INDEX 



455 



Bidens, 327, 330 



biennials, 130 



Bignonia, 354 



bilateral symmetry, 286 



birch, 179, 1 80 



bisexual flowers, 281 



blackberry, 332 



black rust, 388 



blade, 53 



bloodroot, 156, 194 



bloom, 212 



blue algae, 371 



bluebells, 259 



bluets, 319 



bole, 146 



bone dust, 103 



Botrychium, 423, 424 



box elder, 166, 284, 286 



bracket fungi, 383, 385 



bract, 298 



branches, 185 et seq. 



bread, 345 



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, 395 et seq., 414, 439 



buckwheat, 172, 306 



bud, 54, 185 et seq. 



accessory, 186, 188 



adventitious, 186, 188 



axillary, 186 



dormant, 189 



flower, 1 86 



leaf, 186 



mixed, 186 



naked, 188 



scaly, 1 88 



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 

 Castalia 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 

 Ceratophyllum, 228 

 chemistry, 117 

 Chenopodium, 44 

 cherry, 300 

 Chinese lily, 57 

 Chinese primrose, 320 

 chlorenchyma, 237 

 Chlorophycex, 371 

 chlorophyll, 74, 349 

 chloroplast, 73, 74, 231, 371 

 chokeberry, 262 

 cholera, 376 

 chrysanthemum, 270 

 cilia, 366 

 Cineraria, 211 

 cladophyll, 155 



