422 



INDEX 



Archichlamydeae, 232, 234, 235, 



248, 263. 

 Arctium, 263. 

 Arenaria, 385. 

 Arrowhead (Sagittaria), 371. 

 Artichoke, Jerusalem (Helianthus 



tuberosus), 131, 263. 

 True (Cynaria Scolymus) , 263. 

 Arum, 134. 

 Ash, Common, 23-4, 27, 28, 210, 



215, 222, 308-11, 337, 345, 



349. 350, 353- 

 Mountain, 121, 225, 298-301, 



348. 

 Ash woods, 349, 350, 353. 

 Asparagus, 147, 266. 

 Aspen, 279. 

 Asphodel, Bog, 266. 

 Assimilation of carbon dioxide, 



78, 80. 

 Aster, 263, 382, 383. 

 Atriplex, 378, 383, 387. 

 Atropa, 255. 

 Atropine, 254. 

 Attitudes of plants, 147-8. 

 Aubretia, 238. 

 Autumn Crocus, 157, 266. 

 Avens, Mountain, 244 



Water, 225, (Fig. 160), 244, 349. 

 Awn, 202, 227, (Fig. 162). 

 Axillary branches, 12. 

 Axis, ascending, 12. 



descending, 12. 



Bacteria, 220, 324. 

 in root nodules, 326. 

 in soil, 325-6. 

 nitro-, 325-6. 

 Balsam, 74, (Fig. 43), 228, (Fig. 



162). 

 Bamboo, 264. 

 Banana, 211, 218. 



how propagated, 218. 

 Barberry, 225, 339, (Fig. 219). 

 Barley, 54, 265. 

 Bartsia, 256, 379. 

 Bast, 69, 70. 

 Beaked Parsley, (see Chervil), 



380, (Fig. 244). 

 Beam, White, 349. 

 Bean, Broad, 19-23, (Figs. 6, 7), 

 25, 28, 37 (Fig. 17), 87, 190, 

 209, 216, 246. 



Bedstraw, 348, 361. 



Lady's, 369. 



Marsh, 376. 



Yellow, 370, 380. 

 Beech, 1 14-18, (Figs. 72, 74-6), 

 148, 205, 212, 236, 289-91, 

 (Figs. 190-1), 345> 352,353- 

 4. 36o. 

 Beet, 59, 60, 125. 

 Belladonna, 254. 

 Bellflower, 155. 



Nettle-leaved, 353. 

 Bellis, 262, 380. 

 Bent-grass, 367. 

 Berry, 218-19. 

 Betony, Wood, 254, 370. 

 Betula, 236. 

 Betulaceae, 236. 

 Bidens, 263. 

 Biennials, 124-5, 379- 

 Bifoliar spur, 118. 

 Bignonia, 222. 

 Bilberry, 317, 348, 368, (Fig.254). 



edge, 391. 



moor, 317, 391, (Fig. 252). 

 Bindweed, 341, 379. 



Black, 378. 



Sea, 385. 

 Binomial system, 231. 

 Birch, 121, 222, 236, 283-6, 

 (Fig. 188), 294, 345, 348, 



352. 



Birch wood, 352. 



Bird's-foot Trefoil, 386. 



Bird's-nest, Yellow, 356, 357. 



Bird's-nest Orchid, 356. 



Birthwort, 68, (Fig. 36). 



Bistort, Water, 375. 



Bitter Cress, 348. 

 Large, 370, 376. 



Bittersweet (see Woody Night- 

 shade), 116. 



Blackberry (Bramble), 217, (Fig. 

 153), 219, 224, 225, 242, 

 243, 244. 



Blackthorn, 119, 225, 339. 



Bladder-fern, Brittle, 349. 



Bladderwort (Utricularia), 365, 

 (Fig. 234), 372. 



Bladder-wrack, 381. 



Bleeding, 98. 



Blinks, Water, 343. 



Bloom on leaves and fruits, 95-6. 



