INDKX. 



933 



Bignoniacem, peculiarity of climbing, i. 706. 



— scarlet flowers iu, ii. 196. 



Bilberry. See Vaccinium vlif/inosum, Vac- 



cinitim myrtUlus. 

 Billbergia, protective wat«r-receptaclcs, ii. 



234. 

 Biudweeil. See Convolvulus. 

 Bindweeds, S. Europe, silkiuesa. i. 320. 

 BiolngicaliuiportanceofCbIorophyceie,ii.627. 

 Biorbiza aptera, gall on oak-root, Ii. 541. 

 Birch. See Bttula. 

 Bircbcs and Fira, struggle for existence, ii. 



514. 

 Birch-tree, bulk compared to voiumo of solid 



and gaseous nutritiTe space, i. 259. 

 Bird-lime, from Viscum album, i. 329. 

 Birds, dispersal of planta, i. 205, 463 ; if. 863. 

 " Bird's eyes", cause of, ii. 35. 

 Bird'8-foot Trefoil. See Lotus. 

 BinVs-iiest Orchis. See Ntottia Nidus-avU. 

 Birthwort. See Aristoloehia Clematitis. 

 Biscutella Icevigata, ash of. i. 69. 

 Bistort. See Polygonum Bistorta. 

 Bitter Orange. See Citrus Aurantium. 

 Bitter-street. See Solanum Duicamara 

 Bitter Vetch. See Orobus. 

 Bixa Orellaua, flower-bud, ii. 776. 



flowers aud fruit, ii. 442, 444. 



Bizzaria» hybrid orange, it 509. 



Black Forest, Silver Firs with Mistletoe, i. 



205. 

 Black Grouse. See Tftrao tttrix. 

 Black Pine district, Wiener Wald, Mistletoe 



on Corsican Pine, i. 205. 

 Black Poplar. See Populus nigra. 

 Blackwellia, pollen- grains, ii. 99. 

 Bladder-campion. See Silent inflata. 

 " Bladder-plums ", cause of, ii. 524. 

 Bladder-senna. See Colutea arborescens. 

 Bladders, of Sea-wracks, Trapa, i. 425. 



— of Utricularise, size, shape, &c., i.l21. 

 Bladderworts. See Utricularits. 

 Blastopbaga Brasiliensis and Ficus, ii. 162. 

 Blastophaga grossonim aud Ficus Carica, ii. 



161. 



and gall-flowers of Ficus Carica, ii. 640. 



fertilization of Ficus, ii. 157. 



Blechnum, fronds, ii. 12. 



— protection of sporangia, ii. 13. 



— sonis and indusium, ii. 706. 

 Blechnum Spicant, dimorphic fronds. iL 476. 



situation of stomata, i. 293. 



"Blendlings", result of crossingof "races", 



11581. 

 Blood, and mould cells, i. 507. 



— nutrient medium for bacteria, i. 162. 

 Blood-corpuscles, red. ii. 624. 

 "Blood-portent", ii. 623. 



Bloodwort. See Sanguinaria Canadefisis. 

 Bloom, nature of, i. 291, 462. 

 Blossom, nature of, if. 71. 

 Blossoming, and altitude, t. 526. 



— and geographical position, L 565. 



— comparative table, i. 566. 



— of sea, I. 389. 



— order of, i. 739. 



— twice in one year, i. 564. 



Blue, colour of spring flowers, if, 194. 



— true colour of sea-water, i. 339. 

 Blue Moulds, if. 677. 



Blue Mountains, Jamaica, abundance of 

 Ferns, Mosses, and Liverworts, if. 457. 



Bluenesa of water, explanation, i. 389. 



Blue pigment, chlorophyll protecting, i. 302. 



Bocconfa, stamen-tilameots, ii. 88, 183. 



Bocconia Japonica. pollen discharge, ii. 145. 



Bock. Hleronymus (1498-1554), i. 4. 



and jiropagation of Ferns, iL 8. 



herbal of. i. 5. 



