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 185, 183; 
conditions of continuous, 130; 
facilitated by CO, 131, by acid sap 
131; strength of salts absorbed, 
132; varied amounts of salts db- 
sorbed, 133 
Acclimatisation, 366 
Acer, 87 
Aconitum, 439 
Aithalium, 9 
After-effect of stimulation, 398, 408 
Agave, 239 
Aggregation, 390, 405 
Air-chambers, ih Jsoétes, 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 
Alchemilla, 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 
Anaérobic plants, 304 
Anesthetics, 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 
Bacu on photosynthesis, 154; on 
nitrogen fixation, 167 
Bacteria, 2, 3 
Bacterium termo, relation to oxygen, 
157, 392 
Barrer, on photosynthesis, 151 
Bambusa, 29 
Bark, 20, 226 
Bast, 22, 52; function of, 213, 216, 
218 
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