456 



INDEX 



classification of algae, 371 

 of fungi, 390 



clay, 99 



Claytonia, 161 



cleistogamy, 320 



climbing cucumber, 128, 153, 154 



closed bundles, 171 



close- pollination, 263, 319 et seq. 



clover, 150, 208, 248, 295, 310, 377, 393 



club mosses, 424 et seq. 



cluster cup, 389, 390 



coal, 2, 114, 414 



cocklebur, 63, 356 



coconut, 7, 13, 14, 326, 350, 356 



ccenocyte, 370, 300 



Coleus, 54 



colonial forms, 364 



colonies, 364 



color of flowers, 311 



companion cells, 176 



compass plants, 250 



Composite, 297, 298, 300, 327, 329, 354 



compound leaves, 187, 207, 416 



compounds, 92, 97 



conductive tissue, 176 



cone, 260, 431, 433, 434 



coneflower, 302 



Conifer CE, 431 



cork, 169 



cork cambium, 169 



cork oak, 170 



conn, 155, 160, 279 



corn, 16, 17, 46, 48, 50, 66, 67, 82, 83, 

 125, 126, 131, 134, 146, 171, 209, 

 220, 223, 282, 283, 296, 322, 341, 

 345, 348, 378, 445, 447 



corolla, 59, 271 



cortex, 79, 80, 128, 137, 163, 419 



cortical parenchyma, 164 



corymb, 300 



cotton, 64, 289, 346, 354 



cottonwood, 309 



cotyledons, 66, 183, 342, 353 



Coulter, J. M., 232, 439 



Cowles, H. C., 112, 175, 234, 311, 322 



crops, 15 et seq., 103 et seq., 377, 392 



crossing of species, 305 



cross-pollination, 263, 303 et seq. 



crown, of trees, 148 



Crucifera, 331 



cupule, 397, 398 



cutin, 136, 164, 215 



Cyanophycea, 371 



cylindrical arrangement, 165 et seq. 



cyme, 301, 303 



Cypripedium parviflorum, 266 



cytoplasm, 73, 74 



D 



dahlia, 49, 161 



daisy, 297 



dandelion, 64, 126, 139, 141, 147, 212, 



277, 292, 294, 303, 310, 327, 329, 



354 



Darwin, 64, 356 

 dates, 347 

 day-lily, 306 

 deciduous, 243 

 decomposition, 374 

 dehiscent fruits, 330 

 determinate inflorescence, 301 

 diastase, 351 

 Dicentra, 260 

 dichogamy, 299, 319 

 dichotomous venation, 417 

 diclinous, 281 



dicotyledons, 183, 204, 294, 343 

 differentiation, 75, 363, 366 

 diffusion, 92 

 digestion,. 42, 350 

 dimorphism, 319, 320 

 dioecious, 279, 284 

 diphtheria, 376 

 Dipterocarpece, 354 

 dissemination, 63, 327 

 dodder, 374 

 dogtooth violet, 261 

 dogwood, 246 

 dormant buds, 189 

 double fertilization, 444 

 Drosera, 254, 255 

 drupe, 331, 332 

 dry fruits, 333 

 duckweed, 280, 337 

 dutchman's breeches, 260 



early spring spore, 388, 389 

 economic importance of fungi, 374 

 edgewise position of leaves, 249 

 egg, 275, 367, 398, 399, 402, 444 

 elaters, 400, 401 

 electricity, 113 



