INDEX. 





Bignoniacese, peculiarity of climbing, i. 706. 



scarlet flowers in, ii. 196. 



Bilberry. See Vaccinium uliyinosum, Vac- 



cinium myrtillus. 

 Billbergia, protective water-receptacles, ii. 



234. 



Bindweed. See Convolvulus. 

 Bindweeds, S. Europe, silkiuess, i. 320. 

 Biological importance of Chlorophyceie, ii.627. 

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

 Birch. See Betula. 

 Birches and Firs, struggle for existence, ii. 



514. 

 Birch-tree, bulk compared to volume of solid 



and gaseous nutritive space, i. 259. 

 Bird-lime, from Viscum album, i. 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. 

 Birthwort. See Aristolochia Clematitia. 

 Biscutella laevigata, ash of, i. 69. 

 Bistort. See Polygonum Bistorta. 

 Bitter Orange. See Citrus Aurantium. 

 Bitter-sweet. See Solanum Dulcamara 

 Bitter Vetch. See Orobus. 

 Bixa Orellana, flower-bud, ii. 776. 



flowers and fruit, ii. 442, 444. 



Bizzaria, hybrid orange, ii. 569. 



Black Forest, Silver Firs with Mistletoe, i. 



205. 



Black Grouse. See Tetrao tetrix. 

 Black Pine district, Wiener Wald, Mistletoe 



on Corsican Pine, i. 205. 

 Black Poplar. See Populua nigra. 

 Blackwellia, pollen-grains, ii. 99. 

 Bladder-campion. See Silene inflata. 

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

 Bladder-senna. See Colutea arborescent. 

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



of Utriculariae, size, shape, &c., i.121. 

 Bladderworts. See Utriculariae. 

 Blastophaga Brasiliensis and Ficus, ii. 162. 

 Blastophaga grossorum and Ficus Carica, ii, 



161. 



and gall-flowers of Ficus Carica, ii. 540 



fertilization of Ficus, ii. 157. 



Blechnum, fronds, ii. 12. 



protection of sporangia, ii. 13. 



sortts and indusium, ii. 706. 

 Blechnum Spicant, dimorphic fronds, ii. 476 

 situation of stomata, i. 293. 



" Blendlings ", result of crossing of " races " 



ii. 581. 

 Blood, and mould cells, i. 507. 



nutrient medium for bacteria, i. 162. 

 Blood-corpuscles, red, ii. 624. 

 "Blood-portent", ii. 623. 



Bloodwort. See Sanguinaria Canadensis. 

 Bloom, nature of, i. 291, 462. 

 Blossom, nature of, ii. 71. 

 Blossoming, and altitude, i. 526. 



and geographical position, i. 565. 



comparative table, i. 566. 



of sea, i. 389. 



order of, i. 739. 



twice in one year, i. 564. 



Blue, colour of spring flowers, ii. 194. 



true colour of sea-water, i. 389. 

 Blue Moulds, ii. 677. 



Blue Mountains, Jamaica, abundance o 

 Ferns, Mosses, and Liverworts, ii. 457. 



Blueness of water, explanation, i. 389. 



Blue pigment, chlorophyll protecting, i. 392 



Bocconia, stamen-filaments, ii. 88, 183. 



Bocconia Japonica, pollen discharge, ii. 145 



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



and propagation of Ferns, ii. 8. 



herbal of, i. 5. 



Bcehmeria, cause of white spots on leaves 

 i. 285. 



Bcehmeria nivea, bast-cells, i. 725. 



Bog-bean. See Menyanthea trifoliata. 



Bog-moss. See Sphagnum. 



Bog-rushes. See Sckcenus. 



B^-whortleberry. See Vaccinium rife 



olbophyUum Beccarii. nature of scent, Ii. 



199. 



olbophyllum minutissimum, main features, 

 of, i. 299. 



tuber, surface view and section, i. 300. 



Bolbophyllum OdoardL tubers, leaves, I. 



300. 

 Boletus edulis, ii. 688. 



appearance, ii. 491. 



respiration experiments, i. 498. 



loletus sangulneus, poisonous, 1. 491. 

 JJombax, hairy seeds, ii. 855. 



prickles, i. 433. 



iombus lucorum, pollination of Epipogium, 



ii. 225. 257. 

 Bonapartea, leaf-teeth and termination, i. 



438. 



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

 Bonifacius, St., i. 539. 

 Boodlea, thallus. ii. 646. 

 BoraglnacesB, ii. 771. 



- autogamy in, ii. 367, 378. 



cross-fertilization in, ii. 301, 222. 



dichogamy in, ii. 311. 



floral change of colour, ii. 191. 191 



- heterostyly in. ii. 302. 398. 



hybrids few among, ii. 585. 



nectaries, ii. 174, 181. 



pollen and probosces of insects, iL 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. 44L 

 Borago, cotyledon bristles, L 623. 



nectary concealment, ii. 181. 



protandrous, ii. 311. 



Borago officinalis, colour-contrast of flowers, 

 ii. 189. 



cotyledons, i. 621. 



flower, ii. 275. 



pollen-grains, ii. 98. 



pollen-sprinkling apparatus, ii. 275. 



