V Vacciniaceæ, 220 Vaccinium, 221 cæspitosum, 221 erythrococcum, 222 globulare, 223 ovalifolium, 222 Vagnera, 46 amplexicaulis, 47 stellata, 48 Valerian Family, 271 Northern, 271 Scouler’s, 272 Valeriana Scouleri, 272 septentrionalis, 271 sitchensis, 272 VALERIANACEÆ, 271 Veratrum, 37 viride, 37 Veronica, 248 americana, 252 serphyllifolia, 253 Wormskjoldii, 253 Vetch Alpine Milk, 170 American, 179 Arctic Milk, 172 Ascending Milk, 169 Cow, 179 Indian, 173 Macoun’s 171 Narrow-leaved American, 180 Purple Milk, 169 Slender Milk, 171 Vetchling, Cream-coloured, 181 Marsh, 181 Viburnum, 264 pauciflorium, 266 Vicia, 169 americana, 179 cracca, 179 linearis, 180 Viola adunca longipes, 190 canadensis, 190 cognata, 187 glabella, 189 palustris, 188 sempervirens, 188 VIOLACEÆ, 187 Violet Canada, 190 Dog, 190 Early Blue, 187 Family, 187 Low Yellow, 188 Marsh, 188 Tall Yellow, 189 Virgin’s-Bower, Purple, 91 Vitis-idæa, 221 Vitis-idæa, 224 W Water-leaf Family, 238 Whitlow-Grass Arctic, 114 Golden, 115 Hoary, 116 Willow-Herb Alpine, 196 Broad-leaved, 194 Great, 194 Hornemann’s, 197 Nodding, 196 Yellow, 195 Willow Family, 68 Wind-flower, 93 Wintergreen Bog, 208 Family, 207 Greenish-flowered, 207 Lesser, 209 Liver-leaf, 208 Low, 213 One-flowered, 210 One-sided, 209 Ovate-leaved, 213 Woodsia, 4 oregana, 13 scopulina, 12 Oregon, 13 Rocky Mountain, 12 Wormwood Green, 316 Pasture, 316 Woundwort Marsh, 246 Y Yarrow, 314 Yew Family, 34 Western, 34 Z Zizia, 201 cordata, 203 Zygadenus, 37 elegans, 38 gramineus, 39 Grass-like, 39 Tall, 38