95G 



INDEX. 



Impatiens parviflora, inequality uf leaves, 

 and use, i. 422. 



leaf-mosaic, i. 411. 



Impatieos tricomis, cross-fertilization, ii. 306. 



protection of honey, ii. 232. 



stem, i. 656. 



Imperfect flowers, ii. 294. 



Imprisonment of insects by flowers, ii. 164. 



Incmatment, type of commuDity, ii. 889, 



894. 

 Indehiscent dry fruit, Ü. 429. 

 Indian Banyans, i. 758. 



— Ocean, reddened by Trichodesmium, i. 389. 

 Indian Shot. See Canna. 

 Indiarrubber, latex of Ficua, i. 470. 

 India-rubber Fig. See Ficua f.lantica. 

 Indigofera, explosive flowers, Ü. 267. 



— freezing, i. 546. 



— leaf, diurnal positions, i. 534. 

 Individual, meaning in Botany, ii. 5. 



— development, and phyllogeny. ii. 608. 

 Indol, nature of, ii. 199. 



Indoloid scent, ii. 199, 207. 



Indumenta, of hybrids, characteristics, ü. 



5G4. 

 Indumentum, or investment, ii, 5G4. 

 Indusium, nature of, ii. 13, 



— of Fern sorus, ii. 705. 



Infertility, of plants under cultivation, ii. 



402. 

 Inflorescence, application of term, i. 641. 



— detachment, i. 748. 



— nature of, i. 737. 



— sorts of, numerical relations, i. 745. 



— sympathetic movement of various parts. 



i. 744. 

 Inflorescences, and nocturnal radiation, i. 

 530. 



— of Balanophora, resemblance to Fungi, i. 



190. 



— periodic bending, i. 531 ; ii. 120. 

 Infusoria, derivation of term, i. 21. 



— prey of Utricularia montana, i. 123. 

 Inga, pollen-chambers, ii. 90. 

 Innovatio, i. 596. 



Innsbruck, floral clock for, ii. 216. 

 Inorganic subsLances, absorption of. i. 60. 

 Insectivorous plants, and pepsin, i. 465. 



habitat in relation to supply of nitrogen, 



i. 158. 



with pitchers or ascidia, i. 123. 



Insect-galls, ii. 527 et seq. 

 In sect- visitors of Asclepiads, ii. 258. 

 Insect visits and duration of flowers, ii. 214. 

 Insects, absence of, and vegetative ofiEshoots, 

 ii. 459. 



— and anther-lids, ii. 129. 



— and colour sense, ii. 195. 



— and mixed pollination, ii. 403. 



— and plants, mutual interdependence, i. 



255. 



— and pollen-sprinkling (lowers, ii. 271. 



— and pollination, i. 461; ii. 95. 



— and scents, ii. 207. 



— arrangements for reception, ii. 226. 227. 



— aa hosts of parasitic Fungi, i. 168. 



— imprisonment by flowers, ii. 163, 164. 



— in Alps, ii. 400. 



— method of visiting flowers, i. 742. 



— olfactory organs, ii. 204. 



— parasitic, and stamens, ii. 87. 



— pollen-collecting and devouring, ii. 133. 



— probosces and honey, ii. 179. 



— smearing with pollen, ii. 245. 



— structural correlation to flowers, ii. 152. 

 Insolation and elevation, i. 525. 

 Instinct, examples of operation of. i. 53. 

 Institutiones Rei Herbarise, by Toumefort, 



ii. 601. 

 Integument, of Gymnosperm ovule, ii. 438, 



— of ovule, i. 644 : ii. 72, 81, 84. 



— of seed, in Cuscuta, i. 173. 

 Interceilullar spaces, ice in, i. 540. 

 Interchange, of materials between root-hairs 



and substratum, i. 88. 

 Internode, hairs on, in Stellaria media, i. 227. 



— of stem, i. 396, 658. 



lutL-rnodes, twisting of, i. 417. 

 Intine, of pollen-grain, ii. 100. 

 Introrse, of anthers, U. 95. 

 Intussusception, i. 44. 

 Inula, decurrent leaves, i. 336. 



— liairinesa, i. 317. 



— hermaphrodite and pistillate fluwt-rs, ü. 



296. 



— hybridization, ii. 316. 



Inida viscoaa, varnish-like coating, i. 312. 

 Invertin, enzyme of yeast, i. 465. 

 Investments, of plants, ii. 564. 

 Involucres, and nocturnal radiation, i. 530. 

 ludine. effect on plants, i. 73. 



— in plants, i. 66, 68, 71. 

 Ipecacuanha plant, ii. 764. 

 Ipomiea, pollen-grain, ii. 100. 

 IpoTuaea muricata, prickles, &c., i. 687, 

 Ipomaja purpurea, autogamy, ii. 336. 

 opening of flower, i. 212. 



Iriartea. geographical distribution, ii. 740. 

 Iridacese, autogamy in, ii. 372. 



— characteristics, ii. 734. 



— heterostylism, ii. 398. 

 IrideEB, equitant leaves, i. 336. 



— hybrids among, ii. 583. 

 Iridescence, of Pbyllocladia, i. 388. 

 Iris, extrorse anthers, ii. 95. 



— germination, i. 604. 



— grafting experiments at Innsbruck, ii 



571. 



— green cells, arrangement, i. 471. 



— humble-bees and pollen, ii. 247. 



— hybridization and flower colours, ii. 568. 



— nectary, ii. 176. 



— leaf twist, i. 429. 



~ pollen deposition, ii. 280. 



— pollen -grains, ii. 99. 



— protection of pollen from wet, ii. 111. 



— stigma, i. 645 ; ii. 729. 



Iris arenaria, opening and closing, ii. 212. 

