INDEX 



(Asterisks denote Illustrations.) 



Abies, 439 ; alba, *440, 442 



Abietoideae, 439 



Absorptive power of soil, 176, 183 



Absynthin, 206 



Acacia,' '557, 558 ; phyllodes, 36 ; pycnan- 



tha, *46 ; sphaerocephala, 213, *214 

 Acantliaceae, 585 

 Acanthorrhiza, root- thorns, 43 

 Acaulescent plants, 28 

 Accessory fructifications, 343 

 Acer, *536, 537 

 Aceracea, 536, 537 

 Acetabularia, *328 

 Achene, 460 



Achillea, *448, 598, 599 

 Achlya, *346 



Acid from roots, on marble, 183, 184 

 Aconitin, 206 



Awnitum, *448, 511, *512-514 

 Acorus, *474, 475; ethereal oils, 73; 



root, *105 

 Acrasieae, 305 



Acrocomia, germinal pore, 294 

 Acrogynous Jungermanniaceae, 390 

 Acropetal development, 12, 225 

 Actaea, 511 



Actinomorphic plants, 16, 453 

 Acyclic flowers, 451 

 Adansonia, 239 



Adder's Tongue Fern, Ophioglossum 

 Adonis, 511, 514 

 Adventitious shoots, 20, 225 ; roots, 41 ; 



buds, 144 ; bulbs, 278 ; germs, 278, 



*279, *457 

 ^Ecidiospores, 364, 365 

 Mddium, *364, 365, 367 ; pathological 



effects of, 155 

 Aerating roots, 43 

 Aerobiouts, 213 



Aerotropism, 263 ; pollen grain,j281 

 ^Esculin, 74, 205 

 AesciUui, 537 ; bud-scales, 33 ; glandular 



colleters, 100 



^Estivation, 37, 446 



Aethalium, 304 



Aethvsa, *549, 550 



After-effects, 238, 256 



Agar-agar, 337 



Agaricineae, 371 



Agaricus, hypha, *60 ; phosphorescence, 

 223 



Agathis, 439, 442 



Agave, 185, 204 ; stem, 28 



Aggregatae, 594 



Agrivwnia, 554 



Agropyrum repens, 482 



Agrostemma, *509 



Agrostideae, 480 



Air stomata, 95, *190 



in intercellular spaces, 87, *108, 221 



Aim, 480 



Aizoaceae, 509 



Ajuga, 587 



Alaria, 334 



Albuminates of the protoplasm, 54 



Albumiuous substances, formation of, 201 



Alburnum, 124 



Alciutmilla, *451, *553, 554 



Alcoholic fermentation, 211, 212 



Alder, Alnus 



Aleurone, 70, *71 ; a reserve material, 205 



Alexine, 212 



Algae, Green, 318 ; forms of, 11 ; chloro- 

 phyll bodies, 57 ; albumen crystals, 



71 ; apical cells, 148 ; symbiosis with 

 lichens and animals, 213 ; phosphor- 

 escence, 223 



Red, Rhodophyceae 

 Algal Fungi, 341, 343 

 Alisma, 483 ; plantain, shoot of, ''457 

 Alismaceae, 482 

 Alkaloids, 54, 74, 206 

 Allantoin, 203 

 Allium, 466, 467 ; bud, 17 ; fats and oils, 



72 ; Ci'pa, adventitious root of, "110 ; 

 rotation of ovaries, 258 



