1058 



Hymenophyllum — continued 



— gametophyte, 518 



— sorus and sporangia, 517 

 Hymenopliyl/inn twibridgeme, 513 



— umlalerale {zcilsoni), 513 

 Hypericum perforatum, 1028 

 Hyphae, 187 



Hyphaene thehoica, 838 



Hypocotyl, 590 



Hypocreales, 281 



Hypodermis, 457, 665, 672, 869 



Hypoxylon ; asexual reproduction, 287 



— relationships, 289 



— sexual reproduction, 287 

 Hypoxylon coccineum, 286 

 Hypsophylls, 988, 990 



Iceland Moss, 377 

 Idioblasts, 476 

 Ilex, 931, 1034 



— aquifolium, 958 

 Imparipinnate leaves, 950 

 Impatieus, 856 

 Indusium, 489 



Initial cells, 794 



— meristem, 848 

 Inocybe maritnna, 640 

 Integuments, 640 

 Intercalary growth, 598, 842 

 Interfascicular cambium, 855, 863, 865 

 Internodes, 836, 861 



Interphase nucleus, 19 



Intine, 675, 722 



Intravaginal scales, 989, 993 



Intussusception, growth by, 3, 13 



Inverted bundles, 921 



Iodine, 129 



Iriartea exorhiza, 824 



Iridaceae, 814, 985 



Iris, 973 



— germanica, 459, 793. 933. 936 



— pallida, 1014 



— ivartani, 1022 

 Isidia, 367, 572 

 Isobilateral structure, 1019 

 Isoelectric point, 892 

 Isoetales, 592 



Isoetes ; anatomy of root, 597 

 of stem, 593 



— development of embr>'o, 604 



of megasporangium, 600 



of microsporangium, 601 



— female gametophyte, 603 



— male gametophyte, 602 



— relationships, 606 

 Isoetes hystrix, 595 



— lacustris, 592 

 Isogametes, 51 

 Isogamous gametes, 59 

 Ivy, 819, 822 



Jack Fruit, 962 

 Jacket layer, 684, 727 

 Jeffrey, 910 



Jerusalem Artichoke, 937 

 Juglans nigra, 468, 476 



— regia, 909 

 Juncaceae, 880 



INDEX 



jfuucus, 947, 1019 

 — ejfusiis, 455 

 Jungermanniales, 390 

 Jioiiperus, 659 

 Jussieiia, 819 

 Jute, 895 



Karyogamy, 192 



Karyokinesis, 19 



Karyolymph, 10, 18 



Karyosome, 197 



Kidston and Gwynne Vaughan, 532 



Kieselguhr, 146 



Kinetochore, 20 



Kingdom, Plant, 38 



Kinoplasm, 15 



Koch, Robert, 352 



Kubart, 678 



Labiatae, 871, 984 

 Labium, 600 

 Laboulbeniales, 290 



— relationships, 294 



Labour, physiological division of, 4 



Laburnum anagyroides, 898 



Lactuca scariola, 969 



Lacunae, 598 



Lacunar mesophyll, 1000 



— tissue, 10 1 9 

 Lamina, 950, 978 

 Laminaria, 128, 186 



— alternation of generations, 134 



— asexual reproduction, 132 



— gametophytes, 133 



— structure of thallus, 130 

 Laminaria used as food, 129 



— digitata, 128, 130, 131, 132, i33, 



— hyperborea, 129, 130 



— saccharina, 128, 129, 132, 135, 184 

 Laminariales, 128 



Lanate surface, 1005 

 Lapsana, 952 

 Larch, 657 

 Larix, 659 

 Latex, 474 

 Lathraea, 1043 



— sqtiamaria, 820 

 Lathyrus aphaca, 1037, 1042 

 Laurus, 875 



— nobilis, 1026 

 Laurencia pinnatifida, 184 

 Lavandula vera, 469 



Law of irreversibility, 924 

 Leaf anatomy, 1003 



— axil, 838 ■ 



— differentiation, 973 



— divergence, 986 



— duration, 972 



— fall, 1033 



— folding, 969 



— form, 949 



modifications, 1034 



— gaps, 480, 483, 500 



— mosaic, 966 



— rudiment, 852 



— scar, 1034 



184 



