INDEX 



787 



Heterotrophic plants, 254 



Heterotype division, 205 



Heterozygotes, 317 



Hevea, 626 



Hexoses, 38 



Hibernacula, 194 



Hibiscus, 649 



Hieracium, *713, 716 ; apospory in, 



*579 



Hilum, 579 

 Hippocastanaceae, 657 

 Hipiiophae, 673 

 Hippuris, *87 

 Histology, 40 

 Holcus, 734 

 Holly, Ilex aqu (folium 

 Homoiomerous lichens, 470 

 Homotype division, 205 

 Homozygotes, 317 



Honeysuckle, Lonicera peridymenum 

 Hoodia, 690 

 Hop, Humid us lupulus 

 Hordeum, 733, 734, *735 ; apex of a 



root, *133 



Hornbeam, Carpinus Bet id us 

 Hornea, 501 



Horse-chestnut, Aescidus hippoca-stannm 

 Horse-tails, Equisetineae 

 Hoya, 690 

 Humulus, 618, *619 

 Hyacinthus, 725 

 Hyaloplasm, 15 

 Hybrids, 317 ; inheritance in, 319 ; in 



nature, 317 

 Hydathodes, 71, 168 

 Hydneae, 463 

 Hydnophytum, 704 

 Hydnum, *463 

 Hydrangea, 659 

 Hydrastis, *638 

 Hydrocharis, 194, 721 

 Hydrocharitaceae, 721 

 Hydrodictyon, 401 

 Hydrophilous plants, 553 

 Hydrophytes, 165 

 Hydropterideae, 502, 512 

 Hydrotaxis, 332 

 Hydrotropism, 352 

 Hydrurus, 379 

 Hygrophytes, 167 

 Hygroscopic movements, 333 

 Hymenogastreae, 468 

 Hymenolichenes, 474 

 Hymenomycetes, 461 ; clamp connections, 



461 



Hymenophyllaceae, 509, 510 

 Hyoscyamus, 697, 699, *701, 703; seed 



of, *581 ; stamen of, *547 

 Hypanthium, 550 

 Hypericum, 647 

 Hyphae, *77 



Hypholoma, basidium, *452 ; cell of, *16 



Hypnodinium, 387 



Hypochnus, 462 



Hypocoty], 565 



Hypogeal germination, 589 



Hypogynous flower, *549, 550 



Hypophysis, 575 



Iberis, 646 



Ilex, 655, *656 



Illicium, 632 



Imbibition, 223 ; mechanisms, 333 



Immunity, phenomena of, 295 



Indian Hemp, Canndbis sativa 



Indusium, 508 



Inflorescences, 125 ; diagrams of, *128 



Initial cells, 46, *80 



Initial layer, 144 



Inorganic material, oxidation of, 274 



Insectivorous plants, 185, 258 



Integuments, 539 



Intercellular spaces, 44, 246 ; lysigenous, 



45 ; schizogenous, 45 

 Intercellular system, 45 

 Interfascicular cambium, *144 

 Internal differentiation, 287 

 Interuodes, 88 

 Intine, 541 



Intramolecular respiration, 272 

 Introrse, 546 



Intussusception, growth by, 35 

 I aid a, 716 

 Inulin, 28, 265 

 Iodine, 240 

 Ipomoea, 693 

 Iridaceae, 726 

 Iris, *728, *729, 730 ; diagram of, *551 ; 



seedlings, *588 

 Irritability, 215 

 Isatis, 644, 646 

 Isoetaceae, 502, 530 

 Isoetes, 523, 530, *531 

 Isogamy, 198, 369 

 Isosmotic solutions, 224 

 Ithyphallus, *468 

 Ivy, Hedera Helix, 



Jasione, 709 



Jasminum, 687 



Jateorhiza, 638 



Jerusalem Artichoke, Helianthus tuberosus 



Juglandaceae, 609 



Juglandiflorae, 609 



Juglans, 609, *610 ; fertilisation, *574 



Juglans regia, chalazogamy, *573 



Juncaceae, 721 



Juncu.s, *721 



Jungennannia, 489 



Jungermauniales, 488 



Juniperus, *97, *595, *596, 597, 602 



