432 



INDEX. 



Aqidlegia, 136 

 ArabiSf 164, 166 

 Araceje, 74 

 Aragallus , 212 

 Arales, 74 

 Aralia, 249 

 Archemora, 254 

 Arctostaphylos, 259 

 Arenaria, 130, 132 

 Argemone, 148 

 Argentina, 186 

 Argythamniaj 222 

 ArisHda, 23 

 yirntca, 387 

 Arrow-head, 14 

 Arrow-grass, 14 

 Arrow-grass Family, 14 

 Arrow-leaf (Balsamorrhisa) 

 Arrow-wood, 323 

 Artemisia, 382 

 Arum Family, 74 



ASCLEPIADACE^, 270 

 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 



ASTEEEJE, 337 



Astragalus, 203-212 

 Atelophragma, 205 

 Athyrium, 4 

 Atragene, 141 

 Atriplex, 116 

 Aulospermum, 253 

 /4i/ejto, 34 

 AvENE^a:, 33 

 Avens, 187 

 Avens, Mountain, 188 



Bacharis, 366 

 Bahia, 377 

 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, 299 

 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 



BeRBERIDACEjE, 148 



Berberis, 148 

 Bergamot, Wild, 298 

 Berthelotia, 367 

 Berula, 253 

 Besseya, 313 

 Betula, 96 

 Betulace^s:, 96 

 Bidens, 375 

 Bigelovia, 341, 343 

 Bilberry, 260 

 Bindweed, 273 

 Birch, 96 

 Birch Family, 96 

 Bird's-foot Trefoil, 202 

 Bistort, 112 

 Bistorta, 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 {Caillardia) 



Blazing Star, 336 



Blepharineuron, 28 



Blite, Sea, 119 



Elite, Strawberry, 116 



Blitum, 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) 



