PROPAGATION OP WILD-DUCK POODS. 3 
Table I. — Wild-duck foods not at present on the market — Continued. 
No. 
Common name. 
Scientific name. 
General range. 
Local conditions. 
Smartweed 
Do 
Do 
Do 
Do 
Do 
Do 
Saltwort 
Do 
Water primrose . . 
Water pennywort 
Polygonum amphibium 
Polygonum pennsylvani- 
cum. 
Polygonum opelousanum . 
Polygonum hydropiper- 
oides. 
Polygonum hydropiper 
Polygonum punctatum.... 
Polygonum sagittatum 
Salicornia europxa 
Salicornia ambigua 
Jussisea leptocarpa 
Hydrocotyle umbcUata 
United States 
....do 
Eastern States 
Do. 
United States 
Do. 
Northern Hemisphere. 
Do. 
North America 
Do. 
United States 
Do. 
Northern Hemisphere. 
Salt marshes and 
beaches. 
Do. 
Southeastern States . . . 
Swamps. 
United States 
Do. 
Were all these plants available to persons interested in improving 
the food supply of wild ducks the outlook would be most satisfactory, 
for from these and the plants hitherto listed and described something 
of value could be selected for almost any environmental condition. 
Classifying the plants recommended for propagation according to 
the conditions to which they are suited, we have as a salt-water plant, 
eelgrass ; for brackish water, widgeon-grass, sago pondw T eed, and wild 
celery, all of which also grow in fresh water, the last two abund- 
antly ; for fresh water with slight current, wild rice, wild celery, all 
the pondweeds, and watercress ; for fresh water that is quiet except 
for wind currents, pondweeds, banana waterlily, musk grasses, 
waterweed, and coontail; for the border line between water and 
marsh or for shallow fresh water, delta potato, wapato, wild 
millet, frogbit, and thalia; for small openings in marshes or other 
absolutely quiet waters, duckweeds; for the margin of fresh water 
* where there is no marsh, wild millet ; for land dry in summer and 
overflowed in winter, chufa and wild millet; for bodies of fresh 
water, almost always full but sometimes drying up in summer, in 
shallow places wapato and delta potato, and in deeper water, the 
tuberous white waterlily ; and for swamps, swamp privet and water 
elm. 
A recent study of the vegetation of the lakes of the Nebraska sand- 
hill region discloses the important fact that widgeon-grass and sago 
pondweed withstand alkaline conditions better than any other plants. 
It is probable that wild celery also will be found to have a degree 
of endurance of alkalinity. 
Some of the new plants listed in Table I are especially desirable, 
because they are suitable for certain situations besides those inhabited 
by the plants mentioned in the last two paragraphs. They include 
