PLANTS Ok MANHATTAN AND BLUE ISLAND 79 



Elymus virgmicus L. Terrel Grass. 



Woods. Common. June 30. 

 Elymus canadensis L. Nodding Wild Rye. 



Dry soil, roadsides, etc. Common. June 15 (14). 



Cyperaceae. Sedge Family. 



Cyperus diandrus Torr. 



Manhattan. Common in wet soil. 

 Cyperus infl'exus Muhl. 



Blue Rapids. Once collected along the river margin. 

 Cyperus Schweinitzii Torr. 



Manhattan. Occasional in sandy soil. 

 Cyperus erythrorhizos Muhl. 



Manhattan. River bank. 

 Cyperus speciosus Vahl. 



Manhattan. Frequent in wet ground. 

 Cyperus slrigosus L. 



Moist ground, fields and river banks. Common. 

 Cyperus filicidmis Vahl. 



Dry soil, fields and prairies. Common. June 10. 

 Eleocharis palustris (L.) R. & S. Spike Rush. 



Wet ground. Frequent. 

 Eleocharis acuminata (Muhl.) Nees. 



Wet places. 

 Scirpus americanus Pers. Chair-maker's Rush. 



River banks etc. Occasional. May 30. 

 Scirpus validus Vahl. Great Bulrush. 



Ponds, ditches, etc. Common. June 10. 

 Scirpus atrovirens Muhl. 



Pond margins etc. Common. 

 Scirpus lineatus Michx. 



Blue Rapids. Once collected in bed of ravine. 

 Fuirena simplex Vahl. 



Manhattan. In wet meadow. 

 Car ex hystricina Muhl. Porcupine Sedge. 



Wet places. May 30. 

 Carex trichocarpa Muhl. 



Wet meadows and roadsides. Common. 

 Carex lanuginosa Michx. Wooly Sedge. 



Wet meadows. Common at least at Manhattan. 



