125 



Aristida diehotoma, Michx. (Poverty Grass.) 



Frequent in poor soil. 

 Aristida gracilis, Ml. 



Danvers, 1819 (Oakes in Hov. Mag., Vol. XIII), and in the same 



region, 1878 (J. H. Sears). 

 Aristida purpurascens. Pair. 



On W. P. Upliatn's farm, Peabody (W. P. Conant). 

 Aristida tuberculosa, Nutt. 



Plum Island, 1829 (Oakes), and same station, near a farm house on 



the Ipswich end of the Island, 1876 (J. R.). 



Spartina cynosuroides, Willd. 

 ' Ipswich river banks, and near the salt water everywhere. 



Spartina juncea, Willd. 

 Salt marshes along the entire shore. Common. 



Spartina striata. Both. (Salt Marsh Grass.) 

 Between tides in all the inlets. This is the "Thatch" of the far- 

 mers. 



Bouteloua oligostachya, Torr. 

 Near the old carpet factory, Tapleyville, 1880 (J. H. S. and J. R.). 

 Probably introduced from the west with wool. 



Eleusine Indica, Gxrtn. (Dog's-tail Grass.) 

 This is very common at New York city and Philadelphia, but never 

 noticed here until 1878, when it seemed to have established itself 

 on Pennsylvania pier, Salem. (Probably Nat. from India.) 



Trieuspis purpurea, Gtray. (Sand Grass.) 

 Turkey Hill, Ipswich, Newbury ; Nahant beach. 



Daetylis glomerata, L. (Orchard Grass.) 

 Fields and roadsides. Common. (Nat. from Eu.) 



Eatonia Pennsylvanica, Gray. 

 Burnt land "Blind Hole," Danvers (J. H. Sears); West Newbury 

 (W. P. Conant). 



Glyceria Canadensis, Trin. (Rattlesnake Grass.) 



Common in open swamps. 

 Glyceria obtusa, Trin. 



Swamps and wet places. Frequent. 

 Glyceria elongata, Trin. 



Essex county (Oakes). 

 Glyceria nervata, Trin. (Fowl Meadow Grass.) 



Common in meadows. 

 Glyceria pallida, Trin. 



In shallow water. Boxford, etc. Not very common. 



