64 
BULLETIN 794, U. S. DEPARTMENT OF AGRICULTURE. 
FLOATING PLANTS. 
59. Star duckweed 
Abundant. 
(T.emna trisulca)* 
57. Big duckweed (Spirodela polyrhiza).* 
Common. 
58. Small duckweed (Lemna minor).* Com- 
mon. 
Wild-duck foods. — Plants in the above list which ha\e considerable value as 
food for wild ducks are : Nos. 26, 31, 32, 35, 43, 44, 48, 50. 51, 57. 58, and 59 ; 
those of less importance are: Nos. 1, 2. 3, 4 (33), 7 (39, 53), 12, 13, 24, 29, 30, 
34, 36, 37, 42, 46, 49, 54, and 55 ; the remainder are of no known value. 
NORTH CODY LAKE, CHERRY COUNTY. 
September 20, 1915. 
Description. — Average greatest depth 4 feet; bottom generally mucky. Con- 
nected with South Cody Lake during high water. 
Distribution of Vegetation. 
SHORE PLANTS. 
-. Typical wet-meadow plants. 
1. Cord-grass (Spartina michauxiana) . 
2. Wild millet (Echinochloa crus-galli) . 
3. Switchgrass (Panicum virgatum). 
4. Squirrel-tail (Hordeum jubatum). 
5. Satin grass (Muhlenbergia foliosa). 
6. Sedge (Cyperus speciosus). 
7. Rush (Junous torreyi). 
8. Rush (Juncus balticus). 
9. Richweed (Pilea pumila). 
10. Water smartweed (Polygonum amphi- 
bium). 
11. Water pepper (Polygonum punctatum). 
12. Lamb's-quarters (Chenopodium album). 
13. Water hemlock (Cicuta bulbifera). 
14. Water hoarhound (Lycopus asper). 
15. Marsh mint (Stachys palustris). 
16. Hairy germander (Teucrium occiden- 
tale). 
17. Small cleavers (Galium trifidum). 
18. Ragweed (Ambrosia elntior). 
19. Goldenrod (Solidago altissima). 
20. Bur marigold (Bidens laevis). 
21. Sunflower (Helianthus annuus). 
22. Willow aster (Aster salicifolius) . 
SEMISUBMERGED PLANTS. 
Dominants: 
23. Reed (Phragmites communis) . 
24. Tule (Scirpus validus). 
Secondary species: 
25. Cat-tail (Typha latifoUa). 
Bur reed (Sparganium eurycarpum). 
Common. 
Water plantain (Alisma subcordatum) .* 
Common. 
Wapato (Sagittaria latifoUa). 
Wild rice (Zizania palustris). Abun- 
dant. 
Cord - grass (Spartina michauxiana). 
Abundant. 
26. 
27. 
28. 
29. 
30. 
31. Three-square (Scirpus americanus). 
Common. 
32. River bulrush (Scirpus fluviatilis). 
Common. 
33. Spike rush (Eleocharis, probably aci- 
cularis). 
34. Bristly sedge (Carex comosa). Abun- 
dant. 
35. Curly dock (Rumex crispus). Common. 
36. Water smartweed (Polygonum amphi- 
bium). 
37. Water hemlock (Cicuta maculata) . 
38. Swamp milkweed (Asclepias incar- 
nata) . 
SUBMERGED PLANTS. 
Dominant: 
39. Coontail (Ceratophyllum demersum). 
Secondary species: 
40. Musk grass (Chara sp.).* Common. 
41. Water moss (Drepanocladus sp.). 
42. Curly pondweed (Potamogeton per- 
foliatus richardsonii) . Common. 
43. Variable pondweed (Potamogeton heter- 
ophyllus).* 
44. Sago pondweed (Potamogeton pectina- 
tus). Abundant. 
45. Eelgrass pondweed (Potamogeton com- 
prcssus), 
46. Bushy pondweed (Xajas fexilis). 
Common. 
47. Spike rush (Eleocharis, probably aci- 
cularis). 
48. Water smartweed (Polygonum amphi- 
bium). Common. 
49. Yellow water-crowfoot (Ranunculus 
delphinifolius) .* 
50. Water milfoil (Myriophyllum spica- 
tum). Abundant. 
51. Bladderwort (Utricularia vulgaris).* 
