FIVE IMPORTANT WILD-DUCK FOODS. 7 
wet soil, but the tubers are not available for duck food in such places 
unless overflowed in fall and winter. 
The tubers of this plant are known to retain their vitality when 
dried, but more uniform success will probably be had if drying is not 
Fig. 6.— Wapato tubers. C About two-thirds natural size.) 
carried to an extreme. We recommend that the tubers be shipped 
promptly after gathering, in well ventilated packages, and that they 
be planted immediately upon receipt. Wapato is suitable for culti- 
vation in practically all parts of the United States. 
