INDEX 



Absorption, 12, 20, 45 

 Accompanying cells, 65, 66, 67 

 Achlya, 198 

 Actinomorphic, 353 

 Adiantum, 2g8 

 Aecial stage, 222 

 Aecidiospores, 222 

 Agaricaceae, 230, 233 

 Agaricales, 227, 228 

 Agrimony, 417 

 Akene, 347, 365, 406 

 Albugo, 200, 201 

 Algae, 154 



blue green, 145 



brown, 181 



conjugating green, 165 



filamentous green, 170 



green, 155 



red, 189 



tubular green, 174 

 Alga-like fungi, 197 

 Allen, 194 

 Alternation of generation, 123, 



290 

 Amanita, 230 

 Ambrosiaceae, 458 

 Ament, 397, 398 

 Anemophilous, 355, 371 

 Angiospermae, 345 

 Ankistrodesmus, 162 

 Annular rings, yy, 78 

 Annuals, 60 



Annulus, 230, 272, 278, 295 

 Anther, 102, 103 

 Antheridial cell, 107 

 Antheridium, antheridia, 176 

 Antherozoids, 176, 248 

 Anthoceros, 264, 266 

 Anthocerotales, 266 

 Antipodal cells, 105. 106 



Antitoxin, 145 



Apophysis, 277, 278 



Apple, 418 



Arales, 377 



Archangiopteris, 286 



Archegonium, 248, 249 



Arcyria, 135 



Aroid order, 377 



Arrow-wood, 449 



Ascocarp, 206, 211 



Ascomycetes, 205 



Ascospores, 206 



Ascus, asci, 206 



Asexual generation, 122, 173, 180, 



193, 254, 290 

 Aspergillales, 209 

 Aspergillus, 210, 211 

 Autogamy, 350 



Bacillus, 140 

 Bacteria, 139, 140 



of decay, 142 

 181 of disease, 143 



nitrifying, 57, 142 

 Bark, 72 



Basidial stage, 224 

 Basidiomycetes, 221 

 Basidiospore, 224 

 Basidium, basidia, 221, 223, 231 

 Bean seed, 116 

 Beard, 39 

 Beech, 401 



order, 399 

 Bellflower, 451 



order, 451 

 Berry, 365 

 Bidens, 456, 457 

 Biennials, 59 

 Black knot, 215 

 Blackmail, 223 

 461 