 Iris Florentiua and I. Kochii, ii. 568, 572. 

 Iris Germanica and I. sambuciua, colour of 



flowers and hybrid, ii. 568. 



flower, ii. 246. 



wax on leaves, i. 192. 



Iris Kochii, graft on I. Florentiua, ii. 572. 



Iris odoratissima, scent, ii. 201. 



Iris pallida, wax on leaves, i. 292. 



Iris puraila, variability of floral colour, ii. 



569. 



wax on leaves, i. 292. 



Iris sibirica, sheltering of pollen, ii. 109. 

 Iris variegata, PI. VI. 

 Iron, i. 73. 83, 258, 261. 



— in chlorophyll, i. 371. 



— oxide of, in dust, i. 81. 



— relation to chlorophyll, i. 67. 



— salts, i. 274. 



— storing by Bacteria, ii. 624. 



Iron hydroxide. accumulation through plants. 



i. 2Ö1. 

 Iron-ore, accumulation through plants, i. 



261. 

 Irrigation of rain-wat«r, i. 97. 

 Ismene, scent, ii. 201. 

 Isoetaceffi, descriptive details, ii. 716. 

 Isoetes, cambium-like zone, ii. 717. 

 Isoetea lacustris, whole plant, &c., ii. 716. 

 laogametes, of Chlorochytrium, ii. 637. 



— of Gonium, ii, 631. 

 Isoloma, hybrids, ii. 575. 

 Isoplanogametes, of Chlorophycere, ii. 628. 



— typical conjugation in Stephanosphsera, 



ii. 632. 

 Isopyrum, movements of stamens, ii. 250. 



— nectaries, ii. 179. 



Isopyrum thalictroides.leafandillumination, 

 i. 286. 



protection of pollen, ii. 120. 



Istria, Calluna vulgaris on coast, i. 526. 

 Istria. flora of, i. 306. 



— interior, absence of heaths, i. 307. 



— Spartium scoparium in, ii. 330. 

 Italian flora, general grayness of, ii. 317. 

 Ivy. See Hedera. 



Ivy-leaved Duckweed. See Lemna trisidca. 



Jack-fruit. See Artocarpus integrifolia. 

 Jacquin. grafting experiment with Ginkgo, 



ii. 572. 

 Japanese and artificial crossing, ii. 555. 



— Maidenhair Tree. See Ginkgo biloba. 



— Paper Mulberry. See ßroussonetia papy- 



ri/era. 



— Saxifrage. See Saxi/raga sarmcntosa. 

 Jasminacc«}, ii. 771. 



Jasniinum, freezing, i. 546. 



Jaaminum nudiflorum, weaving stem, i. 



672. 

 Jasminum ofQcinale, scent, ü. 200, 

 Jatropba, stinging hairs, i. 441. 

 Jew's-ear Fungus. See Auricularia aambU' 



cina. 

 Judas Tree. See Cercis SHiquaatrunu 

 Juglans, bud-scales, i. 626. 



— cotyledons, i. 608. 



— fertilization porogamic, ii. 413. 



— fossil, i. 636. 



— mite-galls, ii. 529. 



— monoecious, ii. 297. 



— pollen -storing and dispersion, ii. 94, 148. 



— pollination, ii. 133. 



— protection of pollen, ii. 119, 



— prot-ogynovis. ii. 313. 



Juglans regia, anthocyanin in buds, i. 484. 



inflorescences, i. 742. 



pollination, i. 741. 



seed protection, ii. 446. 



stamen, ii. 87. 



— — unfolding leaves, i. 349. 



vernation, i. 350. 



Juliflorae, of Braun, ii. 605. 



"Jumping Bean", ii. 844. 



Juncacea?, distinctive characters, ü. 730. 



— from chalk, ii. 613. 

 Juncus, cleistogamy, ii. 392. 



— germination, i. 604. 



— hybrids in, ii. 583. 



— pollination, ii. 133. 



— protogynous, ii. 312. 



— switch-plants, i. 330. 



— venation, i. 634. 



Juncus alpinus, &.C., and galls of Livia Jun- 

 corum. ii. 547, 



bulbils, ii. 454. 



Juucus bufonius, cleistogamy, ü. 394. 



Juncus castaneus. anthocyanin, i. 522. 



Juncus diffusus, hybrid of J. effuaus x J. 

 glaucus, ii. 586. 



Juncus glaucus, mechanical tissue arrange- 

 ment, i. 731. 



Juncus Jacquinii, anthocyanin, i. 522. 



pollen tetrads, ii. 97. 



Juncus lamprocarpus, habit and habitat, ii. 

 502. 



Juncus monanthos, &c., favourite soil, iL 496. 



Juncus supinus. bulbils, ii. 454. 



habit and habitat, ii. 502. 



Juncus trifldus, anthocyanin. i. 522. 



habitat, i. 113. 



Jungemiannia, various species, shoots of. 

 i. 591. 



Jungerinannia polyanthos. structure, i. 590. 



Jungermanniaceaj, description, ii. 698. 



Junghubn, discovers several Balanophorea 

 in Java, views concerning, i. 190. 



Juniper-Mistletoe. See Viscum Oxycedri. 



Juniperua, ii. 725. 



— and Gymnosporangium, ii. 686. 



— dicecious, ii. 299. 



— egg-cells, ii. 419. 



— embryo development, ii. 438. 



— fertilization, ii. 420. 



— fleshy cone, ii. 440. 



— mutilation by ruminants, ii 515. 



— pollen-sacs, ii. 89. 



— pollen storing and dispersion, ii. 146. 



— protection of ovules, ii. 72. 



— protection of pollen, ii. 117. 



— specific value of leaf anatomy, ii. 565. 



