YOGENS. 63 DICTYOGENS. 
2. D. sativa Linneeus.—(West Inpran Yam.) Fig. 99. 
ot prickly ; leaves alternate, smooth, cordate, with about 9 ribs, the angles 
of the base rounded. 
Habitat. In Tropical America. 
Quality and Uses. The great fleshy roots, filled with starch, are an important article 
____ of food in this and some other species. 
ie 
me 
D) 
Suinax. Linneus. 
— (Order. Smilaceve ; V. K., p. 216.) 
weary superior. Fruit baccate. ae re eo : 
- S. medica Schlechtendahl.—(Vera Cruz Sarsararmta.) Fig. 100,” 
Fig. 99.—Leaf of Dioscorea sativa. ee 
