INDEX 



455 



Bidens, 327, 330 



biennials, 139 



Bignonia, 354 



bilateral symmetry, 286 



birch, 179, 180 



bisexual flowers, 281 



blackberry, 332 



black rust, 388 



blade, 53 



bloodroot, 156, 194 



bloom, 212 



blue algae, 371 



bluebells, 2S9 



bluets, 319 



bole, 145 



bone dust, 103 



Botrychium, 423, 424 



box elder, 166, 284, 286 



bracket fungi, 383, 38s 



bract, 298 



branches, 185 et seq. 



bread, 34s 



bread mold, 380, 384, 387, 390 



breathing, 226, 231 



breeding, 15, 16, 220, 446 et seq. 



brown algae, 371 



brown-eyed Susan, 62, 302 



bryophytes, 361, 393 el seq., 414, 439 



buckwheat, 172, 306 



bud, S4, 18s et seq. 



accessory, 186, 188 



adventitious, 186, 188 



axillary, 186 



dormant, 189 



flower, 186 



leaf, 186 



mixed, 186 



naked, 188 



scaly, 188 



terminal, 186 



winter, 185 

 bulb, 48, 155, 159, 160 

 bumblebee, 310 

 Burbank, Luther, 447 

 burdock, 140, 356 

 bushes, 146 

 ' butter and eggs, 295 

 buttercup, 274, 292 

 buttercup family, 290 

 butterflies, 311 

 buttonbush, 301 

 buttons of mushrooms, 382 



cabbage, 52, -213 



cactus, 51, 193, 222 



calcium, 103, 349 



California poppy, 321 



Caltha palustris, 258 



calyx, 59, 271 



cambium, 129, 163, 168 



cambium ring, 169 



cane sugar, 52 



canna, 161 



caoutchouc, 194 



caprifig, 317, 318 



capsule, of seed plants, 330, 331 



of bryophytes, 401, 406, 409 

 carbohydrate, 229, 344 

 carbon, 94 



carbon dioxide, 85, 137, 226, 228 

 carbonic acid, 228 

 carnation, 270 



carnivorous plants, 252 et seq. 

 carpel, 274, 424, 442 

 carrion flower, 312 

 carrot, 125, 140 

 carrot, wild, 295, 300 

 CastaUa odorata, 287 

 castor bean, 72, 140, 346 

 catalpa, 354 

 catkin, 264, 299 

 cat-tail, 281, 282 

 cauliflower, 52 

 cedar, 431 

 celery, 52, 82 



cells, 72 et seq., 173 et seq., 234 et seq; 

 cellulose, 105, 346, 347 

 Ceratophyttum, 228 

 chemistry, 117 

 Chenopodium, 44 

 cherry, 306 

 Chinese lily, 57 

 Chinese primrose, 320 

 chlorenchyma, 237 

 Chlorophycece, 371 

 chlorophyll, 74, 349 

 chloroplast, 73, 74, 23I1 37i 

 chbkeberry, 262 

 cholera, 376 

 chrysanthemum, 270 

 cilia, 366 

 Cineraria, 211 

 cladophyll, 155 



