552 



BOTANY OF THE LIVING PLANT 



Barberry, as host for Aecidium 

 (Puccinia), 443 (Fig. 376) ; diseased 

 patches on, 447 (Fig. 383). 



Barbula muralis, protonema of, 355 

 (Fig. 297) ; bulbils of, 359. 



Bark, 54. 



Barley, root- tip of, 77 (Fig. 60) ; 

 analysis of, 547 ; origin of, 548. 



Basidio-Lichenes, those Lichens in 

 which the fungal constituent may 

 be classed under the Basidio- 

 mycetes, 454. 



Basidiomycetes, fungi which produce 

 basidia, 411, 412, 441. 



Basidiospores, spores produced on 

 basidia, 411 (Fig. 347), 441. 



Basidium, the characteristic spore- 

 bearing body of the Basidio- 

 mycetes, 411 (Fig. 347), 441 ; 

 septate of Puccinia, 446 (Fig. 381) ; 

 of Ustilagineae, 450 (Fig. 385). 



Bast-fibres, 50 (Fig. 37), 145. 



Bast-parenchyma, 51 (Fig. 37). 



Bauhinia, correlation in leaf, 184. 



Bean (Vicia Faba), 6 (Fig. 2), 81 

 (Fig. 63) ; correlation in leaf of, 

 184 ; root-tubercles of, 204 ; ana- 

 lysis of, 542 ; origin of, 543. 



Beech, ectotrophic mycorhiza of, 



194. 195- 



Beetroot (Beta vulgaris), origin and 

 analysis of, 541. 



Begonia, propagation of, by adventi- 

 tious buds, 281. 



Berry, a fruit with the whole pericarp 

 succulent, 393 (Fig. 239). 



Beta vulgaris (Beetroot), origin and 

 analysis of, 541. 



Bicornes, 493, 525. 



Bidens, 535 ; hooked fruits of, 292 

 (Fig. 238). 



Bignoniaceae, climbing habit of, 180. 



Bilateral symmetry, where the sides 

 of an organ or shoot are alike, as in 

 many sea- weeds, 172. 



Bilberry, 526. 



Bird's-nest Orchis (Neottia), mycor- 

 hiza in, 197 ; saprophytism of, 201, 

 202 (Figs. 153, 154). 



Blackberry, analysis of, 544. 



" Bleeding," 92. 



Bletiella, germination of, 201. 



Blue-green Algae, 456. 



Boehmeria, fibrous cells of, 145. 



Boletus, 425. 



Bordered pits, of Conifers, 306 (Figs. 

 247. 248). 



Botryopteris cyhndrica, stem of, 329 

 (Fig. 268). 



Bracken, 327 ; vegetative propaga- 

 tion of, 218 ; meristele of, 331 

 (Fig. 270) ; branching in, 336. 



Bract, a reduced leaf, subtending a 

 flower, 223. 4 



Bract-scale of Conifers, 309 (Fig. 252). 



Bracteole, a reduced type of bract, 

 borne on a relatively higher branch 

 of an inflorescence, 223. 



Bran, 545 ; analysis of, 546. 



Brassica, 9-10 (Fig. 3) ; Cabbage, 

 Kale, Cauliflower, Turnip, 541, 542. 



Breaking strain, the smallest burden 

 per unit of transverse section of a 

 strand which will cause rupture, 

 146, 147. 



Breeding, rate of, 296. 



Bromeliads, epiphytic, 178. 



Broom-rape (Orobanche), parasitism 

 of, 193 (Fig. 144). 



Bryophyllum, adventitious buds of, 

 214. 



Bryophyta, the lower archegoniate 

 plants, including Mosses and Liver- 

 worts, 3 ; mycorhiza in, 197 ; des- 

 cription of (Chap, xxii.), 353-370. 



Bryopsis, thallus of, 139. 



Buckwheat, root- tip of, 77 (Fig. 61 , A ) . 



Bud ; a compact young shoot, 9 ; 

 dormant, 14, 69 (Fig. 52) ; axillary, 

 formed in normal sequence, 212 

 (Fig. 1 60) ; adventitious, 214 

 (Figs. 161, 162, 167). 



Bulb, a storage bud : of Hyacinth, 

 165 (Fig. 125) ; ripening of, 166 ; 

 bulb-habit, 167. 



Bulbochaete, 393, 394 (Fig. 332). 



Buttercup (Ranunculus), root of, 

 74 (Fig. 56) ; Water- Buttercups, 

 178 ; flower of, 509, 510 (Figs. 415, 

 416). 



Buxbaumia, saprophytism of, 358. 



Cactus, succulent stem of, 95 (Fig. 71), 

 96, 176; correlation in, 184. 



Calamus, Rattan Palm, straggling 

 habit, 181 (Fig. 134, iv.). 



California, giant trees of (Frontis- 

 piece), 14, 303. 



Calluna (Heather), endotrophic my- 

 corhiza, 198 (Fig. 149). 



Callus, a carbohydrate substance de- 

 posited round the sieve-plate, 43 

 (Fig. 28). 



