74 
BULLETIN 794, U. S. DEPARTMENT OP AGRICULTURE. 
SUBMERGED 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 (Wolffia punctata) . 
25. Star duckweed (Lemna trisulca). 
Wild-duck foods. — Plants in the above list which have considerable value 
as food for wild ducks are : Xos. 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. 
Distribution of Vegetation. 
shore plants. 
Grasses, sedges, etc., as listed for neighboring lakes; grazed to shore line 
on south side. 
SEMISUBMERGED 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 amphi- 
biutn). 
11. Water hemlock (Cicuta maculcita) . 
SUPMERGED PLANTS. 
Dominant: 
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- 
bium) . 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. 
