952 



INDEX. 



Gnapbalium Leontopodium, hairiness and 



habitat, i. 316. 

 -- hairs, i. 321. 

 Gnaphalium luteo-album, gall of Entyloma 



Aschereonii, &c., ii. 521. 

 Gnaphalium tomentosuni, hairs, ii. 330, 321 

 Gnetacese, description, ii. 726. 



embryo development, ii. 437. 



Endlicher's grouping, ii. 604. 



seed-coats of, ii. 441. 



Godetia, viscin of pollen-grains, ii. 101. 

 Gcebel, classification of Thallophytes, ii. 606. 

 Goethe, i. 6. 



attitude towards Linnean system, ii. 287. 



his typical plant, i. 12. 



on seed-dispersal, ii. 833. 



treatise on metamorphosis, i. 10. 

 Gold Ferns. See Gymnogramme. 

 Gold of Pleasure. See Camelina sativa. 

 Golden Rod. See Solidago. 



Golden Saxifrage. See Chrysosplenium. 

 Gomontia polyrhiza, life-cycle, ii. 651. 

 Gomphonema capitatum, ii. 626. 



colonies,!. 585. 



Gonatonema, aplanospore formation, ii. 658. 

 Goneoclinic hybrids, ii. 559, 587. 

 Gongora galatea, twisting of ovary, ii. 224. 

 Gonidia, of Lichens, ii. 692. 

 Goniolimon, absorptive organs, i. 234. 

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

 Goodeniaceae, ii. 767. 



Goodyera repens, habitat and foliage, i. 110. 

 Gooseberry. See Ribes Grossularia. 

 Gorteria ringens, colour-contrast in flower, 



ii. 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 inLoraathaceae, 



i. 213. 

 Gramineze, ii. 719. 



attacked by Smut-fungi, ii. 674. 



brood-bodies, ii. 29. 



caryopsis, ii. 746. 



cleistogamy in, ii. 392. 



course of pollen-tubes, ii. 408. 



dehiscence of pollen-sacs, ii. 93. 



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. 

 -pollination, ii. 133, 140, 141. 



substratum, ii. 498. 



- venation, i. 634. 



GrammatocarpuB volubilis, nutation, i. 683. 

 Grammatophora serpentina, ii. 626. 

 Grammitide, tribe of Polypodiaceaj, ii. 706 

 Grammoptera, and Listera, ii. 256. 

 "Grandes especes", ii. 581. 



Granite, i. 83. 



Granulose, formation, i. 459, 460. 



Grapes, and Peronospora viticolo, ii. 670. 



Grape-sugar, decomposition by yeast, i. 506 



Graphite, origin of, it 610. 



Grasses. See also Qramineas 



anthocyanin and elevation, i. 522 



~ *^ w mantle of assimilating 'tissue i. 

 369. 



localization of wax, i. 292. 



- Mediterranean, hairiness of, i. 318 



f appearance dr 



- periodic folding of leaves, i. 339. 



reed-like, adaptation to wind, i 427 



- silicic add in, i. 67. 



Btomata on leaves, i. 280 



trabeculaj in green cells, i. 374. 



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

 Grass-tree, Australian. See Xanthorrhe 



hastilis. 



Grass Wrack. See Zostera. 

 Gravitation, force to be overcome in ascen 



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. 381 



Algae. See Chlorophycece. 



zone in sea, i. 390. 



Greenland, winter temperatures, i. 547. 

 Green Laver. See Viva latissima. 

 Green-rot, of trees, i. 263. 



Green tissue, production of, i. 426. 



tissues, behaviour towards light, i. 383 



384. 



Gregoria, heterostyly, ii. 302. 

 Grevillea, vertical leaf -blades, i. 336. 

 Grew, Nehemiah, figures of plant anatomy 

 i. 22. 



on crumpled aestivation, ii. 210. 



Grimmia, hybrids in, ii. 583. 



renders limestone friable, i. 258. 



vegetative propagation, ii. 458. 

 Grimmia apocarpa, absorption of carbonl 



acid, i. 62. 



