354 



PLANT-BREEDING 



P.ud sports, 232. 



Bulbs of hyacinths, 247. 



Burbank (Luther), De Vries and 

 Shull, 165 fig.; Experimental 

 garden of, 163 fig. ; Farm of, at 

 Santa Rosa, Cal., i6ifig.; Por- 

 trait of, 1 58 fig. ; Production of 

 horticultural novelties by, 159 

 ff. ; Methods of, 159. 



Burbank canna, 200; giant prune, 

 1 79 fig. ; plum, 170, 211; Shasta 

 daisies, 195 fig.; sugar prune, 

 181 fig. 



Butt summer wheat, 75 fig. 



Cactus, Giant, 349 fig. ; hybrid, 193 

 fig.; Spineless, 168, 192; Spine- 

 less edible, 193 fig., 226, 227 fig., 

 228, 229 fig. 



Calla aethiopica, 204; albo-macu- 

 lata, 207; Elliottiana, 206; "Fra- 

 grance," 204; Fragrant, 224; 

 hastata, 206; Nelsoni, 206, 232; 

 Pentlandi, 206; Rehmannii, 232; 

 Tiny, compared with normal 

 size, 205 fig. 



Campion, Smooth-leaved, 341 fig. 



Cannas, Burbank, flaccida, flower- 

 ing, and Tarrytown, 200. 



Capsules and general development, 

 Correlation of, 307. 



Carnegie grant, 162. 



Celandine, 251 fig. 



Centaurea Melitensis, 334. 



Cephalipterum Drummondii, 172. 



Cereals, Breeding of, 29 ff; Corn 

 differs from other, 120; Ele- 

 mentary species among, 105; Or- 

 igin of variability of, 84; Sports 

 of, at Svalof, 85; Svalof breed- 

 ing of, 48. 



Cereus giganteus, 349 fig. 



Chamomile, Wild, 334. 



Chance seedlings, 222. 



Characters and environment, 335; 

 in nature, Association of, 237; 

 Parallelism of apparently inde- 

 pendent, 296; Unit-, 1 6, 242, 

 309- 



Chelidonium majus, 251 fig. 



Cherry, Mahaleb, 223; and plum 

 hybrids, 218. 



Chestnut, Spineless, 234. 



Chevalier barley, 39 fig., 44, 269 



Chrysanthemum segetum, u, 13 

 fig-, 235. 



Classificators, 287. 



Clematis hybrid, 209. 



Close pollination of corn, 122. 



Clovers, Correlations in, 258; 

 Hastening of germination of, 

 262; Pitchers of, 293 fig.; 

 Types of, 282. 



Collections of selected plants, 288. 



Color, and form, Correlations be- 

 tween, 250; and taste, Correla- 

 tions between, 248; of hybrids 

 of Veronica longifolia, 247; of 

 thorn-apples, 246; -varieties and 

 seeds, 244. 



Columbine, Flowers of, 241 fig.; 

 hybrid, 209. 



Concordea pea, Svalof, 69 fig. 



Constancy of elementary species, 

 100 ; of minor variations, 118; 

 of species, 8. 



Cope on discontinuous evolution, 8. 



Corn, Barrenness in, 141, 145 fig. ; 

 breeding, 107 ff . ; Breeding 

 blocks of, 155 fig.; breeding, 

 History of, 130; breeding, Meth- 

 ods of, 133; Comparative trial 

 of progeny of, 137; Cross-polli- 

 nation of sweet, 1 23 fig. ; Dent. 

 1*4; Detasseling of, 140; differ? 

 from other cereals, 120; Equal- 

 ity of kernels in, 147; Flint, 

 114; for oil, Breeding, 108 fig.; 

 hybridizing, 125 fig. ; Individual 

 rows of, 135 fig. ; Inflorescence 

 of, 121 fig. ; Kernel of, 153 fig. ; 

 Methods of testing, 137; mon- 

 strosities, 1 13 fig., 1 15 fig., 117; 

 Pistillate flowers of, 119 fig. ; 

 Pod, 114; Pollen of, 122; Polli- 

 nation of, 12.2; Pollination of, 

 by hand, 126, 129 fig. ; Pop, 114; 

 Ramified cob of, 115 fig. ; Selec- 

 tion in, 134, 148; Soft, 116; 

 Staminate spikelet of, 119 fig.; 



