HOFFMANN: FLORA OF BERKSHIRE COUNTY. 219 



P. agrostoides Spreng. — Sandy shore of Big Pond, Otis; low 

 meadows, Sheffield. 



P. boreale Nash. — Borders of woods and fields, roadsides; com- 

 mon on the plateau; occasional in the valley, Cheshire (Churchill); 

 low ground, Stockbridge; border of marsh, Monterey; upper part of 

 The Dome, Mt. Washington. 



P. capillare L., var. occidentale Rydberg. Old-witch Grass. — 

 {P. capillare Man. ed. 7 in part and 111. Fl. ed. 2.) 



Sandy soil, ledges and waste ground; common. 



P. clandestinum L. — Thickets, chiefly in alluvial soil; frequent. 

 Altitude I.IOO feet, Hoosac Mt., Florida. 



P. dichotomum L. — Dry rocky woods; frequent in the valley. 



P. heterophyllum Bosc. — {P. columbianum Man. ed. 7 and 111. 

 Fl. ed. 2; vid. Rhodora, 14: 171, 1912.) 



Dry rocky or sandy woods; occasional in the soutliern and western 

 parts of the County. Stockbridge; West Stockbridge; Alford; 

 Sheffield. 



P. huachucae Ashe. — Meadow, West Stockbridge. 



var. fasciculatum (Torr.) Hubbard. — (P. huachucae, var. silvicola 

 Man. ed. 7; P. huachucae 111. Fl. ed. 2 in part; vid. Rhodora, 14: 171, 

 1912.) 



Dry woods and clearings; common. 



P. implicatum Scribn.— Dry woods, clearings, hillside pastures, 

 wet roadsides; common. 



P. latifolium L. — Thickets and clearings in rich woodland; com- 

 mon in the valley. Not noted on the plateau. 



P. linearifolium Scribn. — Dry open woods and sandy fields; com- 

 mon. 



P. MiLiACEUM L. European Millet. — Railroad track, Washing- 

 ton; waste ground, Great Barrington. 



P. sphaerocarpon Ell. — Borders of dry woods, Great Barrington; 

 open glade, Slicllicld. 



P. strictum Pursh. — {P. depauprrafum Man. ed. 7 and III. V\. ed. 

 2; vid. Rhodora, 14: 1()9, 1912.) 



Sterile fields, dry open woods and rocky li-dges; fre(iuent. 



P. tennesseense Ashe. — Clearings, wood roads, dry or wet woods; 

 river banks; frecjuent. 



An aberrant form from West Stockl)ri(lge closely approaches /'. 

 Lindhcimeri Nash, according to Mr. F. Tracy Hubbard., 



