INDEX 



Abnormal methods of food supply, 

 183 



Absorption, of water 18, 68, of food 

 materials 126, of salts 132, of gases 

 137, of organic food 135, 183 ; 

 conditions of continuous, 130 ; 

 facilitated by C0. 2 131, by acid sap 

 131 ; strength of salts absorbed, 

 132 ; varied amounts of salts ab- 

 sorbed, 133 



Acclimatisation, 366 



Acer, 87 



Aconitum, 439 



JRthalium, 9 



After-effect of stimulation, 398, 408 



Agave, 239 



Aggregation, 390, 405 



Air-chambers, in Isoe'tes, 106; in 

 Marsilea, 107 ; in submerged 

 plants, 108 ; in grasses, 109 ; in 

 leaf of heath, 112 



Albumen, 434 



Albumin, 162 



Albumoses, see Proteoses 



Alburnum, 72 



Alcliemilla, 76, 83 



Alcohol, 256, 301 



Aleurone grains, 235, 236 



Alkaloids, 270 



Alternation of generations, 426 



Aluminium, 129, 175 



Amidated fatty acids, 270 



Amido-acids, 167 



Ampelopsis, 387 



Amphibious plants, 335 



Amygdalin, 238, 253 



Anabolism, 123, 258 



Anaerobic plants, 304 



Anaesthetics, action of, 408 



Analysis, destructive, 129 



Ananassa, 252 



Anemophilous flowers, 439 



Antheridia, 424 



Antherozoids, 423 ; motion of, 435 ; 

 attraction of, 436 



Anthoceros, 195 



Anthocyan, 267, 322 



Anthoxanthum, 442 



Antipodal cells, 432, 434 



Apheliotropism, 377 



Aphydrotropism, 391 



Apogamy, 449 



Apogeotropism, 380 



Apospory, 449 



Apostrophe, 363 



Aquatic plants, structure of, 331 



Arabinose, 42 



Archegonia, 425 



Ascending sap, 66 



Ascidia, 189 



Ascogonidia, 420 



Ascomycetes, 424 



Ascospores, 420 



Asexual reproductive cells, 419 



Ash of plants, composition of, 129, 



171 ; effect of its constituents on 



vegetation, 177 

 Ash of proteins, 161 

 Asparagin, 167 ; as a reserve 



material, 238; as a product of 



digestion, 252 

 Aspergillus, 250 

 Asphyxiation, 300 

 Assimilation, 123, 257 ; (of carbon 



dioxide, see Photosynthesis) 

 Auxanometer, 313 

 Azolla, 195, 440 

 Azygospore, 449 



BACH on photosynthesis, 154 ; on 



nitrogen fixation, 167 

 Bacteria, 2, 3 

 Bacterium termo, relation to oxygen, 



157, 392 



BAEYER, on photosynthesis, 151 

 Bambusa, 29 

 Bark, 20, 226 

 Bast, 22, 52 ; function of, 213, 213, * 



218 



