788 



BOTANY 



Kandelia, 674 ; seedling, *588 



Karyokinesis, 21 



Kickxia, 689 



Kidney Bean, Phaseolus 



Kidney-Vetch, Anthyllis 



Kieselguhr, 392 



Klinostat, 340, 350 



Knautia, 707 



Knight's experiments, 339 



Krameria, *668, 670 



Labiatae, 694 



Laboulbeniaceae, 438, 450 



Laburnum, *668, *671, 673 



Laburnum Adami, 299, *300 



Laburnum, Laburnum vulgare 



Lachnea, 438, *445 



Lactaria, 466, 467 



Lactuca, 716 



Ladies' Slipper, Cypripedium 



Laelia, 749 



Lagenostoma, *535, 536 



Lamarckism, 210 



Lamina, 108 



Laminaria, 409, *410, *415, 416, 418 



Laminariaceae, 409, 416 



Lamium, *694, 695 



Landolphia, 689 



Lappa, *712, 713 



Larch, Larix europaea 



Larix, *600 



Late wood, 153 



Lateral branches, direction and intensity 



of growth of the, 125 

 Lateral branching, 120 ; types of, 125 

 Lateral buds, position of the leaves of, 



122 



Lateral root, origin of, *138 

 Latex, 68, 268 

 Lathraea, 704 

 Lathyrus, 672 

 Laticiferous cells, *68 

 Laticiferous tubes, 69 

 Laticiferous vessels, 69 

 Laudatea, 474 

 Laurel, Laurus nobilis 

 Laurus, 638, *641 

 Lavandula, *695, 696 

 Leaf arrangements, 88 ; alternate, 88 ; 



main series of, 91 ; verticillate, 88 

 Leaf axil, 120 

 Leaf-base, 108, 115 

 Leaf-blade, 108 ; external form, 109 ; 



functions of, 114 

 Leaf-cushions, 115 

 Leaf mosaic, 115 

 Leaf, pitchered, *187 

 Leaf-gfears, 119 

 Leaf-sheath, 108, *116 

 Leaf-stalk, 108, 115 

 Leaf-thorns, 172 



Leaves, bracteal, 117 ; deciduous, 119 ; 

 development of, 106 ; different forms 

 of, 108 ; duration of life of, 118 ; 

 evergreen, 119 ; foliage, 108 ; internal 

 structure, 111 ; median plane of, 121 ; 

 scale, 117 ; transverse section of, 

 *113 ; venation of, 110 



Lecanora, 474 



Lecithins, 258, 266 



Ledum, 685 



Legume, 583 



Leguminosae, 664 ; root-tubercles, 260 



Lemon, Citrus limnnum 



Lens, 672 



Lentibulariaceae, 704 



Lenticels, *59 



Lentil, Lens 



Leocarpus, *383 



Leontodon, flower-head, *357 



Leontopoditim, 716 



Lepidium, *643 



Lepidocarpon, 533 



Lepidodendraceae, 503, 533 



Lepidodendron, *532, 533 



Lepidostrobtis, *533 



Lepiota, 466 



Leptome, 68 



Leptosporangiatae, 505; antheridia, 510; 

 archegonia, 510 



Leptothrix, 371 



Lessonia, 410 



Lettuce, Lactuca sativa 



Leucin, 258 



Leucobryum, 492 



Leucqjum, 726, *728 



Leuconostoc, 373 



Leucoplasts, 19, *20, 32, *33 



Levisticum, 682 



Lianes, 182 



Lichen acids, 469 



Lichenes, 469 



Lichens, LicJienes 



Licmophora, *388 



Life, active, 220 ; conditions of, 218 ; 

 duration of, 309 ; essential phenomena 

 of, 215 ; latent, 220 



Light, adaptations for obtaining, 181 ; 

 effect on development, 289 ; produc- 

 tion of, 276 



Lignification, 38, 39 



Ligulatae, 530 



Ligule, *116 



Ligustrum, 687 



Liliaceae, 724 



Liliiflorae, 721 



Lilium, 725 ; diagram of, *551 ; embryo- 

 sac, 572 ; fertilisation of, *575 ; 

 pollen-grain of, *570 



Lilium martagon, germination of, *180 



Lime, Tilia 



Limnanthemum, 689 



