INDEX. 



953 



Hairs, edible, of flowers, ii. 169. 



— flocoose, i. 324. 



— glandular, absorption of ammonia, i. 65. 

 of Sarracenia, i. 126. 



— multiceUular, i. 320. 



— of Aldrovandia leaf, 1. 153. 



— of leaves, in relation to water-absorption, 



i. 227. 



— on Erodium fruit, i. 620. 



— on foliage, abundance in Mediterranean 



district, &c., i. 317. 



— protection of chlorophyll, i. 392. 

 stomata from wetting, i. 292. 



— protective secretory, ii, 234. 



— protect young foliage-leaves, i. 353. 



— scaly, i. 324. 



— silicic acid in, i. 67. 



— silicifled, 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. 



— txif ted. i. 323. 



— unicellular, i. 319. 



— vesicular, i, 324. 



— which retain moisture, i. 228. 

 Hairy covering and anthocyanin, i. 487. 

 Hakea, leaves of, it 751. 



Hakea florida, Australia, protection of 

 stomata from moisture, i. 296. 



stomata, surface view and section, i. 



297. 



Halantium Kulpianum, stamen, ii. 87- 



Hales, Stephen, work on vital phenomena of 

 plants, i. 16. 



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



Half -parasitic, i. 180. 



Half-saprophytic, i. 180. 



Halichondfia and StrQvia dehcatula, ii. 646. 



Halictus, sheltering in flowers, ii. 163. 



Halidrys, ii. 664. 



Halimeda, relation to light, i. 388. 



— thaUus, ii. 645. 



Halimocnemis, coloured stamen- filaments, 

 ii. 183. 



— pollen and pollination, i. 645. 

 Halimocnemis gibbosa, stamen, ii. 87. 

 Hahmocnemis moUissima, inflorescence, &c., 



ii. 184. 

 Haller, Historia Plantarum, ii. 1. 

 Halophila, pollen and poUinatioo, ii. 105. 



— sub-aqueous pollination, ii. 739. 

 Halophytes, application of term, i. 74. 

 Haltica Atropse, beetle on Deadly Night- 

 shade, i. 431. 



Haminia, stamen, ii. 87. 



Hanbiu^a mexicana, tendril, callus -like 



growths of, i. 697. 

 Haplophyllum, honey protection, ii. 241. 

 Haplophyllum Biebersteinii, autogamy, ii. 



337. 

 Hard bast. i. 469. 474. 

 Hard Fern. See Blechnum Spicant. 

 Hare's-ear. See Bupleurum. 

 Harpagophytum procumbens, hooked fruit 



of, ii. 870. 

 Harpoon fruits, ii. 870. 

 Hart's Tongue Fern. See Scolopendrium 



vulgar e. 

 Haustoria, and external stimulus, i. 771 



— application of term in Fungi, i. 164. 



— forms, origin, &c., i. 754. 



— of Cuscuta, L 174. 



— of Erysipheae, ii. 59. 



— of Mildews, ti. 677. 



— of Mistletoe, death, i. 210. 



— of parasites, i. 115. 



— of Peronosporeffl, ii, 56. 

 Hawk-moth, ii. 153. 

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



and Honeysuckle scent, ii. 207. 



and laterally directed flowers, ii. 225. 



Hawkweed, Hairy. See Sieracium villosvm. 

 Hawthorn. See Cratcegm Oxyacantha. 

 Hay-bacillus. See Bacillus svbtilis. 

 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, 1. 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 Erica. 



Heath, Irish. See Dabeoaia 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 Hehx, climbing roots, i. 702, 705, 754. 



embryo and cotyledons, i. 600. 



erect stems aa 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 iu 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, kc, 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. 



— conducting-tissue for poUen-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 aud pro- 

 cumbent twigs, i, 417. 



Helianthemum marifohum, fertilization, ii, 

 411. 



Helianthemum Tuber aria, 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 ni summer, i. 319. 



— hermaphrodite andpistillate flowers, i, 297, 

 Helichrysum annuum, germination, i. 611, 



613. 

 Hehchrysum arenarium, &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 quadritidum, seed-dispersal, ii. 



852. 

 Heliotropium, scent, ii. 200. 

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

 Hellebore, White. See Veratrum album. 



Helleborine. See Epipactis. 

 HeUeborufl, cross-fertilization, ii. 305, 



— hybrids in, ii. 584. 



— movements of stamens, ii. 250. 



— nectaries, ii. 179. 



~ poUen deposition, ii, 278. 



Helleborus niger, colour of sepals, ii. 183. 



habit, ii. 773. 



nectaries, change of colour 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 opeuiug, ii. 217. 



— scentless, ii. 209. 



— stigma, ii. 281. 



Hemerocallis flava, duration of flowering, ii 



213. 



roots, i. 760. 



Hemerocallis fulva, latitude aud closing, ii. 



218. 



opening and closing, ii. 212. 



sterility under cultivation, ii. 402. 



Hemibasidii, distinctive characters, ii. 676. 



Hemionitis, sori, ii. 70t). 



Hemiteha, indusium, ii, 708. 



Hemlock. See Conium maculatum. 



Hemlock Firs, ii. 725. 



Hemp. See Cannabis sativa. 



Henbane. See Sijoscyamus. 



Henbit Dead-nettle. See Lamium amplexi- 



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. 



HepaticEe, 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 vaginee, i. 242. 

 Heracleum Sphondylium, floweriug shoot, ii. 

 789. 



scent, ii. 202. 



Herbaceous plants, effect of mutilation, ii, 



517. 



— shoot, i. 656. 



— stem, i. 715, 

 HerbEe, i. 715. 

 Herbals, early, i. 4. 

 Herbarimu, i. 5. 



Herbivora, power of discrimination, ii. 488. 

 Herb Paris. See Paris quadri/olia. 

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



93, 

 Hercules-club. See Corync pistillaris. 

 Hereditary modification, negative results of 



experiments, ii. 514. 

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



