INDEX. 



951 



Gentiana Clusii, favourite soil, ii. 496. 



flowers and autogamy, ii. 388. 



Gentiana cruciata. protandrous, ii. 311. 



Gentiana germaoica, grooTing of stem, i 95. 



heterostyly, u. 302. 



protogynous, ii. 311. 



suction cells of roots, i. 115. 



Gentiana glacialis, corolla and autogamy, ii. 

 3&6. 



guides to honey, ii. 24S. 



habitat, i. 112. 



protogynous, ii. 311. 



weather and autogamy, ii. 391. 



Gentiana lutea, and field-mice, i. 763. 



and hybridization, ii. 585. 



Gentiana nana, anther, ii. 90. 



habiUt, i. 112. 



shortest stem, 1. 660. 



Gentiana nivalis, cross- fertilization, ii. 301. 



opening and closing, ii, 116, 220. 



Gentiana Paanonica, and field-mice, i. 763. 



insect reception, ii. 229. 



protandrous, ii. 311. 



Gentiana Pneumonanthe, abode for beetles, 

 ii. 163. 



insect reception, ii. 229. 



protandrous, ii. 311. 



Gentiana prostrata, habitat, i. 112. 



protandrous, ii. 311. 



weather and autogamy, ii. 391. 



Gientiana punctata, and tield-mice, i. 763. 



insect reception, ii. 229. 



protandrous, ii. 311. 



Gentiana purpurea and hybridization, ii. 585. 



Gentiana Rhietica, gall-mites and flower- 

 metamorphosis, ii. 548. 



grooving of stem. i. 95. 



heterostyly. ii. 302. 



opening of flowers, ii. 219. 



— — poUen-graius, ii. 98. 

 protogynous, ii. 311. 



suction cells of roots, i. 115. 



Gentiana vema, blue flower, ii. 198. 



effect of mutilation, ii. 517. 



protogynous, ii. 311. 



scentless, ii. 209. 



Gentianacece, ii. 771. 



— autogamy in, ii. 366. 



— dichogamy in, ii. 311. 



— grooving of stem, i. 95. 



— heterostylism in, ii. 302. 



— hybrids among, ii. 5S5. 



Gentianese, Ashes, &c., habitat in relation to 

 water-collecting habit, i. 240. 



— water-collecting arrangement of leaves, i. 



156. 231. 

 Geoglossum, i. 112; ii. 683. 

 Geographical areas, enumerated, ii. 898. 



— position and blossoming, i. 565. 

 Geometrical arrangement, of cells and leaves, 



i. 405. 

 Geotropism, positive, i. 88. 



neutralized in roots of certain plants, 



i. 90. 

 Geraniacese, autogamy in. ii. 335. 



— nectaries, ii. 176. 



Geranium, alternative cross- and self-polli- 

 nation, ii. 33t5. 



— venation, i. 632. 



Geranium argenteum, cross-fertilization, ii. 



30G. 



&.C., dichogamy, ii. 311. 



Geranium columbinum.&c, autogamy, ii. 336. 



&c.. protogynous, ii. 311. 



Geranium divaricatum, weaving habit, I. 674. 

 Geranium lucidum. autogamy, ii. 336. 



sexual conditions, ii. 296. 



Geranium nodosum, weaving habit, i. 674. 

 Geranium palustre, seed- dispersal, ii. 835. 



weaving undershrub, i. 673. 



Gerac iu m pratense, cross-fertilization, ii. 306. 



duration of flowering, ii. 213. "■ 



Geranium pusillum, autogamy, ii. 332. 

 Geranium Pyrenaicum, leaf-mosaic, i. 410. 

 Geranium Robertianum. guides to honey, ii. 



249. 

 pollen-grains, ii. 97. 



Geranium Robertianum, protection of pollen, 



ii. 120. 

 Geranium sanguineum, scroll-gall. ii. 530. 

 Geranium sylvaticum, cross-fertilization, ii. 

 306. 



effect of mutilation, ii. 517. 



protandrous flowers, ii. 307. 



Germander. See Teucrium. 

 Germen. See Ovary. 

 Germinal vesicle. See Oophust. 

 Germination, Githago, &c., i. 610. 



— modes of, i. 602 et set]. 



— of pollen-grain, ii. 407. 



— thermal constants, correction, i. 558, 561. 

 Gesoeracefe, ii. 575. 771. 



— buds on leaf-cuttings, ii. 43. 



— cotyledons, i. 622. 



— nectaries, ii. 174. 



— propagation by leaf-cut tings, ii. 41. 



— propagation of hybrids, ii. 556. 



— scarlet flowers in, ii, 196. 

 Geum, hybrids, ii. 558, 585. 



— mite-galls, ii. 529. 



Geum coccineum, autogamy, ii. 3S1. 

 Gemu macrophyllum, mite-galls, ii. 529. 

 Geum montanum, &c., autogamy, ii. 381. 



distribution of seses, ii. 298. 



flowers, sexual conditions, ii. 303. 



plumed achenes, ii. 858. 



Geum reptans, runner, i. 664. 

 Geum rivale, autogamy, ii. 390. 



protection of pollen, ii. 118. 



Geum urbanum, elevation and coloration, 

 ii. 511. 



hooked style, ii. 873. 



undershrub. i. 715. 



Giant Puff-ball. See Lycoperdon Qiganteum. 

 GUea, corolla and autogamy, ii. 367. 



— seed mucilage, i. 615. 



Gilea tricolor, and frost, ii. 407. 



Gills, of Agaricineaa, ii. 689. 



Ginger. See Zingiber. 



Gingko, compared to oviparous animal, ii. 450. 



— dicecious, ii. 299. 

