LIST OF HIGHER SEED-PRODUCING PLANTS. 183 
Salix petiolaris Sm. Linn. Trans. VI, 122 (1802). 
S. grisea WILLD. Spec. IV, 699 (1805). 
3. fuscata and rosmarinifolia PursH, Fl] Am. ITI, 612 (1814). 
S. sericea Muuu. Berl. Mag. IV. 240 (1804). 
S. pennsylvanica SAL. Wob. t. 95 (—). 
S. grisea var. subglabrata Kocu, Comm. 21 (1828). 
S. petiolaris var. gracilis ANDERS. Sal. Monog. 109 (1867). 
Wats. and Coult., Gray’s Man. 6 ed. 483; Britt., Fl. N. J. 225; Mac., Fl. 
Can. I, 453; Upham, Fl. Minn. 129. 
North America: N. B., Ont., Man. to Brit. Col.; 8. to 
N. J. and Va.; W. to Minn. and Mont. 
Minn. valley: N. E. and S. E. district; banks of 
streams and low meadows. 
HERB.: Bailey 359, Mud river. Sandberg 610, Goodhue 
Co.; var. gracilis Anders., Sheldon 1929, Lake Harriet; Bailey 
143, Vermilion lake; Bailey 361, Mud river. 
&, 
Salix tristis Arr. Hort. Kew. III, 398 (1789). 
S. longirostris Micax. Fl. N. Am. II, 226 (1803). 
S. muhlenbergiana WILLD. Spec. IV, 692 (1805). 
Wats. and Coult., Gray’s Man. 6 ed. 483; Britt., Fl. N. J. 225; Upham, 
Fl. Minn. 129; Mac., Fl. Can. I, 455; Chap., Fl. S. St. 430; Webb., Appx. 
Neb. 27. 
North America: N.S. to N. Eng., N. J. and mts. of 
Ga.; W. to Minn., Neb. and Mo. 
Minn. valley: Forest district; infrequent or local; 
river or lake banks. 
HERB.: ? Holzinger 257, Winona. 
Salix humilis Marse. Arbust. Amer. 140 (1785). 
S. conifera WILLD. Pursh, FI. I, 612 (1814). 
S. longirostris Micux. FI. N. Am. II, 226 (1803), 
S. muhlenbergiana PursH, Fl. Am. I, 609 (1814). 
Wats. and Coult., Gray’s Man. 6 ed. 483; Britt., Fl. N. J. 225; Webb., 
Fl. Neb. 110; Upham, Fl. Minn. 129; Mac., Fl. Can. I, 449; Chap., Fl. 8. St. 
430; Mac., Fl. Can. II, 358; Cov., Fl. Ark. 221. 
North America: N. S., N. Br., Q. Ont., to Lake Hu- 
ron region and Man.; S. to N. Eng., N. J. and N. Car.; W. to 
Minn. and Neb. 
Minn. valley: Forest district; dry, sandy places and 
barrens. 
HERB.: Sheldon 372, Madison Lake, Blue Earth Co.; 
Sheldon 1615, Minneapolis;-Sandberg 507, Red Wing; Bailey 221, 
Vermilion lake; Bailey 408, Burntside lake; Bailey 130, Ver- 
milion lake; Bailey 286, Vermilion lake; Kassube 218, Minne. 
apolis. 
