6o8 



INDEX. 



Clarke, Trevor, on Begonia hybrids, 200 ; 

 on cross-bred Cottons, 388. 



Clay luting for grafts, 68. 



Cleft-grafting, 76. 



Gleistogamous flowers, 144. 



Clematis Candida, 150. 



Clematis family, 506 ; grafting, stocks for, 

 86 ; Hendersoni, 127 ; hybrids and seed- 

 lings of, 510; hybrids of, &c., 164; 

 Jackmanii, long-kept pollen of, 150 ; 

 pollen of, 109 ; propagation of, 509 ; 

 when and how to root-graft, 584. 



Clerodendron, 560. 



Climate and fertilisation or impregnation, 

 133 ; and hybridism, 151. 



Olivias, 181. 



Cloves, little axillary, bulb-like buds, 49. 



Cockscombs, 172. 



Cocos nucifera, a precocious seedling of, 

 91. 



Codiseum, 304. 



Ccelebogyne ilicifolia, 100. 



Co/ea arabica, 237. 



Coffea, propagation of, 242. 



Coffee, 237. 



Coleus, 359 ; hybrids, list of, 360. 



Collodion for cuttings, 52. 



Colour and hybridism, 122, 214 ; and 

 hybridity, 540 ; changes induced in by 

 culture, 95 ; change of cross-fertilised 

 Peas, 106; De Candolle on primary, 

 119 ; of flowers and insects, 88. 



Columbines, 508. 



Colza, hybrid nature of, 211. 



Commelynaceae, 245. 



Composite, 245. 



Coniferse, 257. 



Conifer seeds, germination of, 260 ; whence 

 imported, 25. 



Conifer sports, 266 ; grafting, 262 ; in- 

 crease of, from cuttings, 588 ; manage- 

 ment of seedling, 261 ; naked' seeds 

 of, 114; seedling, 257; stocks for, 263, 

 264. 



Consanguinity, Galton on, 98 ; or relation- 

 ship, 57 



Convolvulacese, 267. 



Coral-tree hybrids, 433. 



Cornacese, 268. 



Corn-plants, 339. 



Correa, seedlings of, &c., 522. 



Corylacete, 270. 



Cotoneaster, stocks for, &c., 468. 



Cotton family, 385. 



Cowslip, American, 450. 



Cranberry family, 559. 



Crane's-bill family, 318. 



Crassulacese, 272. 



Crassula, stock for, 86. 



Cratsegus (Hawthorn), 468. 



Crinum, mixed seeds of a, 128 ; hybrids 

 of, 173 ; species and hybrids of, 176. 



Crocus, 348. 



Cross-bred plants, increased fertility of, 

 102. 



Cross-breeding, 6 ; artificial, 148 ; general 

 remarks on, 87 ; instructions for, 149 ; 

 natural, 137 ; propensities of Cabbage, 

 211 ; proportionate results of, 94. 



Cross - fertilisation and fertility, 100 ; 

 arrangements in flowers for, 141 ; 

 natural, 89. 



Crossing with long stamens, 163 ; with 

 short stamens, 160, 162. 



Croton, 304. 



Croucher on propagating Cacti, 218. 



Crown-grafting, 75. 



Cucumber, a Melon-bearing, 103 ; family, 

 276. 



Cucurbitacea?-, 276 ; variation in some 

 species of, 6. 



Cultivation, changes induced by, 10. 



Cultural variability, 95. 



Culture and variability, 95 ; as a disturb- 

 ing cause in plant-life, 96. 



Cupressus, fertilisation of, 257. 



Currant family, 343. 



Currants, stocks tor, 345. 



Cuscuta, germination of, 31. 



Cutting and storing grafts, 70. 



Cuttings, 47 ; bottom-heat for, 53 ; collo- 

 dion for, 52 ; definition of, 49 ; grafted, 

 85 ; hard and soft wooded, 53 ; herba- 

 ceous, 55 ; how and when to prepare, 

 50 ; in water-bottles, 53 ; leaf, stem, and 

 root, 51 ; moisture for, 50, 52 ; of a 

 Kose, variations in, 99 ; of Cycas revol- 

 uta, 53 ; of leaves, starch in, 588 ; pack- 

 ing materials for, 41 ; parts of plants 

 suitable for, 51 ; propagation by, 47 ; 

 sand and water for, 53 ; sawdust for, 

 53 ; soils for, 53 ; rooting media for, 

 55 ; tabular view of, 51 ; tender, packing 

 in hot countries, 41 ; Thomson's Styptic 

 for, 52. 



Cycad family, 279. 



Cycas revoluta, cuttings and offsets of, 53. 



Cyclamen, 449. 



Cyclamen Atkinsi, 449. 



Cyclamen persicum, 449 ; seed growth of, 

 31. 



Cydonia (Quince), 469. 



Cyperacese, 280. 



Cypripedium Harrisianum (C. barbato- 

 villosum), 93 ; hybrids of, 423, 424 ; 

 longifolio-Schlimii, 154 ; Sedeni, 154 ; 

 Sedeni (C. Schlimii-longifolia), 93 ; hy- 

 brid, seedling, &c., 422. 



Cyrtanthera, 168. 



Cytissus, grafting of stocks for, &c., 432 ; 

 hybrids of, 432. 



DAFFODILS, cross-bred, 182; hybrid, 121. 

 Dahlia hybrids, desirable, 253; thinning 



flowers of, for seed, 590; cuttings of, 



587; grafting, 86, 251; increase of, 251; 



introduction of, 250 ; proportion of good 



seedlings of, 94. 

 Dalechampia, 304. 



Daphne, seedlings of, grafting, &c., 556. 

 Daphnes, grafting, &c., 584; hybrid, 



557- 



Darlingtonia, 526. 



Darwin on cross-fertilisation, 87; on di- 

 morphism, &c., 117; on Potato-grafting, 

 548; on self -fertilised Bee-orchis, 144; 

 on the Oxlip, 7 ; on the direct action of 

 foreign pollen, 104. 



Date-Plum family, 282. 



Date-Plums (Diospyrus), stocks for, 590. 



Datura, 539; Naudin on hybrid, 155. 



Daucus (Carrot), 558. 



Dead Nettle family, 358. 



Decaisne on cultural variability, 95. 



