952 



INDEX. 



Gnaphalium Leontopoilium, hairiness and 

 habitat. 1. 316. 



huire, i. 321. 



Goaphaliuiu luteo-album. gall of Entyloma 



Aschersonii, kc, ii. 521. 

 Gnaphahum tomentosuru. hairs, ii. 330, 321. 

 Guetaceae, degcription, ii. 726 



— embryo development, ii. 437. 



— Eadlicher's grouping, ii. 604. 



— seed-coats of, ii. 441. 



Godetia, riscin of poUeD-grains, ii. 101. 

 Goebel, classihcation of Thallophytes, ii. 606. 

 Gcethe, i. 6. 



— attitude towards Liunean system, ii. 287. 



— his typical plant, i. 12. 



— on seed-dispersal, ii. 833. 



— treatise on metamorphosis, i. 10. 

 Gold Ferns. See Qyumogrammt. 

 Gold of Pleasure. See Camelina sativa. 

 Golden Rod. See Solidago. 



Golden Saxifrage. See Chrysosiilenium. 

 Gomontia polyrhiza, life-cycle, ii. 651. 

 Gomphonema capitatum, ii. 626. 



— colonies, i. 585. 



Gonatonema, aplanospore formation, ii. 658. 

 Goneoclinic hybrids, ii. 559, 587. 

 Gongora galatea, twisting of ovary, ii. 224. 

 Gonidia. of Lichens, ii. 692. 

 GonioUmon. absorptive organs, i. 234. 

 Gonium, structure, &c., ii. 631. 

 Goodeniaceae, ii. 767. 



Goodyera repens. habitat and foliage, i. 110. 

 Gooseberry. See Ribes OrossuJuTia. 

 Gorteria riugens. colour-contrast in flower, 



U. 190. 

 Gossypium Barbadense, hairy seeds, ii. 855. 

 Gossypium herbaceum, fruit and seeds, ii. 



423. 

 Gourd. See Cucurbita Pepo. 

 Graft, relation to stock, ii. 571. 

 Graft-hybrids, ii. 569. 572. 

 Grafting, i. 213. 214. 

 Grafting, perpetuation of hybrids by, ii. 556 



— resemblance to parasitism iuLoranthaceae, 



i. 213. 

 GramiGe.-e. ii. 719. 



— attacked by Smut-fungi, ii. 674. 



— brood-bodies, ii. 29. 



— caryopsis, ii. 746. 



— cleistogamy in, ii. 392. 



— course of poUen-tubes. ii. 408, 



— dehiscence of pollen-sacs, ii. 93. 

 -r — descriptive details, ii. 745. 746. 



— dichogamy, ii. 140. 312. 



— elevation and coloration, ii. 511. 



— embryo of, ii. 422. 



— from chalk, ii. 613. 



— germination, i. 604. 



— glumes, ii. 434. 



— hybrids among, ii. 583. 



— pollen-grains, ii. 99. 



— pollinatiou. ii. 133, 140. 141. 



— substratum, ii. 498. 



— venation, i. 634. 



Grammatocarpus volubilis, nutation, i. 683. 

 Grammatophora eerpentina, ii. 626. 

 Grammitideie, tribe of Polypodiaceae, ii. 706. 

 Grammoptera, and Listera, ii. 256. 

 "Grandes espfices", ii. 581. 



Granite, i. 83. 



Granulose, formation, i. 459, 460. 



Grapes, and Peronospora viticolo, ii. 670. 



Grape-sugar, decomposition by yeaat, i. 506. 



Graphite, origin of, ii. 610. 



Grasses. See also GraminecB 



— anthocyaoin and elevation, i. 522. 



— aqueous uiautle of assimilating tissue, L 



369. 



— localization of wai, i. 292. 



— Mediterranean, hairiness of, i. 318. 



— perennial, time of appearance in drj' 



regions, i. 318. 



— periodic folding of leaves, i. 339. 



— reed-like, adaptation to wind. i. 427. 



— silicic acid in, 1. 67. 



— stomata on leaves, i. 280. 



— tiabecula) in green cells, i. 374. 



Grass-leaves, folding of, i. 341. 342. 343- 

 Grass-tree, Australian. See Xanthorrh^a 



hastilis, PI. XVI. 

 Grass Wrack. See Zostcra. 

 Gravitation, force to be overcome in ascent 



of crude sap, i. 269. 

 Grayness. of shore vegetation, i. 390. 

 Grazing animals and young trees, i. 445. 

 Greek flora, general grayness of, i. 317. 

 Green, intensity of, and illumination, i. 3S1. 



— Algje. See Chlorophycew. 



zone in sea. i. 390. 



Greenland, winter temperatures, i. M7. 

 Green Laver. See Ulia latissima. 

 Green-rot, of trees, i. 263. 



Green tissue, production of, i. 426. 



— tissues, behaviour towards hght, i. 383, 



384. 

 Gregoria, heterostyly, ii. 302. 

 Grevillea. vertical leaf-blades, i. 336. 

 Grew, Nebemiah, figures of plant anatomy, 

 i. 22. 



on crumpled aestivation, ii. 210. 



Grimmia, hybrids in, ii. 583. 



— renders limestone friable, i. 258. 



— vegetative propagation, ii. 45S. 

 Grimmia apocarpa, absorption of carbonic 



acid. i. 62. 

 Grimmia Hartmanni, parthenogenesis,ii. 464. 

 Grimmi*. collection of dust, i. 266. 



— nutrition, i. 81. 



— special absorptive cells of, i. 218. 



— spore-dispersal, ii. 814. 



Grindelia squarrosa, varnish-like covering, 



i. 313. 

 Gromwell. See Lithospemium. 

 Grooves on stem, and rain-water, i. 95. 

 Ground Ivy. See Glechoma hederaaa. 

