INDEX 



455 



Bidens, 327, 330 

 biennials, 139 

 Bignonia, 354 

 bilateral symmetry, 286 

 birch, i7g, 180 

 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 

 Bolrychium, 423, 424 

 box elder, 166, 284, 286 

 bracket fungi, 383, 385 

 bract, 298 

 branches, 185 el seq. 

 bread, 345 



bread mold, 380, 384, 387, 390 

 breathing, 226, 231 

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

 brown alga?, 371 

 brown-eyed Susan, 62, 302 

 bryophytes, 361, 395 el seq., 414, 439 

 buckwheat, 172, 306 

 bud, 54, 185 el 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 



Callha palustris, 258 



calyx, 59, 271 



cambium, 129, 163, r68 



cambium ring, 169 



cane sugar, 52 



canna, 161 



caoutchouc, 194 



caprifig, 3r7, 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 el seq. 

 carpel, 274, 424, 442 

 carrion flower, 312 

 carrot, 125, 140 

 carrot, wild, 295, 300 

 Caslalia odorala, 287 

 castor bean, 72, 140, 346 

 catalpa, 334 

 catkin, 264, 299 

 cat-tail, 281, 282 

 cauliflower, 52 

 cedar, 431 

 celery, 52, 82 



cells, 72 el seq., 173 el seq., 234 el seq. 

 cellulose, 10s, 346, 347 

 Ceralophyllum, 228 

 chemistry, 117 

 Chenopodium, 44 

 cherry, 300 

 Chinese lily, 57 

 Chinese primrose, 320 

 chlorenchyma, 237 

 Chlorophycea, 371 

 chlorophyll, 74, 349 

 chloroplast, 73, 74, 231, 371 

 chokeberry, 262 

 cholera, 376 

 chrysanthemum, 270 

 cilia, 366 

 Cineraria, 211 

 cladophyll, 155 



