528 



INDEX 



Aquatic plants, 106, 108, 484. 

 Aquatic plant societies, 484. 

 Aquatic salt marshes, 484. 

 Arbutus, trailing, 445. 

 Arceuthobium, 136. 

 Archegoniophore, 339. 

 Archegonium, 335, 338, 340, 342, 



347, 348, 35 6 , 3 6 5~3 68 > 37 6 , 379, 



392, 400, 410. 

 Archil, 303. 



Arctic-alpine societies, 479, 480. 

 Arctium lappa, fruit of, 220. 

 Aril, 214. 



Arisaema triphyllum, 178. 

 Artichoke, Jerusalem, 24, 95, 450. 

 Artificial cell, 41. 

 Arum family, 179. 

 Arundinaria macrosperma, 429. 

 Asclepias, 83. 

 Asclepias cornuti, 149. 

 Ascocarp, 332. 

 Ascoma, 294. 



Ascomycetes, 229, 287-304, 330, 331. 

 Ascophyllum, 484. 

 Ascospores, 291, 293. 

 Ascus (i), 273, 287, 290, 293, 295, 



296, 300.^ 



Ascus fungi, 287-304. 

 Ascus stage, 289. 

 Asexual multiplication, 244. 

 Asexual multiplication of extremes, 



581. 

 Asexual reproduction, 242, 244, 258, 



259, 261, 275, 281, 284. 

 Asexual spores, 242, 289, 372. 

 Asexual stage, 285, 294. 

 Ash, 446. 



Asparagus plumosus, 47. 

 Aspergillus oryzae, 132, 133. 

 Aspidium acrostichoides, 360, 361. 

 Assimilation, 97, 109, 113, 114. 

 Asplenium bulbiferum, 358. 

 Aster, 449. 

 Atropin, 326. 

 Auxospore, 257, 

 Avena sativa, 425. 

 Avens, fruit of, 221, 222. 

 Axillary, 53, 72, 148-152. 



Bacillariales, 228, 256. 

 Bacillus acidi lacti, 267. 

 Bacillus diphtherise, 268. 

 Bacillus subtilis, 266. 

 Bacillus tetani, 266, 268. 



Bacillus tuberculosis, 268. 



Bacillus typhosus, 268. 



Bacteria, 128-130, 134, 140, 141, 



229, 266-271. 

 Bacteria, nitrate and nitrite, in, 



113, 122, 127. 

 Bacteroids, 129. 

 Bad lands, 459. 

 Bamboo, 429. 

 Bambusa vulgaris, 429. 

 Banana, 432. 

 Barberry, 93, 310. 

 Barium carbonate, 116, 117. 

 Barium hydrate, 116-119. 

 Barium oxide, 116. 

 Barley, 426. 

 Barley smut, 306, 307. 

 Baryta water, 117. 

 Basidiomycetes,.229, 305-332. 

 Basidiospore, 323. 

 Basidium (a), 274, 323, 332. 

 Basidium fungi, 305-332. 

 Bass weeds, 248. 

 Bast, 60, 63, 64, 362. 

 Bast sheath, 362. 

 Batrachospermum, 264. 

 Bean, 6-8, 26. 

 Bean, castor-oil, 9-11, 17. 

 Bean, scarlet runner, 8. 

 Beech drops, 93, 136. 

 Beechnut, 207. 

 Beech order, 433. 

 Beech root, 131. 

 Beggar ticks, 220, 450. 

 Beggiatoa, 268. 

 Bellflower, 190, 191. 

 Bell-shaped, 146. 

 Berry, 212. 

 Bidens, 450. 

 Bidens, akenes of, 220. 

 Biennial, 43. 

 Bilabiate, 162, 188. 

 Biotic factors, 454. 

 Bird's-eye maple, 442. 

 Blackberries, 47, 209-212, 436. 

 Black cherry, 439. 

 Black fungi, 291. 

 Black knot fungus, 292. 

 Black rust of wheat, 314. 

 Blastophaga, 196. 

 Blue-green algae, 227, 253, 271. 

 Blue mold, 288. 

 Bluet, 190, 448. 

 Body cell, 183, 200, 395, 400, 411. 



