FLOUA OF TUE Ul'l'ER SUS^^UKHANNA. Ill) 



CYPERACE/C. 



CYPKRrS L. 



C. diandrus Torr. Low C\ i'krls. Common in low grounds and 

 on tlie banks of rivers and streams. Annual. 



C. rivularis Kunth. Shimm; Cyi'Ekus. Along Apalachin Creek 

 with the preceding, Fennot Scales dark chestnut color. ( C 

 titandncs, var. castaneiis Torr.) 



C. arlstatus Rottb. Awned Cvierus. Rare. Harrington's Is- 

 land, Lucy. Shores of the Susquehanna, Clute. The only 

 stations. This species is very small and may easily be over- 

 looked. 



C. dentatus Torr. Toothed Cvi-erus. Pond Brook; not com- 

 mon, Clute. The only station. Scales reddish-brown, tips 

 spreading, appearing as if toothed. 



C. esculentus L. Yellow Nit- Grass. Harrington's Island, 

 Lucy. Apalachin Creek, Fcnno. Oxford, Coville. Near Sus- 

 quehanna, Graves. Elsewhere not reported. Root usually 

 bearing small tubers. Sometimes becomes troublesome as a 

 weed, but with us the plant is rare. 



C. strigosus L, Straw-colored Cvi'ERus. Common throughout 

 in low grounds. A variable species. 



DULICHIUM L. C. Rkhard. 



D. arundinaceum ( L.) Britton. Common Dllichrm. Plenti- 

 ful on the borders of swamps and streams. ( D. spathacetim 

 Pers. ) 



ELEOCHARIS R. Bk. 



E. ovata (Roth) Roem. cV Schult. Ovate Si'IKe-rcsh. Very 

 common throughout our range in wet and muddy places. Well 

 known to sight at least. Bristles of the spike six to eight. 



E. palustris ( Roth) Roem. iV Schult. Siike-rlsh. Not com- 

 mon. Butler Lake and borders of ponds, Graves. Apalachin, 

 in shallow water, Fenno. Bristles, four. 



