18 



4- Tsuga canadensis L. — Weymouth fir, Juniata River, Pa. 

 (Schoepf, I, p. 226.) 



Zannichelliaceae 



5. Potamogeton americaniis Chamisso and Schlechtendahl. — 

 Flag, cane grass, Reelfoot Lake, Tenn. 



6. Potamogeton pectinatus L. — Potato moss, duck moss, duck 

 grass. Salt Lake Valley, Utah. (A. Wetmore.) 



7. Ruppia maritima L. — Redhead grass, Horn Point, Va. 



8. Naias flexilis Willdenow. — Cedar grass, Horn Point, Va. 



SCHEUCH2ERIACEAE 



9. Triglochin maritima L. — Goose grass. Lower Klamath 

 Lake, Calif. 



Vallisneriaceae 



10. Vallisneria spiralis L. — Celery grass, Horn Point, Va.; 

 Canvas-back grass, Chesapeake Bay, Md. (Sharpless in Audu- 

 bon, Ornithological Biography, 5, 1839, p. 137.) 



Gramineae 



11. Echinochloa crus-galli L. — Whiteshank, red-shank, Bruns- 

 wick Co., S. C; cat-tail, Charleston, S. C, Savannah, Ga. 



12. Zizaniopsis miliacea Michaux. — Sword grass, Goose Creek, 

 S. C. 



13. Zizania aqiiatica L. — Water tare-grass (Pennant, H, 

 p. 263) ; reed is the name that has long been, and still is in use in 

 the vicinity of Philadelphia, Pa., and Wilmington, Del. 



14. Calamagrostis inexpansa A. Gray. — Wild red top, Lower 

 Klamath Lake, Calif. 



15. Spartina michauxiana Hitchcock. — Prairie grass, ramrod 

 grass, Peruque, Mo.; lowland grass, sawgrass, rip-gut, Hart- 

 mann. Mo. 



15a. Scolochloa festucacea Willdenow. — Wild Rice, North 

 Dakota. (F. P. Metcalf.) 



Cyperaceae 



16. Eleocharis palustris L. — Wire grass, Salt Lake Valley, 

 Utah. (A. Wetmore.) 



