534 



PRACTICAL BOTANY 



Basidiomycetes, 226, «240-256 



Bast, hard, 47* 



Bast, soft (sieve tubes), 80 



Batrachospermum, 209* 



Bean seed, 22*, 136* 



Bean seeds and pod, developinent of, 



22* 

 Beech, one-sided pruning of, 42* 

 Beech seedlings, 23* 

 Bees, 123 



Begonia, flowers of, 108* 

 Begonia, leaf mosaic of, 59* 

 Berries, 460, 461 

 Biennial, 33, 34 

 Big tree, 304*, 811*, 313* 

 Bilaterally symmetrical flowers, 108, 



109* 

 Birch, flowers and flower clusters of, 



351* 

 Bird pollination, 130 

 Bisexual, 131 

 Black knot, 234 

 Black walnut, buds of, 90* 

 Blackberry, 430, 461 

 Bladderwort, 481* 

 Blade of leaf, 10*, 13*, *55-71 

 Bleeding, 9 

 Blueberry, 364 

 Blue-green algs, »180-187 

 Blue-green algee, classification of, 



187 

 Bluets, flowers of, 133* 

 Bordeaux mixture, 222. SeeSpraying 

 Botany, economic, definition of, 159 

 Botany, systematic, definition, of, 



159 

 Botrychium, 288*, 290 

 Box elder, buds of, 93* 

 Bract, 515* 



Branches, origin of, 52*, 53* 

 Branching and leaf arrangement, 56 

 Breeding, plant, *412-433 

 Brown algiB, *206-209 

 Brown rot, 227, 228 

 Bryophytes, 158, 257, 273 

 Bryophytes, classification of, 273 

 Bryophytes, evolution of plants, 330, 



334 

 Bryophytes, summary of, 272, 273 

 Buckeye, bud of, 91* 

 Buckwheat, flower of, 106*, 124* 

 Budding, 87*, 88 

 Buds, *90-102 

 Buds, adventitious, 92 

 Buds, naked, 90 



Buds, opening of, 99, 100 



Buds, position of, 92 



Buds, structure of, 91*, 95*, 96* 



Bud-scale scar, 92*, 98*, 100*, 102* 



Bud-scales, 90, 91*, 95*, 96* 



Bulb, 73, 74*, 83 



Bundles, fibrovascular, 11*, 12 



Burbank, Luther, 430 



Burs, 146*, 154* 



Cacao, 359, 360 



Cactus, 81*, 482 



Calcium, 448 



Calyx, 20*, 104* 



Cambium, 45», 304 



Cambium layer, 45*, 46 



Camembert cheese, 231 



Camphor tree, 362* 



Cancer root, 383* 



Canna, leaf of, 336* 



Canning, 169 



Capsule, 153* 



Caraway, flower and fruit of, 359* 



Carbohydrates, 16 



Carbon, 16 



Carbon dioxide, 15, 16, 19 



Carbon dioxide, absorption of, 15-17 



Carboniferous Period, 296 



Carnation rust, 245 



Carnivorous plants, 381, *385-388 



Carpel, 105*, 111 



Carrot fruit, 359* 



Cascade Range, 511 



Cassava, 356, 357 



Cassia, flower of, 353* 



Casuarina, 484* 



Catalpa, hardy, 405* 



Catkin, 106*, 107*, 516* 



Cattleya, 31* 



Cedar, 312*, 313 



Cedar apples, 246*, 247* 



Cell, 8* 



Cell turgor, 9, 10 



Cell wall, 8* 



Central cylinder, 24* 



Central placenta, 112* 



Century plant, 75, 76*, 77*, 482 



Century plant, section of leaf of, 



483* 

 Cereals, 330, 340*, 455-458 

 Cetraria, 239 

 Channels for carrying plant food, 



80, 81 

 Chaparral, 512 

 Chara, 204, 205, 207* 



