786 



BOTANY 



Ginkgo, 591, *592, 606 ; male cells, 562 ; 



pollen-grain, *562 ; ovule of, *563 

 Ginkgoaceae, 591 

 Ginkgoinae, 591 

 Girders, 93 

 Gladiolus, 730 

 Glandular cells, 70 

 Glandular epithelium, 70 

 Glandular hair, *70 

 Glandular scale, *70 

 Glandular tissue, 70 

 Glaucium, *642 

 Gleba, 468 

 Glechoma, 696 



Gleditschia, 670 ; stem-thorn of, *174 

 Gleicheniaceae, 509 

 Globoid, *31 

 Gloeocapsa, *40, 377 

 Glucosides, 29, 268 

 Glumiflorae, 730 

 Glycogen, 28 

 Glycyrrhiza, 672, 673 

 Gnaphalium, 716 

 Gnetaceae, 602 

 Gnetinae, 602 

 Gnetineae, microspores, 569 

 Gnetum, 602, *603 ; embryo-sac, *569 

 Gooseberry, Riles grossularia 

 Gossypium, *55, *648, 649 

 Graft hybrids, 299 

 Grafting, 297, *298 

 Gramineae, 732 

 Grand period of growth, 280 

 Grape Vine, Vitis vinifera 

 Graphis, 471 



Grass -haulm, geotropic erection of, *342 

 Grass-wrack, Zostera marina 

 Gratiola, *701, 703 

 Gravity, effect on development, 291 

 Grijfithia, 427 

 Grindelia, 718 



Ground-nut, Arachis hypogaea 

 Growing point, 84, 282, *307 

 Growth, 217, 278, 306 ; and cell division, 



306 ; distribution of, 280 ; grand 



period of, 280 ; measurement of, 278 ; 



phases of, 282 ; rate of, 279, 281 

 Growth in thickness, primary, 140, 286 ; 



secondary, 142 

 Gruinales, 651 . 



Guard cells, 52, 53 ; movements of, 231 

 Guiacum, 652 

 Gum-resins, 268 

 Gutta-percha, 268, 689 

 Guttiferae, 647 

 Gymnadenia, 746 

 Gymnodiniaceae, 386 

 Gymnospermae, 589 

 Gymnosperms, 542 ; flowers of, 544 ; 



secondary thickening of, 143 ; sexual 



generation, 561 ; wood of, 150 



Gymnosporangium, *457 

 Gynaeceum, 546, 547 

 Gynandrae, 745 

 Gynostemium, 745 

 Gyromitra, 447 



Haastia, 716 



Hadrome, 68 



Haemanthus, 726 



Haematococcus, 398, *399 



Haematoxylin, 158 



Haematoxylon, 158, 670 



Hagenia, 661, *662, 664 



Hairs, 54 ; scale, *56 ; stellate, *55 ; 



stinging, *57 

 Halasphaera, 397 

 Halimeda, 406 

 Halophytes, 169 

 Hamamelidaceae, 623 

 Hamamelidinae, 623 

 Hamamelis, 623 

 ffancornia, 689 

 Haplobacteria, 371, 372 

 Haplomitrieae, 489 

 Haplomitrium, *489 

 Haptotropisin, 353 

 Hart's-Tongue Fern, Scolopendrium 

 Harveyella, 427 

 Haustoria, *77, 191 



Hawthorn, Crataegus (Mespilus) oxycantha 

 Hay bacillus, Bacillus subtilis 

 Hazel, Gorylus avellana 

 Head, 127 

 Heart- wood, 158 

 Heat, production of, 276 

 Heather, Calluna vulgaris 

 ffedera, 678 

 Hedychium, 745 

 Helianthemum, *646, 647 

 ffelianthus, *713, 717 ; embryo-sac of, 



*575 



Helichrysum, 716 

 Heliotropism, 348 

 Ifelleborus, 636 ; foliage leaf, *119 

 Helobiae, 719 



Hemerocallis, anther of, *541 

 Hemicelluloses, 37 

 ffemidesmus, 690 

 Hemlock, Conium maculatum 

 Henbane, Hyoscyamus niger 

 Hepaticae, 475, 482, 483 

 Herbs, 141 ; annual, 180 ; perennial, 176 

 Hercogamy, 560 

 Heredity, 316 

 Heterocontae, 396 

 Heteroecious, 458 

 Heteromerous lichens, 470 

 Heterophylly, 116, 308 

 Heterostyly, 560 ; dimorphic, 560 ; tri- 



morphic, 560 

 Heterotrophic cormophytes, 188 



