INDEX. 



All references are to pages. When there are two or more references to the 

 same topic, figures in bold-face indicate the definition or chief discussion of the 

 subject. Italic figures indicate illustrations. 



Absorption, carbon dioxide 165; 

 water 74, 153, 155, 323 



Acacia, leaves 124 



Acetabularia 23, 24 



Achillea, inflorescence 257 



Achlya, sex organs 298 



Acids, carbon 175 



Adaptations 146, 308 



Adiantum 382; embryo 62, 63; 

 leaf 126; spermary 282 



Aeration 171 



Agaricus 377, 404 



Agrimonia, fruit 366 



Ailanthus, fruit 364 



Air, distributing seeds 363; dis- 

 tributing spores 356; effect of 

 composition 312 ; effect of 

 moisture in 316; -plants 152 



Alcanna, corolla 250 



Aldrovandia 346 



Aleurone grains 169 



Algae, eggs 286, 288; fission 8; 

 gametes 273; imprisoned 338, 

 377; in other water plants 334 



Alkaloids 177 



Allium, stem 106 



Aloe, epidermis 323 



Alternation of generations 49, 

 60 



Amanita, fructification 219 



Amorpha, sleep movement 207 



Amorphophallus, leaf 125 



Anabaena 10 



Anabolism 166 



Anagallis, fruit 303; pistil 245 



Anaptychia, apothecium 225 



Angiosperms 237; ovary 291; 



seed 299; spermary 28 r 

 Animals, and plants 336, 338, 



342; distributing seeds 365; 



distributing spores 357 

 Anther 246 



Anthyllis, venation 137 

 Ants and plants 348 

 Apical cell, Chara^, 31; Fucus 



34; liverworts 51; Polysipho- 



nia 32; root 67, 68; shoot 84 

 Apodanthes 340 

 Apogamy 294 

 Apparatus 409 

 Apple, fruit 305 

 Arbor vitas, shoot 97 

 Archegonium 289 

 Arisarum, flower 236 

 Armor, protective 347 

 Artemisia, hairs 322 

 Ash, pistil of 241 

 Asparagus, branches 92 

 Aspidium, pinnule 230; sorus 



231; sporangium 356 

 Asplenium, buds 262; gameto- 



phyte 60 

 Assimilation 162 

 Astragalus, pistil 242 

 Aulacomnium, brood buds 262 

 Automatism 145, 188 

 Auxanometer 180 



Bacteria 10, 11, 12 

 Bacterium aceti 11 

 Balsam, stem 6 

 Barberry, thorns 348 



419 



