Bui. 1167, U. S. Dept. of Agriculture. 
Plate II 
Fig. I. — Tuber of a Variety of the Lesser Yam (Dioscorea esculenta 
(Lour.) Burkill). 
The skin of the tubers of this species resembles that of the white potato ; but is much tougher. 
The flesh is snowy white, mealy, and usually slightly sweet. (P27118FS; natural size.) 
Fig. 2. — Tubers of the Acom (Dioscorea latifolia Benth.) from Brazil. 
This species of yam, under various local names, is grown in different parts of tropical America and 
in the Old World Tropics. The crop is borne aboveground in the axils of the leaves. The speci- 
mens shown above weigh 4 to 6 ounces each. (P25411FS.) 
