NEBEASKA WILD-DUCK FOODS. 



45 



SEMISTJBMEEGED PLANTS. 



Dominants: 



5. Wapato (Sagittaria latifolia). 



6. Spike rush (Eleocharis acuminata). 



Secondary species: 

 7. Eeed (Phragmites communis). 

 S. Wild rice (Zizania paJiistris) . Rare. 

 9. Big bulrush {Sdrpus occi'dentalis) . 



SUBMERGED PLANTS. 



Dominants : 



10. Sago pondweed {Potamogeton, pectina- 



tus). 



11. Water milfoil (Alyriophyllum spica- 



tum). 

 Secondary species: 



12. Eelgrass pondweed (Potamogeton com- 



pressus). 



13. Floating pondweed (Potamogeton no- 



tans^. 



14. Curly pondweed (Potamogeton perfoH- 



atus richard^onii) . 



15. Small pondweed (Potamogeton pusil- 



lU8), 



Wild-duck foods. — Plants in the above list which have considerable value as 

 food for wild ducks are : Nos. 2, 5, 8, 9, 10, and 15 ; those of lesser importance 

 are : Nos. 1, 3, 11, 12, 13, and 14 ; the remainder are of no known value. 



WEST CHAIN LAKE, BROWN COUNTY. 



August 16, 1915. 



Description. — Little or no marsh area. Well filled with vegetation. Bottom 

 mucky ; depth 4 feet. No inlet ; outlet during high water into Middle Chain 

 Lake. 



DlSTEIBUTIOX OF VEGETATION, 



SHOBE PLANTS. 



About as for neighboring lakes. 



1. Switchgrass (Panicum virgatum). 



2. Wild rye (Elymus canadensis) . 



3. Indian grass (Sorgastrum nutans). 



Flowers. 



4. Eedtop (Agrostis alba). 



SEMISUBMEKGED PLANTS. 



Dominants: 



5. Cat-tail (Typha latifolia).* Mature 



fruit. 



6. Crested wapato (Sagittaria cristata). 



7. Big bulrush (Sdrpus occidentalis) . 



Secondary species: 



8. Wild rice (Zizania palustris). Very 



scattered stand on east end. 



9. Spike rush (Eleocharls acuminata). 

 10. Water smartweed (Polygonum ampM- 



l>ium).* Flowers. 



SXTBMEKGED PLANTS. 



Dominatits: 



11. Waterweed (Philotria canadensis). 



12. Water milfoil (Myriophyllum spica- 



tum). 

 Secondary species: 



13. Sago pondweed (Potamogeton pecti- 



natus).* Mature fruit. 



14. Variable pondweed (potamogeton hete- 



rophyllus).* Flowers. 



15. Floating pondweed (Potamogeton nu- 



tans). 



16. Curly pondweed (Potamogeton perfoli- 



atus riclmrdsonii) . 



17. Long-leaved pondweed (Potamogeton 



americanus).* 



18. Bushy pondweed (Xajas flexilis). 



19. Coontail {Ceratophyllum demersum).* 



Wild-duck foods. — Plants in the above list which have considerable value as 

 food for wild ducks are : Nos. 7, 8, 18, 14, 18, and 19 ; those of less importance 

 are : Nos. 1, 6, 10, 11, 12, 15, 16, and 17 ; the remainder are of no known value. 