Grimmia Hartmanni, parthenogenesis, ii. 464 

 Grimmite, 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 lAthospermum. 

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

 Ground Ivy. See Glechoma hederacea. 

 Groundsel. See Senecio vulgaris. 



round 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 



localities, i. 306. 

 Grubbiaceae, ii. 754. 

 Gschnitzthal (Tyrol), i. 65. 



changes in flora of, ii. 910. 



Kernels experimental garden, ii. 453. 



mechanical force of roots, i. 514. 

 Guard-cells of stoma, i. 280. 



function and structure, i. 308. 



Guelder-rose. See Viburnum Opulus. 



uepinia, appearance of, i. 112. 



shrivelling through loss of water, i. 216. 

 Guests of plants, bidden and unbidden, ii. 221 

 Gulf Stream, blueness, i. 389. 

 Gulf-weed. See Sargassum bacciferum. 

 Sum-arable, source, i. 458. 



Gum-resin, water retention, i. 330. 

 Gum-tragacanth, source, i. 458. 

 Guttifene of Braun, ii. 605. 

 rymnadenia, ii. 737. 



and Noctuaj, ii. 256. 



hybrids, ii. 563, 583. 



pollen deposition and retention, ii. 284. 



spur and honey, ii. 255. 

 Gymnadenia Conopsea, and Nigritella nigra, 



colour of flowers and hybrid, ii. 567. ' 



capsules in dry and wet weather ii 448 



scent, ii. 201, 203. 



seed, ii. 451. 



Gymnoascus uncinatus, habitat i 118 

 Gymnocladus, i. 488. 



bud-scales, i. 626. 



"lymnocladus canadensis, leaf, diurnal nosi 

 tions, i. 534. 



reserve-buds, ii. 32. 



separation-layers, i. 360. 



Gymnogramme, sorus, ii. 706. 



Gymnospermse, absence of fossil connecting 

 links with Phanerogams, ii. 613. 



classes, ii. 718. 



development of embryo, ii. 437. 



distinctive features, ii. 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, teleutospores, &c., ii. 687. 

 Gymnosporangium clavariaeforme, &c., ii. 519, 



521. 

 Gymnosporangium juniperinum.heteroecism, 



ii. 686. 



Gymnostonium, absence of peristome, ii. 703. 

 Gymnostomum curvirostre, lime incrusted, 



i. 260. 



Gynandrse, floral characters, ii. 736. 

 Gynerium argenteum, pollination, ii. 142 

 Gypsophila, autogamy, ii. 345. 



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 cell, 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 and appearance, ii. 188. 

 Habenaria, ii. 737. 



pollen deposition and retention, ii. 284. 



specific differences and insect visits, ii. 



256. 



spur and honey, ii. 255. 



Habenaria bifolia, flower and pollination, 

 ii. 225, 227. 



nocturnal perfume, ii. 208. 



pollinia, ii. 256. 



scent, ii. 201, 204. 



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, ii. 587. 



and variation, i. 394. 



influence on anatomy, ii. 511. 



of epiphytes, i. 222, 325. 



of tamarisks, fraukenias, &c., extreme 



aridity of, i. 237. 

 Habitats, sorts of, ii. 879, 883. 

 Sacquetia, behaviour of stamens, i. 740. 



geitonogamy, details, ii. 323. 



protogynous, ii. 311. 



Eladena and Habenaria bifolia, ii. 256. 



3pematochrome, of eye-spot, ii 629. 



Isematococcus, reason of name, ii. 631. 



Isematococcus pluvialis. See Sphcerella. 

 Hairiness of plants, in relation to habit and 

 climate, i. 316. 



lair-mosses. See Polytrichum. 



lairs, absence of, in plants with incrusta- 

 tions, i. 313. 



actinia-like, i. 324. 



air-containing, protective functions, i. 314. 



articulated, i. 320. 



branched, i. 323. 



capitate or glandular, i. 229. 



cauline of Stellaria media, i. 229. 



clayey appearance due to, i. 324. 



covering, i. 321. 



dry, air-containing, chief means of protec- 



tion from undue evaporation, i. 317. 



