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 C0 2 137, by acid sap 



137 ; strength of salts absorbed, 



138 ; varied amounts of salts ab- 

 sorbed, 139 



Acclimatisation, 374 



Acer, 92 



Aconitum, 449 



jEthalium, 10 



After-effect of stimulation, 417 



Agave, 245 



Aggregation, 400, 414 



Air-chambers, in Isoetes, 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 



Anabcena, 203 



Anabolism, 129, 264 



Anaerobic plants, 309 



Anaesthetics, 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 a 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 



BACH, on nitrogen fixation, 172 



Bacteria, 2, 3 



BAEYER, on photosynthesis, 166 



Bambusa, 33 



Bark, 24, 232 



461 



