66 NEW YORK STATE MUSEUM 



Agropyron repens (L.) Beauv. 



Quack grass 



Grass lands, specially around barns and dwellings. Common. 



July-September. 



Agropyron caninum (L.) R. & S. 



Awned wheat grass 



Open woods and thickets and along their borders. Frequent. 



July. 



Hordeum jubatum L. 



Squirrel tail grass 



Along the Delaware, Lackawanna and Western Railroad and 



in gardens, as a weed, at Apalachin. Infrequent. July. 



Elymus striatus Willd. 



Slender ivild rye 



River banks in shade. Common. June. 



Elymus virginicus L. 



Terrell grass 



River banks. Common. July- August. 



Elymus canadensis L. 

 Nodding ivild rye 

 River banks. Abundant. July- August. 



Elymus canadensis glaucifolius (Willd.) Torr. 

 Glaucous wild rye 

 With the preceding species and evidently only a glaucous form 

 of it. July-August. 



Hystrix hystrix (L.) Millsp. 

 Asprella hystrix Willd. 

 Bottle l)rush grass 

 In rocky woods and along streams. Frequent. Spikelets 



easily detached. July. 



CYPERACEAE 



Cyperus diandnis Ton-. 

 Low cyperus 

 Along streams in wet soil. Frequent. August- September. 



