INDEX 



625 



Brachychiton diversifolium, 523 

 Bracken fern, 149, 155 

 Bracts, petalody of, 462 

 Brake, 149, 155 

 Branches, sterile and fertile, 196 



archegonial, 197 



innovation, 199 

 Brassica alba, 132, 133 



nigra, 464 



oleracea, 530, 569 

 Breathing, respiration versus, 107 

 Breeding of resistant varieties, 313 

 Bromeliads, 327 

 Brood-buds, 216 

 Broom-rape family, 338 

 Brown, Robert, 16 

 Brussels sprouts, 464 

 Bryales, 193 

 Bryophyllum, 347 



crenatum, 349 

 Bryophytes, 366 

 Bryopteris filicina, 217 

 Budding, 98 

 Bud-scales, 30 

 Bulbils, 163 

 Bundles, fibro-vascular, 36, 61 



structure of, 65, 66 

 Burdock, 116, 486 

 Burroughs, John, 434 

 Butter, June, 316 



Butter-and-eggs, 481, 482, 483-485 

 Buttercup, 462 



Cabbage, 464 

 Caesalpinioideae, 468 

 Calamites, 368, 388, 612 

 Calamus, 495 

 Calla-lily, soft rot of, 309 

 Calla palustris, 136 

 Calorimeter, 106 

 40 



Calyptra, 200 

 Cambium, 67 



interfascicular, 67 

 Camptosorus rhizophyllus, 162, 164 

 Canada thistle, 486 

 Cancer-root, 338 

 Cannel coal, 426 

 Capsicum, 481 

 Carbohydrates, 71 



seat of elaboration of, 72 

 Carbon cycle, no, iii 

 Carica Papaya, 358 

 Carpels, 436, 461 

 Carya ovata, 336 

 Caryopsis, 493 

 Cassia marilandica, 467, 468 

 Castanea dentata, 294, 296 

 Castor-oil seed. 123 



plant, 63, 66 

 Catnip, 479 



Cat-tails, 490, 491, 492 

 Cattleya, 329, 500, 501 

 Cecropia, 325 

 Cell, 15, 16, 17, 18 

 Cell-division and reproduction, 344 

 Cell-sap, 17 

 Cell-theory, 15, 20 

 Celtis occidentalis, 292 

 Ceratozamia, 333, 411 

 Cercis, 468 

 Chaff, 495 



Character-units versus unit-char- 

 acters, 558 

 Characters, inheritance of acquired, 



506-509, 565 

 Cheese, 316 



Cherries, black knot of, 295 

 Chestnut, 294 



American, 296 



bark disease, 295 



blight, 294 

 Chicory, 486, 487 



