40 



BULLETIN 194, U. S. DEPAETMENT OF AGRICULTURE. 



This probably explains its absence from Loup River and the Garden 

 County lakes. 



In attempting to stock alkaline waters with wild-duck foods, there- 

 fore, it will be best to center efforts upon establishing widgeon grass 

 or sago ]Dondweed. Wild celery withstands salt as well as these two 

 plants and probably would equal them in alkali resistance, though 

 this has not been tried out. A purely theoretical suggestion is that 

 eelgrass {Zostera Tnariria), an inhabitant of ocean-water, might be 

 found adapted to stronger alkaline waters than any of these three 

 plants. 



LIST OF PLANTS OF THE SANDHILL LAKES. 



The descriptions of lakes given in the following pages, the classi- 

 fication of the plants according to their place of growlh, and notes 

 on abundance are taken in the main from the reports of Mr. Ray 

 Thomson. He is responsible, therefore, for the bulk of the occur- 

 rence records. These are based on a system of " collector numbers " 

 which he used in making his reports, and were translated into plant 

 names after the specimens were identified in Washington. Where 

 specimens from any locality were actually examined an asterisk (*) 

 follows the name of the species. Remarks other than those on abun- 

 dance, and a few other obvious field observations, are based on 

 specimens. 



Each list is followed by a paragraph commenting on the value of 

 its components as food for wild ducks. 



LIST OF LAKES VISITED, WITH DATES. 1915. 



Beown County 



Enders Lake Aug. 10, 14 (p. 41). 



Enders Lake Overflow- Aug. 11 (p. 42). 



Marsh Lake Aug. 12, 13 (p. 43). 



Rat Lake Aug. 14 (p. 44). 



Willow Lake Aug. 15 (?) (p. 44). 



West Chain Lake Aug. 16 (p. 45). 



Middle Chain Lake Aug. 16 (p. 46). 



Cheeky County (Easteen Paet). 



Dewey Lake Aug. 21-24 (p. 46). 



Willow Lake— Aug. 23, 24 (p. 48). 



Clear Lake Aug. 25 (p. 49). 



Hackberry Lake Aug. 27 (p. 50). 



Watts Lake Aug. 29 (p. 51). 



Trout Lake Aug. 31 (p. 52). 



Pe'lican Lake Sept. 1 (p. 53). 



Rat Lake Sept. 3, 4 (p. 54). 



Beaver Lake Sept. 3, 4 (p. 55). 



Wendler Swamp Sept. 4, 10 (p. 55). 



Sweetwater Lakes Sept. 6 (p. 56). 



Twenty-one Lake Sept. 6 (p. 57). 



Marsh Lakes Sept. 7 (p. 58). 



Red Deer Lake Sept. 10 (p. 59). 



Ballard Swamp Sept. 10 (p. 59). 



Big Alkali Lake Sept. 13 (p. 60). 



Molly Marsh Sept. 13 (p. 61). 



Hay Lake Sept. 14 (p. 62). 



Cheeey County (Noetheen Part). 

 South Cody Lake__Sept. 18-19 (p. 62). | North Cody Lake Sept. 20 (p. 64). 