 Gingko bUoba, i. 633: ii. 726. 



at Vienna, female graft on male tree, 



ii. 572. 



branch and young fruit, ii. 443. 



defoliation rapid, i. 361. 



embryo detachment, ii. 480. 



flowering at Kew, ii. 474. 



seed-coat, ii. 439. 



seeds, ii. 440. 



venation, i. 635. 



Girder, form of mechanical tissue, i. 727, 728. 

 Girders, fused into tubes, i. 730- 



— secondary, i. 731. 



Glacial epoch, supposed cause, ii. 909. 



Glacier-fleas. See Poduras. 



Glacier Pink. See Dianthus glacialis. 



Glaciers, seeds blown on to, ii. 861. 



Gladiolus, ii. 734. 



— s-bees and pollen, ii. 247. 



— cross-fertilization, ii. 304. 



— equitant leaves, i. 336. 



— nectary, ii. 176. 



— nectary concealment, ii. 181. 



— pollen deposition, ii. 278. 



— propagation, ii. 556. 



— ternary hybridization, ii. 560. 

 Gladiolus segetum, hermaphrodite and pis- 



tiUate flowers, ii. 297. 



stigma, ii. 279, 282. 



Gland, of Drosera, i. 144, 145. 



— of Sarracenia pitcher, i. 126. 150- 

 Gland-cells, in Nepenthes, i. 135. 



of Drosera. behaviour when stimulated, 



i. 147. 

 Gland-Uke organs, water imbibing, i. 156. 

 Glands, and fniit protection, ii. 447. 



— behaviour in Pinguicula vulgaris, i. 141. 



— in leaf of Dioniea,. i. 149. 



— of Aldrovandia. i. 150. 153. 



— of Drosophyllum leaf, i. 154. 



— protective secretory, ii. 234. 



— secretory, gradations in differentiation, i. 



157. 



Glands, stalked, of Bartsia, i. 139, 



— viscid, double function of, i. 156. 



— water-absorbing, of Alpine Roses, i. 232. 

 Glandular hairs, classiticatory value, ii. 564. 

 Glauber's salts, i. 50. 



Glaucium, flower shape, ii. 107. 



Glaucium comiculatum, .Sc, recurrent open- 

 ing, ii. 213. 



Glaucium luteum, cross-fertilization, ii. 301. 



protogynous. ii. 310. 



Glaui, morphology of flower, ii. 771. 



Glaus maritima, ovary, ii. 76, 79. 



Gleba, of Gasteromycetes, ii. 689. 



Glechoma, distribution of sexes, ii. 293. 



Glechoma hederacea, nmner, i. 664. 



Gleditschia. and Acer, struggle for existence, 

 ii. 515. 



— reserve-buds, ii. 31. 



— spines, i. 433. 



Gleditschia Sinensis, scent, ii. 202. 

 Gleditschia triacanthos, scent, ii. 202. 209. 

 Gleditschias, American, leaf, diurual posi- 

 tions, X. 534. 



— leaf movements, i. 338. 

 Gleichenia, ii. 707, 703. 



— buds on frond, ii. 39. 



Gleichenia alpina, sporogenous pinna, ii. 11. 



Globba, ii. 736. 



Globe-animalcule, oldname for Volvox.which 



see. 

 Globe-flower. See Trollius. 

 Globoid, i. 457- 

 Globularia, dehiscence of pollfu-sacs, ii 89, 



92,124. 



— protogynous, ii. 312. 



Globularia cordifolia, procumbent stem. i. 

 661, 662. 



stamen, ii. 91. 



Globulariacese, ii. 771. 



Gloeocapsa, appearance and occurrence, IL 

 621. 



— habit, i. 587. 



Gloeocapsa sanguinea, reproduction. PI. I., i. 



575. 

 Gloiotrichia ecbinulata. ii. 622. 

 Gloriosa superba, tendrils, i. 692. 

 Glow-worm, luminosity. L 386. 

 Gloxinia, bees and pollen, ii. 247. 



— velvety appearance, i. 320. 

 Glucose, from tannin, i. 507. 

 Glucosides, conducting tissues for. i. 479. 



— decomposition, i. 463, 465. 



— function, i. 462. 



— poisonous, of unripe fruit, ii, 446. 

 Glume, flowering, ii. 746. 

 Glumes, anthocyanin in, i. 522. 

 Glumiflorae, characteristics, ii. 745. 

 Glutamin, i. 464. 



Glutin, composition, i. 458. 



Glyceria, orientation of unfolding leaves, i. 



350. 

 Glyceria aquatica, &c., and Ustilago, ii, 675. 

 Glyceria fluitans, habit and habitat, ii. 502. 

 Glyceria spectabilis, protection of stomata 



from moisture, i. 294, 295. 

 Glyceride, of a fatty acid, in cuticle, i. 309. 

 Glycerine, production, i. 507. 

 Glycine Chinensis, scent, ii. 202. 



supports at Miramare. i. 630. 



GlycocoU, absorption of, i. 104. 

 Glycyrrhiza, leaf, diurnal positions, i. 534- 

 Glycyrrhiza echinata, fnut protection, ii. 442. 

 Glycyrrhiza glabra, tubercles on root-fibres, 



ii. 521. 

 Gnapbalimn, i. 4S9. 



Gnaphalium alpinum, distribution of sexes, 

 u. 299. 



&c., parthenogenesis, ii. 465. 



partbenogeuetic fruit, ii. 84. 



Gnaphalium carpaticum, ii. 465. 



distribution of sexes, ii. 299. 



Gnaphalium dioicum. ii. 465. 



distribution of sexes, ii. 299. 



Gnaphalium Leontopodiiun, i. 315. 



coloured bracts, ii. 183. 



dichogamy, ii. 312. 



distribution of sexes, ii. 297. 



