8 



PROCEEDINGS MANCHESTER INSTITUTE 



columbianum Scribn. 



sphflerocarpon Kll. 



Scribnerianum Nash. 



xaiithophysum Gray. 



clandestinum Iy. 



Boscii Poir. 



latifolium L. 



Echinochloa crusgalli (L.) Beauv. 

 Setaria glauca (Iy.) Beauv. 



viridis (I/.) Beauv. 



italica (Iy.) Beauv. 

 Cenchrus carolinianus Walt. 

 Zizania palustris Iy. 

 Leersia virginica Willd. 



oryzoides (L.) Sw. 

 Phalaris canarieiisis L. 



arundinacea L. 

 Anthoxaiithuni odoratum Iy. 

 Oryzopsis pungens (Torr.) Hitchc. 



asperifolia Michx. 



racemosa (Sm.) Ricker. Pelham 

 Aristida dichotoma Michx. 



gracilis Ell. 



Common 

 Rare 

 Common 

 Not rare 

 Common 

 Common 

 Common 

 Common 

 Common 

 Common 



A common escape 

 Common along river banks 

 Rare 

 Common 

 Common 

 On dumps 

 Not common 

 Common 

 Common 

 Common 

 Rare? 

 Common 



Abundant in Pelham 



Muhlenbergia teiiuiflora (Willd.) BSP. 



sylvatica Torr. 



niexicaiia (Iy.) Trin. 



racemosa (Michx.) BSP. 



Schreberi J. F. Gmel. 



Apparently introduced 



Brachyelytrum erectum (Schreb.) Beauv. 

 Phleum prateiise L. 



Not rare 

 Common 

 Common 

 Common 



not common 

 Common 

 A common escape 



