126 



Glyceria aquatica, Smith. (Reed Meadow Grass.) 



"Ipswich river marsh" (Dr. Chas. Pickeriog) ; West Newbury {W. 



P. Conant) ; Lynn (J. H. Sears). ' 

 Glyceria fluitans, B. Br. 



Shallow water. Various parts of tlie county, but not common. 

 Glyceria aeutiflora, Torr. 



In similar situations to the last. Not common. 

 Glyceria maritima, Wahl. 



Along the coast. Common. 

 Glyceria distans, Wahl. 



Plum Island (Oakes). 



Brizopyrum spicatum. Hook. 

 Frequent on the salt marshes. 



Poa annua, L. (Low Speab-Gkass.) 



Very common. 

 Poa compressa, L. (Wire-Gbass.) 



Common in dry places. 

 Poa serotina, Ehrhart. (False Eedtop.) 



Sometimes called Fowl Meadow-grass. Essex county (Oakes), 



"Wenham, Byfleld, etc. 

 Poa pratensis, L. (CoMMOJsr Mbadow-Grass ; June Grass ; Ken- 



TUCKV Blue-Grass.) 



Common, both in a cultivated and wild state. 

 Poa trivialis, X. (Eoughish Meadow-Gkass.) 



Ipswich (Oakes) ; West Newbury (W. P. Conant) ; environs of 



Salem (Dr. Chas. Pickering, Chron. Hist. PI., p. 279). (Nat. from 



Eu.) 



Eragrostis poseoides, Beauv., var. megastachya. (Gray's Man- 

 ual). 



First noticed on the "dump," So. Boston, by Mr. C. E. Faxon; 

 Marblehead, 1878 (Mr. Bartlett). (Nat. from Eu.) 



Eragrostis oapillaris, Mes. 



"Possibly introduced into New England by the aboriginal tribes; 

 observed by myself in the environs of Salem, chiefly in cultivated 

 ground" (Dr. Chas. Pickering, Chron. Hist. PL, p. 810). Probably 

 noticed about 1824:. 



Eragrostis tenuis, Gray. 

 "In the same situations with the preceding, in the environs of 

 Salem, and as far as Philadelphia" (Dr. Chas. Pickering, Chron. 

 Hist. PL, p. 810). Probably noticed at the same date. There is no 

 other record of this and the last species in Essex county. 



Eragrostis pilosa, Beauv. 

 Salem, two stations (W. P. Conant). (Nat. from Eu.) 



