568 



INDEX 



Antheridium, 322, 326, 328, 410, 312*, 

 316*, 333*, 411*, 419*, 432*. 



Anthoceros, 416, 416*. 



Anthocerotales, 407. 



Anthocyan, 284. 



Antitoxins, 123. 



Apetalae, 473. 



Apetalous flower, 13, 11*. 



Apical meristem, 126*, 183*. 



Apophysis, 422. 



Apothecium, 366, 367*, 382*. 



Apple, flower, 13*; cyme, 31*; apple 

 pollen, 50; type of fruit, 78; sec- 

 tion of twig, 199*. 



Apple Blotch, 404. 



Apple Rust, 401, 400*, 403*. 



Apple Scab, 378. 



Archegonia, 409, 410*, 419*, 432*, 

 449*. 



Archichlamydeae, described, 472; 

 families, 473. 



Arctium Lappa, fruits, 86*. 



Arginin, 281. 



Aril, 56, 57*. 



Arisaema triphyllum, 26*. 



Arrangements, of leaves, 238. 



Ascus, 364, 368*, 382*. 



Ascocarp, 365. 



Ascogenous hyphae, 368, 376, 367*. 



Ascogonium, 368. 



Ascomycetes, 353, 363. 



Ascospore, 364, 366*. 



Asparagus, 160, 271. 



Asparagus Rust, 403. 



Aspergillus, 375, 375*. 



Associated plants and animals, 503. 



Atropine, 283. 



Auricles, 235. 



Auxanometer, 215, 216*. 



Auxograph, 215. 



Auxospore, 332. 



Available water, 160. 



Awn, 22. 



Bacillus subtilis, 343*. 



Bacteria, 155, 156, 289, 336, 157*; 

 described, 341; coccus forms, 

 341, 342*; bacillus forms, 341, 



342*; spirillum forms," 341, 342*; 



reproduction, 343; of decay, 344; 



of fermentation, 345, 345*; of 



nitrification, 345, 346*; patho- 

 genic, 346, 347*. 

 Balm of Gilead, 474. 

 Banner, 24. 

 Barberry, 396, 399*. 

 Bark, 127; described, 199. 

 Basidium, 382, 386*. 

 Basidiomycetes, 352; described, 382. 

 Basidiospore, 383, 386*, 399*. 

 Basswood, flower, 10*; fruits, 83*. 

 Bast fibers, 115, 129, 129*, 193*, 196*, 



198*. 

 Bean, family, 23; seed, 56*, 57*; type 



of seeds, 58; seedling, 106*; type 



of seedling, 107. 

 Beech and Oak family, 476; flowers, 



476*. 



Beggar-ticks, fruits, 86*. 

 Berberis vulgaris, 396, 399*. 

 Berry, 77, 77*. 

 Betulaceae, 475. 

 Bidens, fruit, 86*. 

 Biennial, 171. 



Bindweeds, 489*; described, 490. 

 Biometry, 538. 



Birch family, 475; flowers, 475*. 

 Bird's nest Fungus, described, 391, 



392*. 



Bitter Rot of Apples, 378, 379*. 

 Blackberry, fruit, 79. 

 Black Fungi, 369. 



Black Knot, 222; described, 369, 370*. 

 Black leg, 348. 



Black oak, section of stem, 200*. 

 Black-rot of cabbage, 347. 

 Black-rot of Grapes, 378. 

 Black-rot of Sweet Potato, 404. 

 Black Rust of grain, described, 396, 



397*, 398*, 399*. 

 Black Walnut, 474. 

 Bladder Plums, 377. 

 Blade of leaf, 234; described, 235: 



236*, 237*. 



Bleeding of plants, 161. 

 Blister Rust of Pines, described, 402. 