Boebmeria. cause of white spot« on leaves 

 L235. 



Boebmeria nirea, bast-cells, i. 725. 



Bog-bean. See Jkfenyanthts tri/oliata. 



Bog-moss. Bee Sphagnum. 



Bog-rushes. See Schomus. 



Bog-whortleberry. See Vaccinium uligi- 

 noaum. 



Bolbophyllum Beccarii, iiaturo of scent, Ii. 



199. 

 Bolbophyllum minutissimum, main features 

 of, i. 299. 



tuber, surface view aud section, I. 300. 



Bolbophyllum Odoardi, tubers, leaves, >. 



300. 

 Boletus edulis. PI. XIV., ii. 688. 



appearance, ff. 491. 



resiiiratiou experiments, i. 498. 



Boletus sanguineus, poisonous, i. 491. 

 Bombax, hairy seeds, if. 855. 



— prickles, f. 433. 



Bombus lucorum, pollination of Kpipogium, 



ii. 225, 257. 

 Bonapartea, leaf-teeth and termination, i. 



433. 

 Bonds of union, chemical, i. 453, 4&4. 

 Bonifacius. St., i. 539. 

 Boodlea, tballus, ii. 646. 

 BoraglnocesB, if. 771. 



— autogamy in, ii. 367, 378. 



— cross-fertilization in, ii. 301, 222. 



— dichogamy in, ii. 311. 



— floral change of colour, ii. 191, 194. 



— heterostyly in. ii. 302. 398. 



— hybrids few among, ii. 585. 



— nectaries, ii. 174, 181. 



— pollen and probosces of insects, U. 248. 



— pollen-grains, ii. 97, 99. 



— pollen-sprinkling in, ii. 275. 



— protection of pollen, ii. 118. 



— protogyny in, ii. 310. 



— venation, i. 630. 



— why named, pointed bristles, i. 441. 

 Borago, cotyledon bristles, i. 623. 



— nectary concealment, ii. 181. 



— protandrous, ii. 311. 



Borago officinalifl, colour-contrast of flotvers, 

 ii. 189. 



cotyledons, i. 621. 



flower, ii. 275. 



pollen -grain 3, ii. 98. 



pollen-sprinkling apparatus, ii. 275. 



Borassus. geographical distribution, ii. 740. 

 Borassus flabelliformis. i. PI. VIII. 



height, i. 712. 



Bordered pits, nature and function, i. 277. 



structure, i. 45. 



Bomet and symbiosis in lichens, il. 692. 

 Botanists and general principles of classifica- 

 tion, ii. 607. 

 Botany, descriptive, scope of, i. 15- 



— discussion of terminology, ii. 4. 



— German fathers of, i. 4. 



— "the loveliest of sciences", i. 6. 

 Botrychium, frond, ii. 709. 



— spore-dispersal, ii. 814. 

 Botrychium lanceolatum, ii. 707. 



dimorphic fronds, ii. 11. 



sporangia, ii. 12. 



Botrychium Lunaria, habitat, i. 112. 

 Botrydiacea), ii. 642. 

 Botrydium, cilia of, i. 29. 



— life-history, ii. 642. 



— reproduction, if. 482. 



Botrydium granulatum, habitat, if. 642. 



Botryococcus, life-cycle, ii. 636. 



Botrytis, fermentative action, 1. 508. 



Botrytis cinerea. 1. 263. 



Bottle-gourd. See Lagtnaria. 



Bouchea colutcoides, sticky foliage, fi. 237. 



Boundary- line, absence of, between plante 



and animals, i. 54. 

 Bovenfo, Australia, it. 720. 

 Bovfsta, ff. 690. 

 Boyle's law. f. 571. 

 Brachydodromus. venatfon, 1. 630. 

 Brachypo4lium, pollination, ii. 142. 

 Brachjrpodfum sylvaticum. arched leaf, f. 

 429. 



venation, i. 634. 



Bracken Fern. See Pleris aquHina. 