 GroundseL See Senecio vulgaris. 

 Ground water, inefficiency, &c., ii. 501. 

 Growth and heat, i. 512. 518, 557. 



— and light, i. 518. 



— and periodic movements, ii. 220. 



— and snow-pressure, i. 523. 



— dependence on water, i. 510. 



— geometrically considered, i. 405. 



— hypothetical mechanism, i. 512. 



— influence of elevation on, ii. 407, 508, 509, 



523. 



— nature of, i. 55. 



— period of, in wettest season in certain 



locahties, i. 306. 

 Grubbiaceje. ii. 754. 

 Gschnitzthal (Tyrol), i. 65. 



— changes in flora of, ii. 910. 



— Kemer's experimental gai-den, ii. 453. 



— mechanical force of roots, i. 514. 

 Guard-cells of stoma, i. 280. 



function and structure, i. 308. 



Guelder-rose. See Viburnum Opulus. 

 Guepinia, appearance of, i. 112. 



— shrivelling through loss of water, i. 216. 

 Guests of plants, bidden and unbidden, il 221. 

 Gulf Stream, blueness, i. 389. 

 Gulf-weed. See Sargassum bacci/crum. 

 Gum-arabic, source, i. 458. 



Gum-resin, water retention, i. 330. 

 Gum-tragacanth, source, i. 458. 

 Guttifene of Braun, ii 605. 

 Gymnadenia, ii. 737. 



— and Noctuje, ii. 256. 



— hybrids, u. 563. 583. 



— pollen deposition and retention, ii. 284. 



— spur and honey, ii. 255. 

 Gymnadenia Conopsea, and Nigrilella nigra. 



colour of flowers and hybrid, ii. 567. 



capsules in dry and wet weather, ii. 448- 



scent, ii. 201, 203. 



seed, ii. 451. 



Gymnoascus uncinattis, habitat, i. 118. 

 Gymnocladus, i. 488. 



— bud-scales, i. 626. 



Gymnocladus canadensis, leaf, diurnal posi- 

 tions, i. 534. 



reserve-buds, ii. 32. 



separation -layers, i. 360. 



Gyuinogramme, sorus, ii. 706. 



Gymnosperma;, absence of fossil connecting 

 links with Phanerogams, ii. 613. 



— classes, iL 718. 



— development of embryo, ii. 437. 



— distinctive features. U. 719. 



— fertilization, ii. 418. 



— fruits, ii. 437. 



— homology of embryo-sac and contents to 



germinated macrospore, ii. 478. 



— of Endlicher. &c., ii. 604. 



— pollination, ii. 419. 



— protection of ovule, ii. 72. 

 Gymnosporangium. teleutosporea, &c., ii. 687. 

 Gymnosporangium clavariseforme, &c., ii. 519, 



521. 

 Gymnosporangium juniperinum.heteroecism, 



ii. 6S6. 

 Gymnostoraum, absence of peristome, ii. 703. 

 Gymnostomum curvirostre, lime incrusted, 



i. 260. 

 Gynandne, floral characters, ii. 736. 

 Gynerium argenteum, pollination, ii 142 

 Gypsophila, autogamy, ii. S45. 



— nectaries, ii. 176. 



Gypsophila paniculata, inflorescence, i. 738. 

 Gypsophila repens, anthocyanin, i. 522. 



elevation and coloration, ii- 511. 



Gypsum, good for clover, i. 74. 



— in celi i. 72. 



— on leaves, i. 236. 



Gyrocarpus Asiaticus, seed-dispersal, ii. 853. 

 Gyrogonites, fossil characeous fruits, ii. 661. 

 Gyrophoras, absorption of water, i. 218. 



H. 



Haastia, distribution andappearance, ii. 188. 

 Habenaria, ii. 737. 



— pollen deposition and retention, ii. 284. 



— specific differences and insect visits, it 



256. 



— spur and honey, ii. 255. 



Habenaria bifoUa, flower and pollination, 

 ii. 225. 227. 



nocturnal perfume, U- 208. 



pollinia. ii. 256. 



scent, ii. 201. 201. 



Habenaria chlorantha, rostellum, ii. 255. 

 Habenaria Hookeri, specific distinction from 



H. montana, ii. 256. 

 Habenaria montana, pollinia, ii. 256. 



scentless, ii. 204. 



Haberlea, nectary, ii. 175. 



Haberlea rhodopensis, direction of flowers, 



ii. 225. 

 Habitat and greenness, i. 384. 



— and influence on plant form, ii. 497. 



— and permanence of hybrids, iL 5S7. 



— and variation, i. 394. 



— influence on anatomy, ii. 511. 



— of epiphytes, i. 222. 325. 



— of tamarisks, frankenias, &c, extreme 



aridity of, i. 237. 

 Habitats, sorts of, ii. 879, 883. 

 Hacquetia, behaviour of stamens, L 740. 



— geitouogamy, details, ii. 323. 



— protogynous. ii. 311. 



Hadena and Habenaria bifoHa, ii. 256. 



Hrematocbrome, of eye-spot, ii 629. 



Hsematococcus, reason of name. ii. 631. 



Hairaatococcus pluvialis. See SphtrrfUa. 



Hairiness of plants, in relation to habit and 

 climate, i. 316. 



Hair-mosses. See Polytrichum. 



Hairs, absence of, in plants with incrusta- 

 tions, i. 313. 



— actinia-like, i. 324. 



— air-containing, protective tunctiooB. i. 314. 



— articulated, i. 320. 



— branched, i. 323. 



— capitate or glandular, i. 229. 



— caulioe of Stellaria media, i. 229. 



— clayey appearance due to, L 324. 



— covering, i. 321. 



— dry, air-containing, chief means of protefr 



tion from undue evaporation, i. 317. 



