INDEX. 



933 



Bignoniaceie, peculiarity of climbing, i. 706. 



— scarlet flowers in, ii. 196. 



Bilberry. See Vacciniwm •uliginoaum, Vao- 



cinium myrtillua. 

 Billbergia, protective water-receptacles, 11. 



234. 

 Bindweed. See Oonvolmtltis. 

 Bindweeds, S. Europe, silkluess, 1. 320. 

 Biological importance of Chlorophyceiie, 11.627. 

 Biorhiza aptera, gall on oak-root, 11. 541. 

 Birch. See Betula. 

 Birches and Firs, struggle for existence, li. 



514. 

 Birch-tree, bulk compared to volume of solid 



and gaseous nutritive space, i. 259. 

 Bird-lime, from Viscum album, 1. 329. 

 Birds, dispersal of plants, i. 205, 463 ; ii. 863. 

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

 Bird's-foot Trefoil. See Lotus. 

 Bird's-nest Orchis. See Neottia Nidus-avis. 

 Bii-thwort. See Aristolockia Clematitis. 

 Biscutella lievigata, ash of, i. 69. 

 Bistort. See Polygonum Bistorta. 

 Bitter Orange. See Citrits Aurantium. 

 Bitter-sweet. See Solarium Dulcamara 

 Bitter Vetch. See Orobus, 

 Bixa Orellana, flower-bud, li. 776. 



flowers and fruit, 11. 442, 444. 



Bizzaria, hybrid orange, ii. 569. 



Black Forest, Silver Firs with Mistletoe, 1. 



205. 

 Black Grouse. See Tetrao tetrix. 

 Black Pine district, Wiener "Wald, Mistletoe 



on Corsican Pine, i. 205. 

 Black Poplar. See Populu^s nigra. 

 Blackwellia, pollen-grains, 11. 99. 

 Bladder-campion. See Silene inflata. 

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

 Bladder-senna. See Colutea arborescens. 

 Bladders, of Sea-wracks, Trapa, 1. 425. 



— of TJtriculariae, size, shape, &c., i. 121. 

 Bladderworts. See UtricularicB. 

 Blastophaga Brasillensis and Flcus, li. 162. 

 Blastophaga grossorum and Ficus Carica, ii. 



161. 



and gall-flowers of Ficus Oarica, ii. 540, 



fertilization of Ficus, ii. 157. 



Blechnum, fronds, 11. 12. 



— protection of sporangia, ii. 13. 



— sorus and Indusium, ii. 706. 

 Blechnum Spicant, dimorphic fronds, ii. 476. 



situation of stomata, i. 293. 



"Blendlings", result of crossingof "races", 



11.581. 

 Blood, and mould cells, i. 507. 



— nutrient medium for bacteria, 1. 162. 

 Blood-corpuscles, red, ii. 624. 

 "Blood-portent", ii. 623. 



Bloodwort. See Sanguincuria CanadeTisis. 

 Bloom, nature of, i. 291, 462. 

 Blossom, nature of, 11. 71. 

 Blossoming, and altitude, 1. 526. 



— and geographical position, i. 565.- 



— comparative table, i. 566. 



— of sea, 1. 389. 

 ~ order of, i. 739. 



— twice in one year, 1. 564. 



Blue, colour of spring flowers, ii. 194. 



— true colour of sea-water, 1. 389. 

 Blue Moulds, ii. 677. 



Blue Mountains, Jamaica, abundance of 

 Ferns, Mosses, and Liverworts, ii. 457. 



Blueness of water, explanation, i. 389. 



Blue pigment, chlorophyll protecting, L 392. 



Bocconia, stamen-fllaments, 11. 88, 183. 



Bocconia Japonlca, pollen discharge, li. 145. 



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



and propagation of Ferns, 11. 8. 



herbal of, 1. 5. 



Boehmeria, cause of white spots on leaves 

 i. 285. 



Boehmeria nlvea, bast-cells, 1. 725. 



Bog-bean. See Menya/athes trifoUata. 



Bog-moss. See SpTiagnum. 



Bog-rushes. See Schcenus. 



Bog-whortleberry. See Vaccmi/wm uligi- 



Bolbophyllum Beccarii, nature of scent, ii. 



199. 

 Bolbophyllum minutieaimum, main features 

 of, i. 299. 



tuber, surface view and section, 1. 300. 



Bolbophyllum Odoardi, tubers, leaves, i. 



300. 

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



appearance, ii. 491. 



respiration experiments, i. 498. 



Boletus sanguineus, poisonous, i. 491. 

 Bombax, hairy seeds, ii. 856. 



— prickles, i, 433. 



BombuB lucorum, poUinatlon of Epipogium, 



11. 225, 257. 

 Bonapartea, leaf-teeth and termination, i. 



438. 

 Bonds of union, chemical, 1. 453, 454. 

 Bonifacius, St., i. 539. 

 Boodlea, thallus, iL 646. 

 Boraginacese, ii. 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, ii. 248. 



— pollen-graina, li. 97, 99. 



— pollen-sprinkling In, ii. 275. 



— protection of pollen, 11. 118. 



— protogyny in, ii. 310. 



— venation, 1. 630. 



— why named, pointed bristles, 1. 441. 

 Borago, cotyledon bristles, i. 623. 



— nectary concealment, ii. 181. 



— protandrous, ii. 311. 



Borago officinalis, colour-contrast of flowers, 

 ii. 189. 



cotyledons, i. 621. 



flower, ii. 275. 



pollen-grains, li. 98. 



pollen-sprinkling apparatus, ii. 275. 