 Bract, application of term. 1. 641. 



— colour, ii. 183, 187. 



— honey-protection by. ii. 238. 



— naturo of, 1. 737 



Bract, secretion of honey, ii. 173. 



Bractea. See ISract. 



Bracteolcs, accessory in fruit-formation, II, 



433. 

 Bract-scale, of Abies pectlnata, &c., if. 441, 



721. 

 Bradypiis tridactylus, and Triuhophilus, iL 



627. 

 Bramble, See Ituhtm /rutirn.fu.9. 

 Branch, curvature and light, i. 416. 



— direction and light, f. 414. 



— form and position of transpiring, i. 325. 



— long and short. 1. 597, 650. 



— nature of, i. 591. 



— of Pinna Pumilio, if. 722. 

 Branching and fuflorescence, f. 749. 

 Branch -tendrils, morphology, f. 693, 694. 

 Brassica, siliQuas, ii. 431. 



Brassica alba, unequal cotyledons, i. 622. 

 Brassica oleracea, epiphyllous buds, ii. 43. 



root-galls, ii. 521. 



stomata, i. 28ü. 



was on leaves, f. 292, 



Brassica Rapa rapacea, root, f. 760. 

 BrauD, Alexander, reclassification of Mono» 

 chlamydeae, ii. 616. 



system of classification, ii. 605. 



Braya alpina, autogamy, ii. 335. 



guides to honey, ii. 248. 



Bread-fruit. See Artocarpus incisa. 

 Breakback, use of terra, ii, 570. 

 "Breaking", from roots, ii. 27. 

 Breathing and living, synonymous, i. 493, 

 Bristle Ferns. See HymenopkyVacae, 

 Bristles, i. 439. 



— barbed structure, f, 440. 



— for retention of salt incrustations, i. 237. 



— of Aldrovandia leaf, i. 152. 



— of Dionaja leaf, i, 150. 



— stinging, structure and function, i. 441. 

 Briza maxima, seed-dispersal, ii. 854. 

 Briza media, anthocyanin in glumes, i. 522. 

 pollination, ii. 142. 



Broad-bean. See Vicia Fuba. 

 Brome-grass. See Bromus. 



False. See Br achy podium. 



Bromeliacese, centripetJil inflorescences, L 

 738. 



— coloured bracts in, ii. 184. 



— distinctive characters, ff. 734. 



— epiphytic, i. 77. 106. 



— furfuraceous appearance, f. 324. 



— geographical distribution, ii. 734. 



— habitat, i. 438, 



— organic remains in cisterns of, i. 242. 



— pollen-grains, ii. 102. 



— scarlet flowers in, ii. 196. 



— tropical epiphytic, thick cuticle, i. 309. 



— water-receptacles, i. 156. 



absorptive cells, i. 231. 



Bromelieaj, characteristics, ii. 734. 

 Bromine, in marine plants, 1. 68. 

 Bromus, and cluster-galls, ii. 547. 

 Brongniart, ii. 603. 



Brood-bodies, and constancy of form, ii. 594. 



hybrids pen>etuated by, in Ro.^es. ii. 555. 



importance for propagation, ii. 70. 



in ovule, resemble normal embryos, fL 



469. 



nature of, ff. 6. 



of ÄIoBses. ii. 702. 



possible origin from ooplaat. If. 467. 



potential, if. 46. 



Broom. Seo Spartium scoparium. 

 Broom-rape. Seo Orobanche. 

 BrousBonetfa jiapyrifera, dfoecious. ii. 299. 



ejection of pollen. Sec. if. 137- 



normal and sucker feaves, ii. 515. 



stigma, ff. 251. 



twig, i. 418. 



Brown, on cell, t. 14. 



Brownca coccfnea, &c., scarlet flower, ii. 196. 

 Bnigmansia, Borneo and Java, flowers, L 

 202. 



— geographical distribution, I. 204. 



— pollen-grain, if. 98, 102. 



— protection of pollen, if. 118. 



