612 



INDEX. 



Sweet's Cistinece such as C. corbar- 

 iensis, Cyprius, purpures, &c. 

 were thus reproduced.) 



Hydrangea family, 346. 



Hymenocallis, embryo of, 130. 



Hymenoptera, pollen-carrying, 143. 



ILEX, graft variegation in, 62. 



Imantophyllum cyrtanthiflorum, 97. 



Imantophyllums, 181. 



Impatiens f ulva, 1 46 ; Noli - me - tangere, 

 146; parviflora, 146; self-fertilised kinds 

 of, 146. 



Impregnation or fertilisation, 116; and 

 climate, 133; artificial modes of, 134; 

 partial or imperfect, 129; time requisite 

 for, 128 ; means of, 10. 



Inarching ; or splice-grafting "by approach," 

 83 ; fruit-clusters of Grapes, 572. 

 (In this form of grafting, two branches 

 on the same plant, or on different 

 plants, are spliced together, neither 

 being severed until a union is 

 effected.) 



Increased vigour, 89. 



India-rubber tree, stock for, 582. 



Insects and colour of flowers, 88 ; and 

 valuation in plant form, 126 ; fertilisa- 

 tion, 139 ; and pollen, 106 ; and Stapelias, 

 196 ; and the colours of flowers, 88 ; 

 pollen-eating, 143. 



Introduction, i. 



Ipecacuanha, propagation of, 240. 



Ipomcea Horsfallia:, stock for, 86; Hors- 

 fallice, stocks for, 267 ; root-grafting of, 

 582 ; paniculata as a stock, 86. 



Iresine, 172. 



Iris, 353. 



Iris family, 346. 



Ivies, 194. 



(Cuttings should be inserted in Septem- 

 ber on a sheltered border, where 

 they will root freely.) 



Ivies, how and when to graft, 581. 



Ivy family, 193. 



Ixora, propagation of, 244. 



JAFFRAY on propagating Ipecacuanha, 



241. 



Jasmine, Cape or Gardenia, 243. 

 Jasminum, variegation in, 61. 

 Jatropha urens, pollen of, 109. 

 Juglandacese, 356. 

 Juncaginaceae, 358. 



Juncus bufonius, pollen-tubes of, 146. 

 Jussieu on the pollen of Malpighiacese, 147. 

 Justicia, 168. 



KAKI fruit, the, 283; fruits, stocks for, 

 ,390- 



Kalendar, seed-sowing, 595. 



Kalmia, 292. 



Kerner on hybrid Primroses, 452 ; on pol- 

 len, 106 ; on the origin of the Auricula, 

 453- 



Keynes on Dahlias seeding, 253. 



Kitchen-garden seeds, when to sow, 595. 



Knaur or " uovoli " propagation, 49, 50. 



Knight on direct pollen influence, 105; 

 on fruit-tree stocks, 72; on grafting 

 blossom or fruit buds, 67 ; on the varia- 

 bility of grafted fruits, 63. 



Koch on hybrid Arads, 190; on hybrids, 



8. 



Kcelreuter on cultural variability, 96. 

 Kumquat, grafting of, 197. 



LABIATES, 358. 



Laburnum, variegation in, 61. 



Lactuea, 255. 



Lagenaria, hybrids of, 278. 



Lagerstrcemeria, 384. 



Lapageria family, 442. 



Larch, seed-sowing of, 584, 586. 



Larkspurs, 515. 



Latent characters, 98. 



Lauraceae, 361. 



Laurel family, 361. 



Layering, hillock, 46 ; how performed, 44 ; 

 multiple or compound, 46. 



Layers, 44 ; propagation by, 44 ; Pink and 

 Carnation, 234. 



Leadworts, 444. 



Leaf-cuttings, 47, 580 ; grafting, 67 ; graft- 

 ing succulent plants, 86. 



Lecoq on Auriculas, 455 ; on hybrid Mira- 

 bilis,402; on preserving pollen, no. 



Lemons for stocks, seed-sowing of, 595. 



Lentibulariacese, 361. 



Lettuce hybrids, 255. 



Libonia, 168; hybrids of, 169. 



Lilac, 406. 



Liliaceae, 362. 



Lilies, 369; fertilisation of, in; Knight's 

 Star or Amaryllis, 173; pollen of, no. 



Lilium, 369; bulbiferum, fruit of, 102; 

 davuricum, fruit of, 102; hybrid of, 372. 

 (L. testaceum (see ' Paxt. Mag. Bot.,' 1843, 

 p. 221) is a handsome plant, bearing 

 butt-tinted flowers. It was always 

 supposed to be of hybrid origin, 

 and Mr Barr informs me that Col. 

 Trevor Clarke has reproduced it by 

 crossing its parents, L. candidum 

 and L. chalcedonicum. See also 

 ' Flore des Serres,' vol. i., for a full 

 account of this distinct plant.) 



Lilium pollen-keeping properties of, 150. 



Lily family, 362; fruits, direct action of 

 pollen on, 103 ; Water, 403. 



Limonia trifoliate, as a stock for Citrus 

 Japonica, 590. 



Linaceae, 377. 



Linaria family, 528 ; hybrids of, 532. 



Lindley on adventitious buds, 49; on Digi- 

 talis, 532; on hybridism, 92, 94; on 

 hybridising Clematis, 513; on sexual 

 prepotence, 170; on supertcetation, 120; 

 on the influence of different soils on 

 fruit-trees and stocks, 71 ; on the vitality 

 of seeds, 36. 



Linnaeus on hybrid Salsify, 256; on pollen 

 of Jatropha, 109; on Violas, 145. 



Linum, 377. 



Liriodendron, 390. 



Livingstone on pollen influence in Melons, 

 104. 



Lobelia, 379; hybrids of, 380. 



Lobeliaceae, 378. 



Lonicera, hybrid or seedling, 230; sorts 

 of, 229. 



Loosestrife family, 384. 



Loquat, propagation of, 475 ; stocks for, 

 86. 