Borassus, geographical distribution, ii. 740. 

 Borassus flabelliformis, 1. Fl. VIII. 



height, 1. 712. 



Bordered pits, nature and function, 1. 277. 



structure, 1. 45. 



Bornet and symbiosis in lichens, ii. 692. 

 Botanists and general principles of classlflca- 



tion, ii. 607. 

 Botany, descriptive, scope of, 1. 15. 



— discussion of terminology, ii. 4. 



— German fathers of, 1. 4. 



— " the loveliest of sciences ", i. 6. 

 Botrychium, frond, ii. 709. 



— spore-dispersal, ii. 814. 

 Botrychium lanceolatum, ii. 707. 



dimorphic fronds, ii. 11. 



sporangia, 11. 12. 



Botrychium Lunaria, habitat, i, 112. 

 Botrydiacese, 11. 642. 

 Botrydium, cilia of, i. 29. 



— life-history, ii. 642. 



— reproduction, 11. 482. 

 Botrydium granidatum, habitat, 11. 642. 

 Botryococcus, life-cycle, ii. 636. 

 Botrytis, fermentative action, 1. 508. 

 Botrytis cinerea, 1. 263. 

 Bottle-gourd. See Lagmaria. 

 Bouchea coluteoides, sticky foliage, 11. 237. 

 Boundary-Hue, absence of, between plants 



and animals, i. 54. 

 Bovenia, Australia, 11. 720. 

 Bovista, 11. 690. 

 Boyle's law, i. 571. 

 Brachydodromus, venation, 1. 630. 

 Brachypodium, pollination, 11. 142. 

 Brachypodlum sylvatlcum, arched leaf, i. 

 429. 



venation, i. 634. 



Bracken Fern. See Pteris agvAlina. 

 Bract, application of term, i. 641. 



— colour, li. 183, 187. 



— honey-protection by, 11. 238. 



— nature of, i. 737 



Bract, secretion of honey, ii. 173. 



Bractea. See Bract. 



Bracteoles, accessory in fruit-formation, ii. 



433. 

 Bract-scale, of Abies pectinata, &c., li. 441, 



721. 

 Bradypua tridactylus, and Trichophilus, ii. 



627. 

 Bramble. See Rnbus fruticoBus. 

 Branch, curvature and light, i. 416. 



— direction and light, 1. 414, 



— form and position of transpiring, 1. 325. 



— long and short, i. 597, 650. 



— nature of, 1. 591. 



— of Finns Pumilio, ii. 722. 

 Branching and inflorescence, 1. 749. 

 Branch-tendrils, morphology, 1. 693, 694. 

 Braaszca, siliquas, ii. 431. 



Brassica alba, unequal cotyledons, 1. 622. 

 Brassica oleracea, eplphyllous buds, ii. 43. 



root-galls, ii. 521. 



stomata, 1. 280. 



wax on 1 



Brassica Bapa rapacea, root, i. 760. 

 Braun, Alexander, reclassification of Mono- 

 chlamydese, ii. 616. 



system of classification, 11. 605. 



Braya alpina, autogamy, ii. 335. 



guides to honey, ii. 248. 



Bread-fruit. See Artoca/rpus incisa. 

 Break back, use of term, ii. 570. 

 "Breaking", from roots, ii. 27. 

 Breathing and living, synonymous, i. 493. 

 Bristle Ferns. See Hymenoph/yllacecB. 

 Bristles, i. 439- 



— barbed atructure, i. 440. 



— for retention of salt Incrustations, i. 237. 



— of Aldrovandia leaf, 1. 152. 



— of DiouEea leaf, i. 150. 



— stinging, atructure and function, i. 441. 

 Briza maxima, aeed-disperaal, ii. 854. 

 Briza media, anthocyanin in glumes, i. 522. 

 pollination, 11. 142. 



Broad-bean. See Vicia Faba. 

 Brome-grass. See Bromus. 



Falae. See BracJt/ypodium. 



Bromeliacese, centripetal inflorescences, t 

 738. 



— coloured bracts in, ii. 184. 



— distinctive characters, ii. 734, 



— epiphytic, i. 77, 106, 



— furfuraceoua appearance, 1, 324. 



— geographical distribution, ii, 734, 

 ~ habitat, 1. 438, 



— organic remains in cisterns of, i. 242. 



— pollen-grains, ii, 102. 



— scarlet flowers in, ii. 196. 



— tropical epiphytic, thick cuticle, 1, 309. 



— water-receptacles, i. 156, 



absorptive cells, i. 231. 



BromeliesB, characteristics, li. 734. 

 Bromine, in marine plants, 1. 68, 

 Bromus, and cluster-galls, 11. 547. 

 Brongniart, 11. 603. 



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



hybrids perpetuated by, in Roses, ii. 555. 



importance for propagation, ii. 70. 



in ovule, resemble normal embryos, ii. 



469, 



nature of, ii, 6, 



of Mosaea, li. 702. 



poasible origin from ooplast, ii, 467. 



potential, ii, 46, 



Broom. See Spartium scoparium. 

 Broom-rape. See Orobanche. 

 Broussonetia papyrifera, dioecious, ii. 299. 



ejection of pollen, &c., ii. 137. 



normal and sucker leaves, 11. 515. 



stigma, 11. 251. 



— — twig, i. 418. 

 Brown, on cell, i. 14. 



Brownea cocclnea, &c., scarlet flower, ii. 196. 

 Brugmansia, Borneo and Java, flowers, i. 

 202. 



— geographical distribution, i. 204. 



— pollen-grain, 11, 98, 102. 



— protection of pollen, 11. 118. 



