INDEX. 



953 



Hairs, edible, of flowers, ii. 169. 



— floccose, i. 324. 



— glandular, abeorptiou of ammonia, i. 65. 

 of Sarracenia, i. 126. 



— multicellular, i. 320. * 



— of Aldrovandia leaf, 1. 153. 



— of leaves, in relation to water-absorption, 



i. 227. 



— on Erodium fruit, i. 620. 



— on foliage, abimdance in Mediterranean 



district, &o., i. 317. 



— protection of chlorophyll, i. 392. 

 stomata froro wetting, i. 292. 



— protective secretory, ii. 234. 



— protect young foliage-leaves, i. 353. 



— scaly, i. 324. 



— silicic acid in, i. 67. 



— silicified, i. 440. 



— soft felted, and grazing animals, i. 442. 



— stellate, i. 322; ii. 564. 



— stinging, mode of action, i. 439, 442. 



— T-shaped, i. 321. 



— tufted, i. 323. 



— imicellular, i. 319. 



— vesicular, i. 324. 



— which retain moisture, i. 228. 

 Hairy covering and anthocyauin, i. 487. 

 Hakea, leaves of, ii. 751. 



Hakea florida, Australia, protection of 

 stomata from moisture, i. 296. 



stomata, siu:face view and section, i. 



297. 

 Halantium Kulplanum, stamen, ii. 87- 

 Hales, Stephen, work on vital phenomena of 



plants, i. 16. 

 Halesia, propagation by root-slips, ii. 28. 

 Half-parasitic, i. 180. 

 Half-saprophytic, i. 180. 

 Halichondria and Struvia delicatula, ii. 646. 

 Halictus, sheltering in flowers, ii. 163. 

 HaUdr^, ii. 664. 

 HaUmeda, relation to light, i. 388. 



— thallus, ii. 645. 



Halimocnemis, coloured stamen-fllaments, 

 ii. 183. 



— pollen and pollination, i. 645. 

 Halimocnemis gibbosa, stamen, ii. 87- 

 Halimocnemis mollissima, inflorescence, &c., 



ii. 184. 

 Haller, Historia Plantarum, ii. 1. 

 Halophila, poUen and pollination, ii. 105. 



— sub-acLueous pollination, ii. 739. 

 Halophytes, application of term, i. 74. 

 Haltica Atropee, beetle on Deadly Night- 

 shade, i. 431. 



Haminia, stamen, ii. 87- 



Hanburya mexicana, tendril, callus -like 



growths of, i. 697. 

 HaplophyUum, honey protection, ii. 241. 

 Haplophyllum Biebersteinii, autogamy, ii. 



337. 

 Hard bast, i. 469. 474. 

 Hard Fern. See Blechmim Spicant. 

 Hare's-ear. See Bupleurum. 

 Harpagophytum procumbens, hooked fruit 



of, ii. 870. 

 Harpoon fruits, ii. 870. 

 Hart's Tongue Fern. See Scolopendrium 



Haufltoria, and external stimulus, i. 771 



— application of term in Fungi, i. 164. 



— forms, origin, &c., i. 754. 



— of Cuscuta, i. 174. 



— of Erysiphese, ii. 59. 



— of MUdewB, ii. 677. 



— of Mistletoe, death, i. 210. 



— of parasites, i. 115. 



— of Peronosporeae, ii. 56. 

 Hawk-moth, ii. 153. 

 Hawk-moths, and flower-colour, ii. 196. 



and Honeysuckle scent, ii. 207. 



and laterally directed flowers, ii. 225. 



Hawkweed, Hairy. See Hieracium villosum. 

 Hawthorn. See Gratmgus Oxyacantha. 

 Hay-baciUus. See Bacillus suhtilis. 

 Hazel. See Corylus. 



Hearts'-ease. See Viola tricolor. 



Heat, action of, i. 58. 



— and distribution of plants, i. 527. 



— and dried seeds, i. 555. 



— and growth, i. 512. 



— and growth, estimation, i. 557. 



— and opening of flowers, ii. 219. 



— distribution in germination, i. 560. 



— effect on growth, &c., ii. 503. 



— effect on protoplasm, i. 553. 



— evolution in respiration, i, 497. 



— latent, i. 492. 



— nature of, i. 58, 513. 



— protection from loss, i. 528. 



— sensible, i. 492. 



— source of, i. 518. 



— transformation by plant, i. 492. 

 Heath. See Mrica. 



Heath, Irish. See Ddbeoda polifolia. 



— vegetation, indigestibility, i. 432. 

 Hedera, colour and flies, ii. 197. 



— easy vegetative propagation, i. 251. 



— honey, ii. 173, 179. 



— leaf -mosaic, i. 423. 



— roots from leaf-stalks, i. 772. 



— scent, i. 200. 



Hedera Helix, climbing roots, i. 702, 705, 754. 



embryo and cotyledons, i. 600. 



erect stems as cuttings, i. 709. 



flower-opening constant, i. 559. 



grafting and dwarf trees, ii. 518. 



on Oak, i. 703. 



resistance to cold, ii. 489. 



scent, ii. 209. 



variety in asexual shoots, ii. 471. 



Hedera poetarum, and resistance to cold, ii. 



489. 

 Hedge-shrubs, mode of growth, i. 673. 

 Hedychium, ii. 736. 



— hybrids and starch-grains, &c., ii. 566. 

 Hedychium angustifolium, ovary and fruit, 



ii.77. 

 Hedysarum Canadense, hooked fruit, ii. 871. 

