INDEX. 
971 
Hemerocallis, 597, 598. 
Hemicyclic, 600, 641. 
Hemileia, 956. 
Hepaticae, 345, 346. 
Heppia, 328. 
Heracleum, 610 (Fig. 415). 
Hermaphrodite, 490. 
Herminium, 218 (Fig. 158). 
Herpothamnion, 291 (Fig. 
189). 
Hesperidese, 660. 
Hesperidium, 616. 
Heterocyst, 247. 
Heteroecism, 332. 
Heteromerous, 601. 
Heteromerous lichens, 320. 
Heterosporeae, 389. 
Heterostylism, 907. 
Hibiscus, 616. 
Hieracium, 926. 
Hildenbrandtia, 289. 
Hilum, 492, 570, 618. 
Himanthalia, 282. 
Hippocastaneae, 644, 660 
(Fig. 455). 
Hippocrateacese, 660. 
Hippurideae, 662. 
Hippuris, 155,537, 649 (Figs. 
119, 360). 
Histology of — 
Dicotyledons, 649. 
Filices, 438. 
Gymnosperms, 530. 
Ligulatae, 481. 
Lycopodiaceae, 467. 
Marattiaceae, 420. 
Monocotyledons, 629. 
Ophioglossaceae, 415. 
Phanerogams, 496. 
Rhizocarpese, 459. 
Holargidium, 605. 
Holly, 34, 35 (Fig. 37). 
Hollyhock, 43, loi (Figs. 
42, 83). 
Homoiomerous lichens, 320. 
Hook-climbers, 962. 
Hop, 862, 939. 
Hormogonia, 954. 
Hoya, 29, 85, 668 (Figs. 30, 
466). 
Humiriaceae, 660. 
Hyacinthus, 77 (Figs. 61-64). 
Hybrid, 914. 
Hybridisation, 914. 
Hydnora, 576. 
Hydnoreae, 656. 
Hydnum, 336. 
Hydrangea, 652. 
Hydrangeas, 661. 
Hydrilla, 630. 
Hydrilleae, 631. 
Hydrocharideae, 625, 631. 
Hydrocharis, 624, 626. 
Hydrodictyeae, 244, 255. 
Hydrodictyon, 256. 
Hydrogen, 695, 697. 
Hydropeltidineae, 655, 657. 
Hydrophyllaceae, 658. 
Hydropleon, 664. 
Hydrophylleae, 539 (Fig, 
483). 
Hydrotropism, 845. 
Hymenium, 306 (Figs. 205, 
218, 219, 227). 
Hymenomycetes, 336. 
Hymenophyllaceas, 421, 441. 
Hymenophyllum, 422. 
Hyoscyamus, 598. 
Hypecoum, 604. 
Hypericineae, 544, 660. 
Hypericum, 545, 602 (Figs. 
367, 408). 
Hyph«, 84, 307 (Figs. 55, 
205, 214-217, 225, 229). 
Hyphal tissue, 84. 
Hypobasal cell, 351, 395, 
426, 447, 472. 
Hypochlorin, 710. 
Hypocotyledonary axis, 507, 
635. 
Hypoderma, 95, 98, 123 (Fig. 
102). 
Hypodermiae, 335. 
Hypoglossum, 289. 
Hypogynae, 658. 
Hypogynous, 559. 
Hyponasty, 857. 
Hypophysis, 589 (Figs. 402- 
405). 
Hypothallus, 323. 
Hypothecium, 324. 
Hypsophyllary leaves, 214, 
595. 
Iberis, 649. 
Ice, Formation of, 731 (Fig. 
473)- 
Idioblast, 84, 91. 
lUicium, 615. 
Imbibition, 790. 
Impatiens, 555, 637. 
Incombustiüle deposits in 
cell-wall, 36. 
Indefinite inflorescence, 595. 
Indehiscent fruits, 615, 616. 
Indusium, 419, 435, 455, 
575 (Figs. 303, 304). 
Inferior ovary, 566 (Figs. 
393, 394)- 
Inflorescence, 490, 495, 594^ 
Innovation, 185, 34^. 
Insect-agency in pollination, 
494, 906 (Figs. 488-492). 
Insertion of leaves, 155. 
Integument, 492, 498, 570, 
575 (f^igs. 397, 398). 
Intercalary growth of cell- 
wall, 22. 
Intercalary vegetative zone, 
536, 816. 
Intercellular spaces, 75. 76, 
93, 98 (Figs. 58-66, 78). 
Intercellular substance, 72, 
76, 119. 
Interfascicular cambium, 130. 
Interfascicular phloem, 130. 
Interfascicular xylem, 130. 
Intermediate cells, 119, 651. 
Intermediate tissue, 123. 
Internodes 156. 
Interposed members, 60 r. 
Intine, 32, 505, 514, 553, 
555 (t^igs. 345, 351, 380, 
381). 
Intnipetiolar buds, 639. 
Introrse, 557. 
Intussusception, 29, 58, 666. 
Inulin, 62, 707 (Fig. 51). 
Involucel, 596. 
Involucre, 540, 596. 
Iodine, 695. 
Ipomaea, 599. 
Irideae, 625, 632 (Fig. 427). 
Iron, 696, 699. 
Irritability, 865, 878. 
Isatis, 175 (Fig. 132). 
Isoeteae, 389, 392, 460. 
Isoetes, 173, 182, 215, 388, 
468, 958 (Figs. 138, 329, 
330, 333, 334). 
Isocarpese, 655, 659. 
Isomerous, 6c i. 
Isosporeae, 389. 
Isostemonous, 600. 
Ivy, 78, 837, 935, 938 (Fig. 
66). 
Jasminiaceae, 658. 
jasminum, 651. 
Jerusalem artichoke, 42, 
63. 
Juglandeae, 662. 
Juglans, 633. 
Juliflorae, 655. 
Juncacese, 632. 
Juncagineae, 626, 631 (Fig. 
432). 
Jungermannia, 347, 356(Figs. 
244, 246). 
Jungermannieae, 343, 349, 
35r, 356. 
Juniperineae, 527. 
Juniperus, 509, 511, 513, 
523 (Figs. 349, 355). 
Jussieua, 935. 
Justicia, 555. 
Kalmia, 616. 
Karyokinesis, 17. 
Kaulfussia, 416. 
Kenenchyma, 83, 
Kerria, 65 1. 
