74 



BULLETIN 794, U. S. DEPAETMENT OF AGRICULTURE. 



SUBMEEGED PLANTS. 



Dominant: 



21. Sago pondweed (Potamogeton pectina- 



tus). 

 Secondary species: 



22. Curly pondweed (Potamogeton per- 



foliatus richardsonii) . Sparse. 



23. Spike rush (Eleocharis, probably 

 glaucescens). 



FLOATING PLANTS. 



24. Small pondweed {Lemna minor). i 26. Water-meal (Wolfpa punctata). 



25. Star duckweed (Lemna trisulca). j 



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

 as food for wild ducks are : Nos. 15, 21, 24, and 25 ; those of less importance are : 

 Nos. 1, 2, 3 (19, 23), 5, 17, 18, 20, 22, and 26; the remainder are of no known 

 value. 



RENO LAKE, GARDEN COUNTY. 



September 29, 1915. 



Description. — Marsh on north side. Water 4 to 5 feet deep ; bottom mostly 

 sandy ; muck bottom in marsh. No inlet or outlet. 



DiSTKIBTJTION OF VEGETATION. 

 SHOEE PLANTS. 



Grasses, sedges, etc., as listed for neij 

 on south side. 



3oring lakes ; grazed to shore line 



SEMISUBMEEGED PLANTS. 



Dominant: 



1. Tule (Scirpus validus). 

 Secondary species: 



2. Cat-tail (Typha latifolia). Common. 



3. Bur reed (Sparganium eurycarpum). 



4. Wapato (Sagittaria latifolia). Common. 



5. Cord-grass (Spartina gracilis). Com- 



mon. 



6. Reed (Phragmites communis). Com- 



mon. 



7. Three-square (Scirpus americanus). 



Common. 



8. Big bulrush (Scirpus occidentalis) . 



Rare. 



9. Spike rush (Eleocharis, probably 



glaucescens ) . Abundant. 



10. Water smartweed (Polygonum amplii- 



Mum ) . 



11. Water hemlock (Cicuta macula t a) . 



SUBMEEGED PLANTS. 



Dominamt: 



12. Sago pondweed (Potamogeton pectina- 



tus).* Mature fruit. 

 Secondary species: 



13. Small pondweed (Potamogeton pusil- 



lus). Common. 



14. Widgeon grass (Ruppia occidentalis).* 



15. Spike rush (Eleocharis acicularis). 



16. Spike rush (Eleocharis, probably 



glaucescens) . 



17. Water smartweed (Polygonum amphi- 



Mum) . Common. 



18. Bladderwort (Utricularia vulgaris). 



Common. 



FLOATING PLANT. 

 19. Star duckweed (Lemna trisulca).* 



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

 food for wild-ducks are; Nos. 1, 4, 8, 12, 13, 14, and 19; those of less im- 

 portance are: Nos. 3, 5. 7, 9 (16), 10 (17), and 15; the remainder are of no 

 known value. 



