182 METASPERMAE OF THE MINNESOTA VALLEY. 
N. to Ft. Franklin on Mackenzie and Alaska; Arctic circle in 
Labrador; 8. to N. J., Iowa, Dak. 
Minn. valley: Forest, N. W. and W. districts; absent 
S. W.; peat bogs and marshy meadows around lakes. 
HERB.: Sheldon 238, Turtle lake, Le Sueur Co.; Sheld- 
on 325, Smith's Mills, Blue Earth Co.; Sheldon 124, Madison 
Lake, Blue Earth Co.; She/don 527, Waseca; Ballard 445, Prior’s 
lake, Scott Co.; Sheldon 1619, Minneapolis; Bailey 317, Vermil- 
jon lake; Leiberg 61, Blue Earth Co.; Kassube 220, Minneapolis; 
Sandberg 517, Chisago Co.; Sandberg 518, Chisago lake; Bailey 
137, Vermilion lake (var. pedicillaris Carey). 
Salix cordata Munn. N. Berl. Schr. IV, 236 (1801). 
S.-rigida Munu. Willd. Spec. LV, 667 (1805). 
Wats. and Coult., Gray’s Man. 6 ed. 484; Britt., Fl. N. J. 226; Webb., 
Fl. Neb. 110 in var.; Mac., Fl. Can. 446; Coult., Fl. Colo. 335; Wats., Fl. 
Calif. II, 85; Upham, Fl. Minn. 129; Wats., King Exp. 324. 
North America: N. Br. to Vancouver and N. W. T.; S. 
to N. Eng., N. J. and Ga.; W. to Rockies and W. Colo. 
Minn. valley: Forest district and probably through- 
out; low banks and marshes. 
HERB.: Sandberg 509, Vasa; Sandberg 510, Red Wing. 
Salix cordata MunHL. var. angustata (PURSH) ANDERS. 
Monog. 159 (1867). 
S. angustata PursH, Fl. Am. 613 (1814). 
Wats. and Coult., Gray’s Man. 6 ed. 484; Britt., Fl. N. J. 226; Mazc., 
Fi. Can. I, 447; Upham, Fl. Minn. 129. 
North America: Ont. to N. Eng. and N. J.; W. to 
Minn. and Mo. 
Minn. valley: Reported from N. edge; infrequent; low 
banks and marshes. 
Salix candida Witup. Spec. IV, 708 (1805). 
S. incana Micux. Fl N. Am. II, 225 (1803). 
S. tomentosa SCHRAD. in Herb. 
S. nivea SM. in Herb. 
Wats. and Coult , Gray’s Man. 6 ed. 484; Britt., Fl. N. J. 225; Mac., Fl 
Can. I, 446; Upham, Fl. Minn. 128; Coult., Fl. Colo. 337. 
North America: Labrador, Anticosti, Q., Ont. to 
Hudson Bay, Saskatchewan and N. W. 'T.; S. to N. Eng., N. J., 
Iowa and Minn.; also, to Mont. and Colo. 
Minn. valley: Forest district; especially N. E. district; 
banks of streams and lakes. 
HERB.: Sheldon 1613, Ramsey Co.; Kassube 217, Min- 
neapolis; Bailey 392, Mud lake; Bailey 360, Mud river; Sand- 
berg 506, Goodhue Co. 
