60S 



BOTANY 



Basswood, Tilia 



Bast, 121, 133, *134, *187, *138 



Bastards, see Hybridisation 



Bastard toad-flax, Therium linophyllum 



Batrachospermmn, 334-*336 



Bearberry, Arctostaphylos 



Bearded Darnel, Lolium tenulentum 



Beard Lichen, Usnea barbata 



Bear's-foot, Helleborvs foetidus 



Bedstraw, Galium 



Beech, Fagus 



Beer-yeast, Saccharomycetes 



Beet, Beta 



Beggiatoa, 310 ; sulphur, 73 



Begonia, 525 ; roots, 41 ; bundles, 1 19 ; 



multiplication, 228 

 scandens, 254 

 Begoniaceae, 525 

 Belladonna, 582 

 Bell-flower, Campanula 

 Benzoiaum, 569 

 Berberidaceae, 516 

 Berberis, *516 ; leaves of, 36 ; attacked 



by rust fungus, 366 

 Berry, structure of, 460 

 Berthol/etia, 73 

 Berula, 550 

 Beta, 235, *507 

 Betain, 203 

 Betony, Stachys 

 Betula, 496,' *497, 498 ; bark, 141 ; 



lentieels, 142 

 Betuloideae, 496 

 Bicollateral bundles, 104 

 Bicornes, 568 

 Biennials, 27 

 Bifora, 547 



Bifurcation, 17-20, *148 

 Birjutmia, stem, *138 ; seed, *291 

 Bignoniaeeae, 585 ; thickening, *138 

 Bilateral plants, 17 

 Biota, 46 

 Birch, Betula 

 Birthwort, Aristolochia 

 Bisymmetrical plants, 16 

 Bitter principles, 74, 206 

 Bitter-sweet, Solanum Duh-amoni 

 Blackberry, Riibus 

 Black Henbane, Tlyoscyamus 

 Bladder-plums, Exnascus 

 Bladderwort, Utrieularia 

 Bin si a, 390 ; development, *14 

 Blechnum, 429 

 Bleeding, 185, 187 

 Blitum, 507 



Bloodworts, Haemodoraeeae 

 Blumenbachia, climbing, 261 

 Bulitus, 369-*371 ; tissue, *87 

 Bombacaceae, 531 



Borttgiaaceae, 577 ; rust fungi on, 367 

 Boriigo, *578 



Boron in plants, 172 



Bostryx, ,461, *462 



Botryehium, 404, *405 



Botrydium, 325, *326 



Botryose inflorescence, 460, *461 



Botrytis, 358 



Bouncing Bet, Saponaria 



Bovista, 374 



Box, Buxus 



Bracken, Pteris aquilina 



Bracteal leaves, 29-33 



Bracts, 33, 462 



Brake, see Bracken 



Branch stems, 17 



Brand fungi, Hemibasidii 

 spores, 360 



Brasilin, 125 



Brassiea, 189, 305, 519 



Brazil wood, Caesalpiuia 



Bread-tree, Artocarpus 



Bristles, 97 



Briza, 480 



Bromeliaceae, 470 ; aerial roots, 43 ; water- 

 reservoirs, 194 



Bromine in plants, 172 



Bromus, 480 



Broom, Orobanche 



Scotch, Spartimii scoparitnn 



Brucin, 206 



Bnjinae, 145, 392 



Bnioaia, *593, 594 



Bryophyta, 14, 38] 



Bryopsis, 328 ; thallus, 227 



Buckbean, Menyanthes 



Buckthorn, Rhammis 



Buckwheat, Fagujit/ri'm 



Bud, *18, 21 

 variations, 154 



Budding, 229, 278 



Bugle, Ajuga 



Bulbils, 22, 278, 279 



Bn/bnehaete, 324, *325 



Bidbiis, 23 

 Scillae, 468 



Bundles, primary vascular, 101 ; conduct- 

 ing, 101 ; collateral, 103 ; concentric, 

 104 ; termination of vascular, 106, 

 *107 ; flanges, 114 ; course of vascular, 

 116 ; common, cauline, and foliar, 118 



Bupleurum, 546, 549 ; leaf, 30 



Burdock, Lappa 



Burma nniaeeae, 490 



Burrs, formation of, 144 



Burseraceae, 535 



Bush- Honeysuckle, Weigelia 



Butomus, 483 



Butter-bur, Petasitcs vulgaris 



Buttercup, Ranunculus 



Butterwort, Pingvicula 

 Bu.eareae, 539 

 Bu.rtts, 539 



