432 



INDEX. 



Aqtiilegia. 136 

 Arabis, 164, 166 

 Arace-e, 74 

 Aragallus, 212 

 Arales, 74 

 Aralia, 249 

 Archcmora, 254 

 Arctostaphylos, 259 

 Arcnaria, 130, 132 

 Argcmonc, 148 

 Argentina, 186 

 Argythamnia, 222 

 Aristida, 23 

 Arnica, 387 

 Arrow-head, 14 

 Arrow-grass, 14 

 Arrow-grass Family, 14 

 Arrow-leaf {Balsamorrhiza) 

 Arrow-wood, 323 

 Artemisia, 382 

 Arum Family, 74 



ASCLEPIADACE^, 27O 

 ASCLEPIADALES, 269 



Asclepias, 270 



Asclepiodora, 271 



Ash, 264 



Ash, Mountain, 193 



Ash, Water, 221 



Ash-leaved Maple, 227 



Aspen, 91 



Asplenium, 4, 5 



Aster, 351 



Aster, 350, 351, 357 



AsTEREwE, 337 



Astragalus, 203-212 



Atelophragma, 205 



Athyrimn, 4 



Atragene, 141 



A triplex, 116 



Aulospermum, 253 



y4^'^«a, 34 



AvENEyE, 33 



Avens, 187 



Avens, Mountain, 188 



Bacharis, 366 

 Bahia, 2,77 

 Ball-cactus, 237 

 Balsam Apple, 325 

 Balsam Fir, 9 

 Balsamorrhiza, 372 

 Balsam-root, 372 

 Balsams, 9 

 Bane-berry, 135 

 Barbarea, 160 

 Barberry, 148 

 Barberry Family, 148 

 Barnyard-grass, 21 

 Barley, 55 

 Bartonia, 236 



Basil-weed, 209 

 Bastard Toad-flax, loi 

 Batrachium, 142 

 Bear-berry, 259 

 Beard-grass, 20, 30 

 Beard-tongue, 306 

 Beckmannia, 35 

 Bedstraw, 321 

 Beech Family, 97 

 Beech-Fern, 2 

 Beggar-ticks, 375 

 Bell-flower, 325 

 Bell-flower Family, 325 

 Bell-rue, 141 

 Belvisia, 5 

 Bent-grass, 30 

 Berberidace^, 148 

 Berberis, 148 

 Bergamot, Wild, 298 

 Berthelotia, 367 

 Bernla, 253 

 Besseya, 313 

 Betula, 96 



BETULACEiE, g6 



Bidens, 375 

 Bigelovia, 341, 343 

 Bilberry, 260 

 Bindweed, 273 

 Birch, 96 

 Birch Family, 96 

 Bird's-foot Trefoil, 202 

 Bistort, 112 

 Bistort a, 112 

 Bitter-cress, 163 

 Bitter-root, 126 

 Blackberry, 180 

 Black Grama, 20 

 Black Henbane, 303 

 Black-eyed Susan, 371 

 Black Pine, 8 

 Black Saltwort, 264 

 Bladder-Fern, 3 

 Bladder-pod, 154 

 Bladder-pod, Double, 154 

 Bladderwort, 319 

 Bladderwort Family, 319 

 Blanket-flower {Gaillardia) 

 Blazing Star, 336 

 Blepharineuron, 28 

 Blite, Sea, 119 

 Blite, Strawberry, 116 

 B lit tun, 116 

 Blowball, 409 

 Bluebell, 325 

 Blue-berry, 260 

 Blue Flag, 86 

 Blue-grass, 40 

 Blue-eyed Grass, 86 

 Blue-eyed Mary, 305 

 Blue Flag (Iris) 



