FLORA OF THE IPFER SUSQUEHANNA. 183 



B. secalinus L. CMh>s. Cheat. Tolerably common in fields 



ami waste places. 

 B. ciliatus L. Woun C^l.s■^. Fre([uent in low woodlands and on 

 the banks of streams. The variety purgans Gray, by some 

 considered a distinct species, is reported with the type. 



LOLIUM L. 



L. perenne L. Rye Grass. Infrequent, Feu no. Rare, Lucy. 

 Found in dry. waste places. 



AGROPYROX J. G.iKT.N. 



A. repens i L.) Beauv. Coicii Gkass. Qiai k Grass. (Jiitch (iRAss. 

 Abundant in gardens, fields and waste places throughout our 

 range. 



A. caninum (L. ) R. & S. Awned Wheat Gka>s. Not uncom- 

 mon in dry fields and woods. 



HORDEUM L. 



H. jubatum L. S«ji irrel-Tail Grass. Occasional in waste 

 grounds throughout. 



ELYMUS L. 



E. Virginicus L. Wilp Rye. Tolerably common, especially on 

 the banks of streams. 



E. Canadensis L. Nlmh.i.n., Will Ryk. Common on river banks 

 throughout our range. 



E. striatus Will'^. Wild Rye. Occasional, /•<;•;/;/</. Rare, CV/^/^'. 

 Elsewhere not reported. 



HYSTRIX M.k.n.h. 



H. Hystrix (L. ) Millsp BorrLE BRr>H Gra>s. Occasional. Usu- 

 ally found on the borders of upUmd woods. {Asprella Hystrix 

 WiUd.) 



EQUISETACE.^. 



EQUISETUM L. 



E. arvense L. Field Horsetail. Very common throughout in 

 any kind of soil. Fertile stems early in spring, brown in color. 

 Sterde, later, much different in appearance from the others. 



