No. 14.] FLOWERING PLANTS AND FERNS. 65 



ile field on bank of the Housatonic River, Milford (Eames) ; 

 field, Westport (Eames & C. C. Godfrey). July. Adventive 

 from Europe. 



POLYPOGON Desf. Beard Grass. 



Polypogon monspeliensis (L.) Desf. 

 Beard Grass. 



Rare. Waste places: Manchester (A. W. Driggs). July 



— Sept. Fugitive from Europe. 



CALAMAGROSTIS Adans. Reed Bent Grass. 



Calamagrostis canadensis (Michx.) Beauv. 



Blue-joint Grass. Blue-stem. Reed Bent Grass. 



Frequent. Wet meadows and borders of swamps, July, 

 A valuable grass for wet grounds, making good hay if cut 

 early. 



Calamagrostis cinnoides (Muhl.) Barton (like Cinna, the Reed 

 Grass). 

 Calamagrostis NuttalUana Steud. 



Occasional. Bogs and open swamps. Aug. — Sept. 



AMMOPHILA Host. 



Ammophila arenaria (L.) Link (of sand). 

 Ainmophila arundinacea Host. 

 Beach Grass, Sea Sand Reed. Psamma. Marram. 



Common along the coast on sand dunes and beaches. Aug. 



— Sept, 



Most valuable as a sand binder, its long underground 

 stems holding the sand together and preventing it from being 

 blown by the wind. 



CINNA L. Wood Reed Grass. 



Cinna arundinacea L. (reed-like). 



Frequent. Wet woods and shaded swamps. Aug. — Sept. 



Cinna latifolia (Trev.) Griseb. (broad-leaved). 

 Cinna pendula Trin. 



Rare. Moist shaded rocks: Barkhamsted (A. E. Blewitt), 

 Hartland and Colebrook (Bissell), Salisbury (Mrs. C. S. 

 Phelps) . Aug. — Sept. 



