416 



INDEX 



86, 87 (fig.), 112; Currant 

 (Ribes nigrum), 105 ; Mould 

 (Mucor), 231 ; Walnut (Jug- 

 lans nigra), 129. 



Blackberry-rust (Phragmidium bul- 

 bosum), 248. 



Bladder-hairs, 94 (fig.). 



Bladderwort (Utricularia) , 150. 



Bladderwrack (Fucus vesiculosus) , 

 38, 200-202 (figs.), 225 (fig.). 



Blechnum spicant, 291, 295, 308 

 (fig.), 324. 



Bleeding of plants, 124. 



Blue-green Algae (Cyanophyceae), 

 192, 210, 257, 268, 406 ; re- 

 production of, 206 (fig.), 216, 

 220 ; structure of, 204-6 



(fig-)- 



Blue Gum (Eucalyptus globulus], 

 129 ; Mould (Penicillium), 



239. 



Body cell (of Conifers), 349, 350. 

 Bog-moss (Sphagnum), 274, 275 



(fig.), 276, 407 ; Myrtle 



(Myrica gale), 268, 357, 359. 

 Bog-plants, structure of, 177, 178. 

 Boletus, 245, 250, 251 (fig.). 

 Borage (Borago), hairs of, 104. 

 Boraginaceae, 102, 104. 

 Bordeaux mixture, 254. 

 Bordered pits, 35 (fig.), 36, 37 (fig.), 



68, 120, 340, 341 (fig.), 343; 



of Ferns, 293 ; of wood-fibres, 



33, 121 ; one-sided, 122 ; role 



of, 37- 

 Bowenia spectabilis, 324 (fig.), 325 



(fig-)- 



Box (Buxus], 86, 127. 



Bracken (Pteris aquilina), extra- 

 floral nectaries of, 148, 149 

 (fig.) ; habit of, 289, 290 (fig.) ; 

 leaf of, 60, 112, 169, 291, 295 ; 

 rhizome of, 290 (fig.), 292-4 

 (figs.) ; sori of, 296 (fig.). 



Bracket-Fungus (Polyporus squa- 

 mosus), 250 (fig.). 



Bract-scale (of Conifers), 347 (fig.), 

 352 (fig.), 353- 



Bramble (Rubus spp.), prickles of, 

 104. 



Branched hairs, 101,102 (fig.), 103; 

 in Algae, 221 (fig.), 225. 



Branching, forked, 200, 201 '(fig-). 

 269, 275, 290, 315, 317; 

 monopodial, 334 ; of Algae, 

 I 95~8 (figs.) ; of Conifers, 

 334. 335 ; of Cycads, 322 ; of 

 Equisetum, 310, 311 (fig.) ; of 



Ferns, 289, ' 290 ; of Liver- 

 worts, 269, 270 (fig.) ; of 

 Lycopodium, 315 ; of Lyginop- 

 teris, 328 ; of Mosses, 275 ; of 

 rhizoids, 274 ; of roots, 65, 71 

 (fig.) ; of Selaginella, 317 (fig.) ; 

 of stems, 72, 90. 



Brandy, 257. 



Brazil Nut (Bertholletia excelsd), 

 food-substances of, 49, 51. 



Bread, 52. 



Breathing, 178, 201, 257 ; and 

 protoplasmic movement, 4 ; 

 of fat-containing seeds, 50. 



Breeding, 378, 382, 388. 



Bristle hairs, 104. 



Broad Bean (Vicia faba), 53; ex- 

 trafloral nectaries of, 148. 



Brooklime (Veronica beccabunga], 

 stoma of, 1 60 (fig.). 



Broom (Cytisus scoparius), stem of, 

 88, 167. 



Brown Algae (Phaeophyceae) , 406 ; 

 reproduction of, 216, 218, 219 

 (fig.), 221 (fig.), 224-6 (fig.) ; 

 structure of, 198-204 (figs.), 

 208, 210. 



Brownian movement, 210, 262. 



Brussels Sprouts, " Finger and 

 Toe " disease of, 254 (fig.). 



Bryales, 407. 



Bryony, Black (Tamus communis), 

 112 ; stem- structure of, 86, 87 



(fig-)- 

 Bryophyta, 269-88 (figs.), 289, 



305, 307, 32i, 333, 37. 373. 

 407 ; antheridia of, 277-80 

 (figs.) ; archegonia of, 280, 

 281 (fig.) ; habit of, 269-72 

 (figs.), 274 (fig.) ; habitat of, 

 269 ; sporogonia of, 281-7 

 (figs.) ; structure of, 272, 273 

 (fig.), 275 (fig.), 276, 278 (fig.) ; 

 vegetative reproduction of, 

 277, 287 (fig.), 288. 



Bryum argenteum, 285 (fig.). 



Buckthorn, Sea (Hippophts rham- 

 noides), hairs of, 103 (fig.). 



Buckwheat (Fagopyrum), 371. 



Bud-scales, in, 322. 



Budding of suspensor, 371 (fig.), 

 372 ; of Yeast (Saccharomyces), 

 256 (fig.), 257. 



Bulbils (of Lycopodium selago), 315. 



Bulbs, 40, 44, 45, 355. 



Bulrush (Scirpus), 178. 



Bundles, 76; bicollateral, 81 (fig.), 

 82 ; collateral, 76, 78 (fig ), 



