INDEX 



8i; 



Growth, energy of, 242. 



grand period of, 242. 



movements, 247-257. 



Guard-cells of stoma, 147 (Fig. 74), 194. 

 Guelder-roses, 61. 

 Gymnosperms, 324. 

 Gynascium, 79,81, 85. 



Hairs, 115 (Fig. 54). 



root, 32. 



Hair Grasses, 537 (Fig. 177), 668, 676. 



Halophytes, 176. 



Hardcastle wheat, 524. 



Hard fescue, 544, 674 (Fig. 224). 



Hard head, 608. 



Hard seeds, 644. 



Hard wheat, 519 (Fig. 168). 



Hariff, 593. 



Hassock grass, 537, 



Hastate, 70. 



Haustoria, 684. 



Hawkbit, 609. 



Hawthorn, 66, 103, 263, 407. 



Hazel, 41, 63, 73, 87, 90, 96. 



Healing of wounds, 131. 



Heart cherry, 67, 264 , 400. 



Heart-wood, 127, 199. 



Heat, influence of, 185, 196, 213, 227 



243, 451, 774. 

 Heath, 225. 

 Hedgehog wheat, 521. 

 Hedge parsley, 102. 

 Heel, 261. 

 Heliantkemum, 93. 

 Helianthus, 470. 

 Heliotropism, 253, 

 Hellebore, 280. 

 Hemiasci, 688. 

 Hemibasidii, 688, 715, 716. 

 Hemibasidium, 716. 

 Hemicellulose, 160, 224, 229, 

 Hemicyclic, 80. 

 Hemlock, 92, 167, 454. 

 Hemp, 332, 348. 

 Henbane, 469. 

 Henham's Jones hop, 341. 

 Hermaphrodite, 87. 

 Hetercecious, 726. 

 Heterozygote, 294. 

 Higher fungi, 688. 

 Hilum, 8, 156. 



Himalayan barley, 503 (Fig. 160). 

 Hip, 404. 



Hoary white wheat, 526. 

 Holms, 535, 552. 

 Hollow-crown parsnip, 453. 



Holly, 128, 305. 



Hollyhock, 89, 738. 



Homogamous, 281. 



Homozygote, 294. 



Honey-gland, 282. 



Honey-suckle, 62, 248, 282, 



Hop, 4, 29, 83, 87,102,115, 248, 268, 281. 



common hop, 332 (Figs. 103-108). 



Japanese hop, 332, 



varieties of, 339. 



Hop-clover, 428. 

 Hop, mildew, 749. 



mould, 749 (Figs. 254, 255). 



oil, 346. 



tannin, 347. 



trefoil, 428, 429. 



Hopetoun oat, 497. 



wheat, 526. 



Hordeum, 501, 547, 552. 



Hornbeam, 63, 128, 136, 225, 



Horse beans, 416, 417. 



Horse chestnut, 62, 71, 



Horse-tail, 603, 613. 



Host, 684. 



Humulus, 332. 



Humus, 208, 225. 



Hungarian forage-grass, 545. 



Hunter's white wheat, 524 (Fig. 169). 



Hurt-sickle, 595. 



Hyacinth, 69, 8^, 91, 268, 328. 



Hybrid, 285, 287. 



Hybrid clover, 425. 



Hybridisation, 285, 287. 



Hydrogen, 171, 783. 



Hydrolysis, 230. 



Hydrotropism, 257. 



Hymenium, 743 (Fig. 252). 



Hyoscyamus, 469. 



Hypertrophied tissues, 686. 



Hypha, 677 (Fig. 229). 



Hypochceris, 609. 



Hypocotyl, 10 (Fig. 5). 



Hypogean cotyledons, 18. 



Hypogynous, 81 (Fig. 35). 



Hypophysis, 276 (Fig. 100). 



Ice, in plants, 244. 

 Imbricated bulb, 60. 

 ImpatienSf loi. 

 Imperfect flower, 87. 

 Imperial barley, 506. 

 Incomplete flower, 81. 

 Increase in thickness of cell-wall, 109, 

 no. 



of root, 142. 



of stem, 122. 



F 