Borassus, geographical distribution, ii. 740. 



Borassus flabelliformis. Palmyra Palm, 

 height of, i. 712. 



Bordered pits, nature and function, i. 277. 



structure, i. 45. 



Bornet and symbiosis in lichens, ii. 692. 



Botanists and general principles of classifica- 

 tion, ii. 607. 



Botany, descriptive, scope of, i. 15. 



discussion of terminology, iL 1 



German fathers of, 1. 4. 



"the loveliest of sciences", L 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. 

 Botrydiacese, iL 642. 

 Botrydium, cilia of. i. 29. 



life-history, " 642. 



reproduction, ii. 482. 



Botrydium granulatum, habitat, ii. 642. 



Botryococcus, life-cycle, ii. 636. 



Botrytis, fermentative action, i. 508. 



Botrytis cinerea, i. 263. 



Bottle-gourd. See Lagenaria. 



Bouchea coluteoides, sticky foliage, 11. 237. 



Boundary-line, absence of, between plants 



and animals, I. 54. 

 Bovenia, Australia, ii. 720. 

 Bovista, 11. 690. 

 Boyle's law, i. 571. 

 Brachydodromus, venation. L < 

 Brachypodium, pollination, IL 142. 

 Brachypodium sylvaticum, arched leaf. 

 429. 



venation, i. 631 



Bracken Fern. See Pterit aquilina. 

 Bract, application of term. L 641. 



colour, ii. 183, 187. 



honey-protection by. ii. 238. 



nature of, i. 737 



ract. secretion of honey, ii. 173. 



r&ctea. See Bract. 



racteoles, accessory in fruit-format 



433. 

 ract-scale, of Abies pectinata, *c., it. 441. 



721. 

 radypus tri dactyl us, and Trichophilus. iL 



627. 



ramble. See Rubiu/nticotut. 

 ranch, curvature and light, i. 416. 



direction and light, i 414 



form and position of transpiring. L 328. 



- long and short, i. 597, 650. 



- nature of, t. 891. 



- of Pinus Pumilio, tL 722. 

 Branching and inflorescence, i. 749. 



Branch-tendrils, morphology. 1. 693. 94. 

 Brassica. siliquas. 11. 431. 



trassica alba, unequal cotyledons, L 621 

 Brassica oleracea, epiphyllous buds. ii. 41 



root-galls, ii. 521. 



stomata, L 280. 



wax ou leaves, 1. 291 



Brassica Rap* rapacea, root, L 760. 



Braun. Alexander, reclasslnoatlon of Mono- 



chlamydese, ii. 616. 

 system of classification. iL 606. 



Jraya alpina, autogamy, iL 336. 



guides to honey, IL 348. 

 Bread-fruit. Bt Artocarjnu tacita. 

 Break back, use of term, ii. 670. 



1 Breaking ". from roots, ii. 27. 

 Breathing and living, synonymous. L 491 

 Bristle Ferns. See HymenopWlacta. 

 Bristles, i. 439. 



- barbed structure, L 440. 



- for retention of salt incrustations, L 237. 



- of Aldrovandla leaf, i. 152. 



- of Dionsea leaf. i. 150. 



Rtinging. structure and function, i. 441. 

 Briza maxima, seed-dispersal, ii. 854. 

 Briza media, anthocyanin in glumes. L 521 

 pollination, ii. 142. 



Broad bean. IwfWiJMa 

 Brome-grass. See Bromut. 

 --False. See BrwAypodtem. 

 BromeliacesB, centripetal inflorescences, L 

 738. 



coloured bracts in. iL 184. 



distinctive characters, ii. 734. 



epiphytic. L 77. 106. 



furfuraceous appearance. L 324. 



- geographical distribution. iL 734. 



- habitat, i. 438. 



- organic remains in cisterns of, L 141 



- pollen-grains. Ii. 102. 



- scarlet flowers in. ii. 196. 



- tropical epiphytic, thick cuticle, I. 309. 



- water-receptacles, i. 156. 



absorptive cells. L 231. 



BromeHew, characteristics, ti. 731 

 Bromine, In marine plants, i. 68. 

 Bromus, and cluster-galls, ii. 547. 

 Brongnlart, IL 603. 



Brood-bodies, and constancy of form, iL 604. 



hybrids perpetuated by. in Roses. IL 668. 



importance for propagation, ii. 70. 



in ovule, resemble normal embryos, IL 



469. 



nature of. iL 6. 



of Mosses, ii. 702. 



possible origin from ooplast, iL 467. 



- - potential iL 46. 



Broom. See Spartium tcoparium. 

 Broom-rape. See Oroba*du. 

 BroussonetU papyrlfera, diosdoos, IL 299. 

 ejection of pollen, *c.. ii. 137- 



- - normal and sucker let* e*. II. 616. 

 stigma, ii. 251. 



- - twig. i. 418. 

 Brown, on celL L 14. 



Brownea cocclne*. *c., scarlet flower, ii. 191 

 Brugmansia, Borneo and Java, flowers. L 

 202 



- geographical distribution, L 201 



- pollen-grain, iL 98, 102. 

 -protection of pollen. IL 118. 



