dioscorea dumetorum, Race No. 3X2 above and Race No 346 below. 



On the lelt of the half - metre measure two tubers of Dioscorea pentaphylla, 

 van, Linnaei, origin Ceylon : on the right above, four tubers of Dioscorea 

 pentaphylla, Var., malaica, origin Penang : on the right below, tubers of two 

 Dioscorea allied to D. pentaphylla, Nos. 196 and 198 origin Luzon. 



