48 o 



INDEX 



Archil, 275. 



Arctic-alpine societies, 449. 



Arctium lappa, 202. 



Aril, 197, 386. 



Arisaema triphyllum, 163-165. 



Artichoke, globe, 420. 



Artocarpus incisa, 406. 



Arundinaria macrosperma, 399. 



Asclepias, 75. 



Ascocarp, 262. 



Ascoma, 267, 272. 



Ascomycetes, 209, 248, 261-275, 301. 



Ascospores, 262, 263, 266. 



Ascus, 247. 



Ascus fungi, 261-275. 



Asexual reproduction, 223, 225, 237, 



239, 249, 255, 257. 

 Ash, 416. 



Aspergillus oryzae, 125, 134. 

 Aspidium acrostichoides, 329, 330. 

 Asplenium bulbiferum, 328. 

 Assimilation, 90, 101, 105, 107, 121- 



123. 



Assimilation, chemosynthetic, 106. 

 Assimilation, photosynthetic, 106. 

 Assimilation, synthetic, 106. 

 Aster, 419. 

 Auxospore, 235. 

 Avena sativa, 395. 

 Azaleas, 415. 



Bacillariales, 209, 234. 

 Bacillus, 135, 244. 

 Bacillus acidi lacti, 134. 

 Bacillus diphtheriae, 137. 

 Bacillus subtilis, 135. 

 Bacillus tetani, 135, 136. 

 Bacillus tuberculosus, 137. 

 Bacillus typhosus, 136, 137. 

 Bacteria, 103, 114, 118, 121-123, 



126, 132-139, 209, 244, 245. 

 Bacteria, diseases caused by, 136- 



I39-. 



Bacteria, nutrition of, 136. 

 Bacterium, 135. 

 Bacteroids, 122. 

 Bamboo, 399. 

 Bambusa vulgaris, 399. 

 Banana, 402. 

 Banyan tree, 29. 

 Barberry, 87. 



Barium carbonate, 108, 109. 

 Barium hydrate, 108-111. 



Barley, 396. 



Barley smut, 277. 



Barriers to plant migration, 437. 



Baryta water, 109, no. 



Basidiomycetes, 209, 276-303. 



Basidium fungi, 276-303. 



Bassweeds, 228. 



Bass-wood, 413. 



Bast portion of vascular bundle, 31, 



53-58. 



Batrachospermum, 240, 242. 

 Bean, 1-4, 7, 11. 

 Bean, castor, or castor oil, 4-6. 

 Bean, scarlet runner, 4. 

 Beech leaf, 71. 

 Beech order, 403. 

 Beechnut, 190. 

 Beet, 43-. 

 Beggar ticks, 202. 

 Beggiatoa, 135, 245. 

 Berry, 194. 

 Bidens, 202. 

 Biennials, 37. 

 Bilabiate, 149. 

 Biotic factors, 424. 

 Bird's-eye maple, 412. 

 Black fungi, 265. 

 Black knot of plum, 265, 266. 

 Black rust of wheat, 284. 

 Blackberries, 42, 192-195, 202, 406. 

 Blade of leaf, 70. 

 Blastophaga, pollination by, 180. 

 Blue-green algae, 231, 245. 

 Bcehmeria nivea, 405. 

 Boletus edulis, 297. 

 Bracing roots, 29. 

 Bracken fern, 330. 

 Bracket fungi, 292, 296-298. 

 Bread fruit, 406. 

 Bread mold, 248-251. 

 Bromeliaceae, 401. 

 Broom corn, 398, 399. 

 Brown algae, 235-239; uses of, 239. 

 Bryales, 323. 

 Bryophyta, 207, 210. 

 Bryophytes, 207. 

 Bud shoots, 39, 61-69. 

 Buds, adventitious, 45, 47. 

 Buds, axillary, 47. 

 Buds, characters of, 63. 

 Buds, protection, 47, 48, 61-69. 

 Buds, respiration of, in. 

 Buds, terminal, 47. 

 Buds, winter condition of, 61-69. 



