INDEX. 



953 



Hairs, edible, of flowers, ii. 169. 



floccose, i. 324. 



glandular, absorption of ammonia, i. 65. 

 of Sarracenia, i. 126. 



multicellular, i. 320. 



of Aldrovandia leaf, i. 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. 



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. 



unicellular, i. 319. 



vesicular, i. 324, 



which retain moisture, i. 228. 

 Hairy covering and anthocyanin, i. 487. 

 Hakea, leaves of, ii. 751. 



Hakea florida, Australia, protection of 

 Btomata from moisture, i. 2%. 



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-slips, ii. 28. 

 Half-parasitic, i. 180. 

 Half-saprophytic, i. 180. 

 Halichondria and Struvia delicatula, ii. 646. 

 Halictus, sheltering in flowers, ii. 163. 

 Halidrys, ii. 664. 

 Halimeda, relation to light, i. 388. 



thallus, ii. 645. 



Halimocnemis, coloured stamen-filaments, 

 ii. 183. 



pollen and pollination, i. 645. 

 Halimocnemis gibbosa, stamen, ii. 87. 

 Halimocnemis mollissima, inflorescence, &c. 



ii. 184. 



Haller, Historia Plantarum, ii. 1. 

 Halophila, pollen and pollination, 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. 

 Hanburya 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 Scolopendnum 



vulgare. 

 Haustoria, and external stimulus, i. 771 



application of term in Fungi, i. 164. 



forms, origin, &c., i. 754. 



of Cuscuta, L 174. 



of Erysipheso, ii. 59. 



of Mildews, ii. 677. 



of Mistletoe, death, L 210. 



of parasites, L 115. 



of Peronosporese, ii. 56. 

 Hawk-moth, ii. 153. 

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

 and Honeysuckle scent, ii. 207. 



an( j laterally directed flowers, ii. 225. 



Hawkweed, Hairy. See Hieracium tnttom. 

 Hawthorn. See Cratcegus Oxyacantha. 

 Hay-bacillus. See Bacillus subtilis. 

 Hazel. SeeCorj/Ius. 

 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 /- 



Heath. Irish. See Dabeocia pol (folia. 



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 poetaruin, 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, Ac., 



i. 124, 125. 

 Helianthemum. cleistogamy, ii. 393. 



conducting-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, L 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- 



umbent twigs, i. 417. 

 Helianthemum marifolium, fertilization, 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 graf 



on Helianthus annuus, ii. 572. 

 Helichrysum, coloured bracts, ii. 187. 



decurrent leaves, L 336. 



hairy covering in summer, i. 319. 



_ hermaphrodite andpistillate flowers, i. 29: 

 Helichrysum annuum, germination, i. 611, 



Helichrysum arenarium, *c., coloured bracts, 

 ii. 187. 



flower-opening constant, L 559. 



with gall of Entyloma Aschersonil, ii. 



Helichrysum virgineum.Mount Athos, U. 187 

 Helicodiceros, pollination, ii. 164. 

 Heliospenna quadrifiduin, seed-dispersal, u. 



852. 



Heliotropium, scent, ii. 200. 

 Hell-bind, name for Cuscuta, L 175. 

 Hellebore, White. See Ferotnim albvm. 



elleborine. See Epiporffe. 

 Helleborus. cro* 



hybrids in, it. 684. 



movements of stamens, ii. 280. 



nectaries, ii. 179. 



pollen deposition, ii. 278. 

 Helleborus niger, colour of sepals, ii. 183. 



nectaries, change of colour In floral 



leaves. L 376. 



odourless, i. 431. 



Helosis. leaf-scale*, i. 191. 198. 



i Tuba. ii. 19. 



Helvetia, ascl and asoospores. U. 19. 

 Helvetia fistulosa, Ac.. I. 589: u. 19. 83. 



683. 

 Helwingia nuciflora. flowers on leaves, ii. 



38. 



-cross i .SOL 



- geographical distribution, ii. 401 



- latitude and opening, it 217. 



- scentless. U. 209. 



- stigma, ii. 281. 



Hemerocallis flava. duration of flowering, i. 



Bl 



roots, i. 760. 



Hemerocallis fulva, latitude and closing. Ii. 



218. 



opening and closing, ii. 211 



sterility under cultivation, Ii. 401 



Hemibasidii, distinctive characters, it. <TS. 

 Hemionitis. sort, ii. 706. 

 Hemitelia, indusium. ii. 708. 

 Hemlock. See Conium 

 Hemlock Firs, il. 725. 

 Hemp. See Cannot* Mas. 

 H.-iiKin.'. .- 7f ./..>,-,,.<,. 

 Henbit Dead nettle. See 



MSjfe 



Henslowia. parasitic, i. 204. 

 Eiepatica triloba, anthocyanin, i. 690. 

 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, L 680. 



Hepaticw, absorption cells of. I. 86. 



- absorption of carbonic add. 1. 61 



absorption of water, i. 218. 



afford home to Podifene, i. 225. 



and Nostoo, ii. 622. 



- apical-cell, L 678. 



cell-complexes, i. 59L 



- description, ii. 698. 



forming rings, ii. 794 



in cascades, i. 79. 



offshoots dispersed by rain, ti 809. 



on mouldered dust of dead trees. L 109. 



origin of sporophyte, ii. 654. 



_ pressure exerted by rhizoids, L 514. 



- saprophytic, on steep rocks, i. 1 



structure, L 590. 



Heracleum, habitat and greenness. L 384, 



peripheral flowers, ii. 186. 



- water-receptacles. L 240. 



Heracleum palmatum, organic remains to 



Inflated vaginae, L 242. 

 Heracleum Sphondylium. flowering shoot, IL 

 789. 



scent, ii. 202. 



Herbaceous plants, effect of mutilation, U. 



517. 



- shoot, L 656. 



- stem. i. 715. 

 Herbss, i. 715. 

 Herbals, early, L 4. 

 Herbarium, L 6. 



Herbivora, power of discrimination, ii 488. 

 Herb Paris. See Pari. fiwdri/olta. 

 Herbs, perennial foliage-leaves and rain. I. 



Hercules-club. See Coryiu jrfsrtU-rt*. 

 Hereditary modification, negative ran 



experiments, ii. 514. 

 Hermannia. propagation by rooVsllps, ii. 28. 



