FLORA OF RAINY RIVER 
67 
143. Salix discolor Muhl. Glaiicus Willow. River bank. April, 
1915. 
195. Salix petiolaris Sm. Slender Willow. River bank. 
144. Salix humilis Marsh. Prairie Willow. River bank. April, 
1915. 
91. Populus tremuloides Michx. American Aspen. River 
bank. Common. 
90. Populus halsamifera L. Tacamahac. River bank. Very 
common. 
170. Populus candicans. Ait. Balm-of-Gilead. River bank. 
May, 1915. 
BETULACE^. 
68, 69. Gorylus rostrata Ait. Beaked Hazel-nut. River bank. 
158. Ostrya. American Hop Hornbeam. Ironwood. River 
bank. May, 1915. 
174. Betula alha v. papyrifera (Marsh) Spach. River bank. 
Common. May, 1915. 
FAGACE^. 
196. Quercus macrocarpa Michx. Bur Oak. River bank. May, 
1915. 
URTICAGE^. 
199. TJlmus americana L. White Elm. River bank. May, 1915. 
ARISTOLOCHIACE^. 
62. Asarum canadense L. Wild Ginger. River bank. Common 
150. Asarum canadense L. Wild Ginger. May,. 1915. 
POLYGONACE^. 
103. Rumex mexicana Meissn. Dock. Cleared ground. Rather 
common. 
88. Polygonum MuhlenhergU (Meissn.) Wats. Knotweed. 
Cleared ground. 
86. Polygonum acre HBK. Water Smartweed. On Canadian 
bank. 
89. Polygonum Per sicariah. Lady ’s Thumb. Cleared ground. 
235. Polygonum convolvulus L. Black Bindweed’. Cleared 
ground — climbing on fences. June, 1915. 
87. Polygonum cilinode Michx. Black Bindweed. Cleared 
ground. Employed as an ornamental vine for cover- 
ing fences. 
