INDEX 



Figures in heavy type indicate pages on which illustrations occur. 



Abnormalities, 196. 



Abrus, 363. 



Absciss-layer, 120. 



Absorption, 262 ; by roots, 224. 



Adaptation, 12. 



Adhesive seeds, 362. 



Adult, 388. 



Aeration system, 132, 266. 



Aerenchyma, 252, 266. 



Aerial roots, 254, 256. 



Aerotropism, 232, 248. 



Estivation, 329. 



After-ripening, 379. . 



Agriculture, 4. 



Air, in soils, 240. 



Air-passages, 19, 29. 



Air system, 33. 



Akene, 348, 349. 



Alcohol, production, 172 ; source, 



101. 

 Algae, 12 ; Red, 305. 

 Alkaloids, 109. 



Alternation of generations, 301. 

 Alveolar, 37. 

 Anatomy, 3, 8. 

 Anchorage by roots, 231. 

 Animals, nutrition, 86 ; seed carriage, 



361. 

 Annual rings, 124. 

 Annuals, 114. 

 Anoxyscope. 167, 168. 

 Anther, 272. 

 Antheridium, 306. 



Anthocyanln, 88 ; composition, 108; 

 Antitoxin, 173. 

 Ants, in dissemination, 363. 

 Apogeotropic, 247. 

 Appendages, 376. 

 Archegonium, 306. 

 Areas of chlorenchyma, 32. 

 Aril, 351, 375. 

 Aristolochia, anatomy, 129. 

 Asexual spores, 301. 



Asexual vs. sexual propagation, 302. 

 Asparagus, fasciated, 197. 

 Automatism, 39. 

 Autumn coloration, 88 ; effect of 



external conditions, 93. 

 Au.xograph, 155, 156 ; record, 156. 



Bacteria, 84, 244, 36S ; nitrifying, 

 244 ; nutrition, 84 ; in soils, 244. 



Bacteriolog:,^ 4. 



Bailey, L. H., Cyclopedia, 60. 



Bald Cypress, 252. 



Balfour, Class Book, 58. 



Bamboo, 127, 179. 



Banana, 58. 



Banyan, 253, 254. 



Bark, abscission, 123. 



Barton, Botany, 75. 



Bast, 130; fibers, 131, 265; paren- 

 chyma, 131. 



Beet rings. 256. 



Begonia phyllomaniaca, 204. 



Berry, 350. 



Biennials, 114. 



Bignonia seed, 358. 



Bird's-eye Maple, 198. 



Birds, as cross-pollinators, 294 ; in 

 dissemination, 363. 



Black Knots, 367, 



Bleeding, 151, 227. 



BUghts, 367. 



Blood heat, 169. 



Blotch diseases, 367. 



Bordeaux mixture, 369. 



Botany, definition, 1 ; study, 2 ; 

 subdi^'isions, 2. 



Bracket, on stems, 182. 



Bract, 73, 271, 276; colored, 74; of 

 Linden, 74 ; in Poinsettia, 74. 



Branch, 183. 



Bryophyllum, 71 ; 299. 



Bryophytes, 11 ; low growth of, 144. 



Bud, accessorj', 137 ; adventitious, 



391 



