GENERAL INDEX. 



Abnormal, s.tem and root, 94 



Absorption-cells, 144 



Absorption of assimilated substances, 



141 



Acheuium, 232 

 Achromatin, 12 

 Acropetal order of development, 69, 



170, 172 



Actinic rays, 130 

 Actinomorphic, 219 

 Active growth, 261 

 Acyclic, 218 

 Adaptation, 243, 246 

 Adhesion, 61 



Adventitious formations, 166 

 ^Ecidium, 197 

 Aeration, 132 

 Aerial roots, 140 

 ^Estivation, 166 

 JSthusa, 221 

 Agave, 158 

 Age of plants, 250 

 Aggregate fruits, 231 

 Albumen, 151 



Albumen-conducting elements, 72, O' x 

 Albuminoids, 4, 5, 21, 99, 251 

 Aleurou, 21 

 Algge, 192 

 Alkaloids, 256 

 Aloe. 54, 150 



Alternation of generation, 186, 200 

 Amides, 99 

 Ammonia, 255 

 Amphitropous, 229 

 Amylodextrin, 20 

 Amylum, 17, 131 

 Anatropous, 228 

 Andrcecium, 216, 222 

 Androspore, 193 

 Anemophilous, 239 

 Angiosperms, 210 

 Animals, 148 

 Annual plants, 158 

 Annual ring, 90 

 Annular vessels, 35 

 Annulus, 226 

 Anther, 223 

 Anther-case, 227 

 Antheridium, 189 

 Anthers, 223 

 Antipodal cells, 209, 229 

 Antipodes, 209 



Ants, 148 



Apetalous, 215 



Apical cell, 118, 169 



Apical growth, 11, 46, 48 



Apogamy, 243 



Apotropous, 229 



Apple, 233 



Apposition, 17, 27 



Aqueous tissue, 55, 150 



Archegoniuni, 189 



Arillus, 233 



Aroids, 140 



Ascent of sap, 108 



Ascomycetes, 43, 196 



Ascospore, 43 



Asexual generation, 185 



Asexual propagation, 186 



Asexual reproduction, 186 



Ash, 252 



Asparagin, 24 



Assimilation, 122 



Atavism, 242 



Atropous, 228 



Autonomous movements, 279 



Autumnal wood, 89 



Auxanometer, 269 



Axil, 166 



Axillary placentation, 228 



Axillary shoots, 118, 166 



Azygomorphic, 219 



Bacteria, 129 

 Bacteroids, 16 

 Bark, 56 

 Basidia, 196 



Basidiomycetes, 44, 196 

 Basidiospore, 196 

 Basidium, 196 

 Bast, 72 

 Bast- cell, 72 

 Bast-rib, 79 

 Bast-ring, spiral, 93 

 Bast-tissue, 72 

 Berry, 233 

 Biennial plants, 158 

 Bifacial, 127 

 Bilateral structure, 166 

 Biogenesis, 162 

 Bisexual, 187 

 Bleeding, 107 

 Bordered pits, 38 

 Bostrychoid, 183 



293 



