Purple-plumed, 163 White Mountain, 163 Yellow, 162 Azaleastrum, 212 albiflorum, 218 B Baneberry, Western Red, 108 Western White, 109 Barberry Family, 109 Batrachium, 91 trichophyllum, 97 Bear-berry, 214 Alpine, 214 Beard-tongue, Blue, 251 Large Purple, 249 Yellow, 250 Bed-straw, Northern, 263 Bellflower Family, 273 BERBERIDACEÆ, 109 Berberis aquifolium, 110 Betony, Wood, 261 Betula, glandulosa, 71 occidentalis, 71 papyrifera, 70 BETULACEÆ, 70 Bilberry, Alpine, 222 Dwarf, 221 Thin-leaved, 223 Birch, Canoe, 70 Family, 70 Paper, 70 Scrub, 71 Western Red, 71 Bishop’s-Cap, Naked, 132 Bistort, Alpine, 78 Black-eyed Susan, 201 Bladder-pod, Double, 117 Bladderwort Family, 262 Bluebell, 274 Blueberry, 222 Blue-eyed Grass, 53 Borage Family, 240 BORAGINACEÆ, 240 Botrychium, lunaria, 1 simplex, 2 virginianium, 2 Bracken, 6 Brake, American Rock, 7 Slender Cliff, 8 BRASSICACEÆ, 111 Braya, 112 humilis, 123 Brooklime, American, 252 Buckbean, 236 Family, 236 Buckwheat Family, 75 Buffalo-berry, Canadian, 192 Bunch-berry, 205 Bunch-flower Family, 36 Buttercup, Low, 102 Meadow, 103 Northern, 99 Pursh’s, 98 Snow, 100 Butterwort, 262