INDEX 



Abies, 361 



Absorption, 12, 20, 48, 54 

 Acer, 442, 444 



Accompanying cells, 74 75, 76 

 Achlya, 207 

 Actinomorphic, 371 

 Adhesion, 370, 456 

 Adiantum, 314 

 Adlumia, 428 

 Aecial stage, 233, 235 

 Aeciospores, 233, 234, 235 

 Agaricaceae, 242, 246 

 Agricales, 240, 241 

 Agrimony, 435 

 Akene, 364, 383, 423 

 Albugo, 210 

 Algae, 163 



blue-green, 154 



brown, 190 



colonial, 169 



conjugating green, 174 



filamentous green, 179 



green, 164 



red, 199 



tubular green, 183 

 Alga-like fungi, 206 

 Allen, 203 

 Alnus, 417 

 Alternation of generation, 130, 190, 



237, 305 

 Amanita, 242 

 Ambrosiaceae, 470, 476 

 Ament, 414, 415 

 Anemophilous, 372, 388, 422 

 Angiospermae, 362 

 Ankistrodesmus, 171 

 Annular rings, 86, 87, 88 

 Annuals, 63 



Annulus, 242, 286, 292, 293, 310 

 Anther, 109, no 

 Anther, versatile, 393 

 Antheridial cell, 114, 115, 343 

 Antheridium, antheridia, 185, 260 

 Antherozoids, 185, 261 

 Anthoceros, 278, 280 

 Anthocerotales, 278 



Antipodal cells, 112, 113, 374 



Antitoxin, 154 



Apophysis, 291, 292 



Apple, 436 



Arales, 395 



Aralia, 28 



Archangiopteris, 301 



Archegonium, 261, 262 



Arcyria, 143 



Aroid order, 395 



Arrow- wood, 467 



Arum, 398 



Ascocarp, 216, 221 



Ascomycetes, 215 



Ascopores, 216 



Ascus, asci, 216 



Asexual generation, 129, 182, 190, 203, 



237. 265, 305 

 Aspergillales, 219 

 Aspergillus, 220, 221 

 Asplenium, 309, 313 

 Autoecious, 233 

 Autogamy, 367, 431, 450 

 Azalea, 457 



Bacillus, 148 

 Bacteria, 147, 148 



of decay, 151 



of disease, 152 



nitrifying, 60, 151 

 Barberry rust, 237 

 Bark, 81 



Basidial stage, 237 

 Basidiomycetes, 232 

 Basidiospore, 236 



Basidium, basidia, 232, 236, 237, 244 

 Basswood stem, 88 

 Bean seed, 123, 124 

 Beard, 42 

 Beech, 417, 419 



order, 416 

 Begonia, 2 

 Bellflower, 469 



order, 469 

 Berry, 383 

 Bidens, 474, 475 



479 



