INDEX 
Abnormal methods of food supply, 
189 
Absorption, of water 18, 73, of food 
materials 132, of salts 138, of gases 
142, of organic food 189; con-. 
ditions of continuous, 136, facili- 
tated by CO, 137, by acid sap 
137; strength of salts absorbed, 
138; varied amounts of salts ab- 
sorbed, 139 
Acclimatisation, 374 
Acer, 92 
Aconitum, 449 
Aithalium, 10 
After-effect of stimulation, 417 
Agave, 245 
Aggregation, 400, 414 
Air-chambers, in Jsoétes, 112; in 
Marsilea, 113; in submerged 
plants, 114; in grasses, 115; in 
leaf of heath, 119 
Albumen, 444 
Albumin, 167 
Albumoses, see Proteoses 
Alburnum, 77 
Alchemilla, 81, 88 
Alcohol, 260, 307 
Aleurone grains, 241, 242 
Alkaloids, 276 
Alternation of generations, 436 
Aluminium, 135, 181 
Amidated fatty acids, 276 
Amido-acids, 174 
Ampelopsis, 396 
Amphibious plants, 342 
Amygdalin, 244, 259 
Anabena, 203 
Anabolism, 129, 264 
Anaérobic plants, 309 
Anesthetics, action of, 418 
Analysis, destructive, 134 
Ananassa, 258 
Anchorage of plant, 18 
Anemophilous flowers, 449 
Antheridia, 434 
Antherozoids, 432 ; motion of, 444 ; 
attraction of, 445 
Anthoceros, 201 
Anthocyan, 273, 328 
Anthoxanthum, 452 ' 
Antipodal cells, 442, 444 
Apheliotropism, 386 
Aphydrotropism, 400 
Apogamy, 459 
Apogeotropism, 390 
Apospory, 459 
Apostrophe, 371 
Aquatic plants, structure of, 336 
Arabinose, 48 
Archegonia, 434 
Ascending sap, 71 
Ascogonidia, 429 
Ascomycetes, 434 
| Ascospores, 429 
' Asexual reproductive cells, 426 
Ash of plants, composition of, 135 
Ash of plants, composition of, 135, 
176; effect of its constituents on 
vegetation, 183 
Ash of proteins, 166 
Asparagin, 172; as a reserve 
material, 244; as w product of 
digestion, 257 
Aspergillus, 256 
Asphyxiation, 306 
Assimilation, 129, 263; (of carbon 
dioxide, see Photosynthesis) 
Auxanometer, 319 
Azobacter, 204 
Azolla, 201, 451 
Azygospore, 459 
Bacu, on nitrogen fixation, 172 
Bacteria, 2,3 
Ba&yYER, on photosynthesis, 156 
Bambusa, 33 
Bark, 24, 232 
461 
