360 



INTRODUCTION TO BOTANY 



Bisexual, 127* 



Black knot, 247 



Blackberry, 176 



Blackberry-raspberry hybrid, 188* 



Blade of leaf, 13, 69*, 70* 



Bleeding, 24 



Blue mold, 245* 



Blue-green algae, *219-221 



Bluets, flowers of, 153* 



Bordeaux mixture,'241. See Spraying 



Botany, economic, definition of, 197 



Botany, systematic, definition of, 197 



Box elder, buds of, 96* 



Brace roots, 30* 



Bracken fern, *271 



Branching, 96*, 97* 



Bread mold, *235-239 



Brown algae, 230, 231* 



Brown rot, 242*, 243 



Bryophytes, *262-269 



Bryophytes, classification of, 281 



Bryophytes, evolution of plants, 305 



Bud scales, 94*, 100*, 101 



Budding, 91* 



Buds, *94-105 



Buds, naked, 94 



Buds, opening of, 94*, 99*, 102 



Buds, position of, *95~97 



Buds, structure of, 94*, 99*, 100* 



Bud-scale scar, 100*, 102* 



Bulb, 87 



Buller, A. H. R., 257-260 



Bumblebee, pollen carrier, 150* 



Bundles, fibrovascular, 11*, 13, 62*, 



63, 67 



Bur cucumber, 75* 

 Burbank, Luther, 191 

 Burs, 169*, 171 

 Buttercup, 126* 

 Butterfly, head of, 146* 

 Butternut, buds of, 95* 



Cactus, 28, 81* 



Calyx, 14*, 125* 



Cambium layer, 62*, 63, 64, 66, 68, 69 



Camembert cheese, 245 



Canna, leaf of, 70* 



Canning, 206, 207 



Capsella, 303* 



Capsule of moss, *263 



Carbohydrates, 38, 343 



Carbon, 7, 38, 343 



Carbon dioxide, 7, 38, 343 



Carboniferous period, 280, 294 



Carnivorous plants, 53*, 54 



Carpel, 125, 126*, 130, 299 



Casuarina, 56* 



Catalpa, hardy, 114 



Catkin, 101* 



Cedar, 294 



Cedar apples, 254 



Cell, 20* 



Cell turgor, 22 



Cell wall, 21* 



Cell, work of, 21, 22 



Cellulose, 21 



Central cylinder, 11*, 20* 



Central placenta, 131* 



Century plant, 313 



Cereals, 314, 315 



Cetraria, 251 



Channels carrying plant food, 43 



Chara, 229*, 260 



Cherry, 317* 



Cherry, leaf of, 69* 



Cherry, wild black, fruits of, 170* 



Chinese agriculture, 48, 177 



Chlorophycese, 260 



Chlorophyll, 36, 37 



Chloroplast, 36* 



Choripetalous, 128 



Chorisepalous, 128 



Citrous fruits, 190 



Cladonia, 261 



Cladophora, 225, 226*, 227, 260 



Classification, 194*-198, 260, 261, 281, 



306 



Clay, 320 



Clayton's fern, 273* 

 Cleistogamous flowers, 141* 

 Climbing plants, 74*, 75* 

 Closed bundles, 68 

 Clover, nitrogen-fixing by, 39, *204- 



207 



Clover leaf, 77* 

 Clover seed, 336 

 Club moss, 279*, 280 

 Coal, 280 



Coal-forming periods. 280, 294 

 Cocklebur, 169* 

 Coffee, 58* 

 Collenchyma, 64* 

 Colors of flowers, 151, 152 

 Columella, 236* 



Coming true from the seed, 1 76 

 Comparison of great groups, 305, 306 

 Compass plants, 76 

 Competition, 169, 170 

 Compound pistil, 131* 

 Concord grape, 176 