 Heliamphora nutans, habitat, ascidia, &c., 



i. 124, 125. 

 Helianthemum, cleistogamy, ii. 393. 



— conducttng-tissue for pollen-tubes, ii. 410. 



— duration of blossoms, ii. 214. 



— elevation of leaf-stalks, i. 419. 



— flowers follow the sun, ii. 123. 



— hairs on, i. 317, 323. 



— nectarless, ii. 167. 



— pollen-grains, ii. 99. 



— protection of pollen, ii. 127. 



— stigma, ii. 281. 



Helianthemum alpestre, protection of pollen, 

 ii. 120. 



protogynous, ii. 310. 



Helianthemum grandiflorum, erect and pro- 

 cumbent twigs, i. 417. 



Helianthemum marifolium, fertUization, ii. 

 411. 



Helianthemum Tuberaria, Mediterranean, 

 i. 319. 



Helianthus, ovary, ii. 73, 78. 



Helianthus annuus, germination constant, 

 i. 558. 



movements of cotyledons, i. 532. 



Helianthus tuberosus, alleged effect of graft 

 on Helianthus annuus, ii. 572. 



Helichrysum, coloured bracts, ii. 187. 



— decurrent leaves, i. 336. 



— hairy covering in summer, i. 319. 



— hermaphrodite andpistillate flowers, i. 297. 

 Helichrysum annuum, germination, i. 611, 



613. 

 Helichrysumarenarium,&c., coloured bracts, 

 ii. 187. 



flower-opening constant, i. 559. 



with gall of Entyloma Aschersonii, ii. 



521. 

 Helichrysum virgineum, Mount Athos, ii. 187. 

 Helicodiceros, pollination, ii. 164. 

 Heliosperma quadrifidum, seed-dispersal, ii. 



852. 

 Heliotropium, scent, ii. 200. 

 Hell-bind, name for Cuscuta, i. 175. 

 Hellebore, White. See Veratrum album. 



Helleborine. See Ejnpactis. 

 Helleborus, cross-fertilization, ii. 305. 



— hybrids in, ii. 584. 



— movements of stamens, ii, 250. 



— nectaries, ii. 179. 



— pollen deposition, ii. 278. 

 Helleborus niger, colour of sepals, ii. 183. 

 habit, ii. 773. 



nectaries, change of colom: in floral 



leaves, i. 376. 

 — ' — odourless, i. 431. 

 Helosis, leaf-scales, i. 191, 196. 

 Helotium Tuba, ii. 19. 

 Helvella, asci and ascospores, ii. 19. 

 Helvella fistulosa, &c., i. 589; ii. 19, 83, 



683. 

 Helwingia rusciflora, flowers on leaves, ii. 



38. 

 Hemerocallis, ii. 731. 



— cross-fertilization, ii. 301. 



— geographical distribution, ii. 402. 



— latitude and opeoing, ii. 217. 



— scentless, ii. 209. 



— stigma, ii. 281. 



Hemerocallis flava, duration of flowering, ii. 



213. 



roots, i. 760. 



Hemerocallis fulva, latitude and closing, ii. 



218. 



opening and closing, ii. 212. 



sterility under cultivation, ii. 402. 



Hemibasidii, distinctive characters, ii. 676. 



Hemionitis, sori, ii. 706. 



Hemitelia, indusium, ii. 708. 



Hemlock. See Conium maculatum. 



Hemlock Firs, ii. 725. 



Hemp. See Cannabis sativa. 



Henbane. See Syoscyamus. 



Henbit Dead-nettle. See Lamium amplecci- 



caule. 

 Henslowia, parasitic, i. 204. 

 Hepatica triloba, anthocyanin, i. 520. 

 cause of flecked appearance of leaves, 



i. 285. 



dates of flowering, i. 519. 



duration of flowering, ii. 213. 



flower colour and habitat, ii. 194. 



winter protection, i. 550. 



HepaticBe, absorption cells of, i. 86. 



— absorption of carbonic acid, i. 62. 



— absorption of water, i. 218. 



— afford home to Podiferse, i. 225. 



— and Nostoc, ii. 622. 



— apical-cell, i. 578. 



— cell-complexes, i. 591. 



— description, ii. 696. 



— forming rings, ii. 794. 



— in cascades, i. 79. 



— offshoots dispersed by rain, ii. 809. 



— on mouldered dust of dead trees, i. 109. 



— origin of sporophyte, ii. 654. 



— pressure exerted by rhizoids, i. 514, 



— saprophytic, on steep rocks, i. 108. 



— structure, i. 590. 



Heracleum, habitat and greenness, i. 384. 



— peripheral flowers, ii. 186. 



— water-receptacles, i. 240. 



Heracleum palmatum, organic remains in 



inflated vaginge, i. 242. 

 Heracleum Sphondylium, flowering shoot, ii. - 

 789. 



scent, ii. 202. 



Herbaceous plants, effect of mutilation, ii. 



517. 



— shoot, i. 656. 



— stem, i. 715. 

 Herbse, i. 715. 

 Herbals, early, i. 4. 

 Herbarium, i. 5. 



Herbivora, power of discrimination, ii. 488. 

 Herb Paris. See Paris quadrifolia. 

 Herbs, perennial, foliage-leaves and rain, i. 



93. 

 Hercules-club. See Coryne pistillaris. 

 Hereditary modification, negative results of 



experiments, ii. 514. 

 Hermannia, propagation by root-slips, ii. 28. 



