556 



INDEX 



tion, 1 10 ; products of, in nitrogen assimi- 

 lation, 138; amount of products of, 114, 

 116. 



Atavism, 373. 



Autonomous movements, 428, 521, 528 ; 

 induced by internal stimuli, 527 ; induced 

 by variation, 528 ; induced by growth, 

 529. 



Autotrophic nutntion, 177. 



Autotropism, 448 ; in geotropic curvature, 

 432, 448 ; in haptotropic curvature, 493 ; 

 in mechanical curvature, 493 ; in nycti- 

 tropic curvature, 507. 



Auxanometer, 287. 



Averrhoa, autonomous movements in, 528. 



Axillary bud, 278. 



Bacteria, movements, see Natatory move- 

 ments, Chemotaxis, Aerotaxis, &c. ; nu- 

 trition of, see Heterotrophic plants. 



Bacterium radicicola, 237. 



Bacteroids, 237. 



Base, 273 ; in regeneration, 330. 



BasidioboluS) development of, 248 ; depen- 

 dence of, on nutrition, 248. 



Beggiatoa, 221 ; organic nutrients of, 223, 

 229 ; oxidation of sulphuretted hydrogen 

 by, 221 ; oxidation of sulphur by, 222; 

 oxygen requirements of, 222. 



Benzol-derivatives as nutrients, 180. 



Bilateral, 276. 



Bleeding, 50 ; significance of, 56; conditions 

 of, 53; duration of, 51 ; pressure in, 52 ; 

 local, 54 ; mechanics of, 54 ; sap, 51. 



Bordered pits, 68. 



Branches, amputation of, 351 ; autotropism 

 in, 449; essential angle of, 449 ; excentric 

 thickening in, 3 1 4 ; plagiotropism of, 449 ; 

 factors in the direction of growth of, 449 ; 

 change in, to orthotropy, 449. 



Branching, 26 ; of the leaf, 278 ; dichoto- 

 mous and lateral, 274 ; of the shoot, 278 ; 

 of the root, 283. 



" Budding " in horticulture, 333. 



Buds, propagative, 362, 365. 



Butyl-alcohol, as a product of fermentation, 

 214. 



Butyric acid, as a product of fermentation, 

 217, 218. 



Caesium, 84. 



Calciphilous, 99. 



Calciphobous, 99. 



Calcium, 84 ; oxalate, 141. 



Callus, origin of, 328 ; formation of mem- 

 bers from, 329. 



Cambium, 294, 350. 



Cane sugar as a reserve, 162. 



Capacity, 341 ; selective, 20. 



Capillarity, in water conduction, 72. 



Carbohydrates, 4 ; as products of assimila- 

 tion, 115; as respiratory material, 196; 



as fermentable material, 208 ; as re- 

 serves, 162, 163; relation of, to fats, 

 158. 



Carbon-assimilation, in autotrophic plants, 

 see Carbon-dioxide ; in heterotrophic 

 plants, 177 ; products of, 103, no. 



Carbon compounds, nutritive value of, 178, 

 179- 



Carbon-dioxide, assimilation of, see Assimi- 

 lation ; dependence of, on external factors, 

 119, 123, 124; on chlorophyll, 103; on 

 light, 103; absorption of, 118-22; ex- 

 cretion of, by the root, 95 ; source of, 103 ; 

 occurrence of, 118, 119; decomposition 

 of, 103, up. 



Cardinal points of temperature, 124, 201, 

 299, 526. 



Carnivorous plants, see Insectivorous 

 plants. 



Catalytes, 152. 



Catasetum, slinging movements in, 426. 



Cell aggregates, 272. 



Cell-nucleus, 6, 268 ; movements of, 553. 



Cells, rounding off of, 296 ; mature, 296 ; 

 structure of, 6 ; as fundamental units, 

 258 ; embryonic, 295 ; form of, 296 ; 

 contents of, 297 ; osmotic characters of, 

 13 ; regeneration of, 380 ; growth of, 258; 

 fusion of, 297 ; division of, 268. 



Cell-sap, 6, 7. 



Cell- wall, 297 ; formation of, 260 ; stretch- 

 ing of, due to osmotic pressure, 419 ; 

 lamellation of, 266 ; growth of, by apposi- 

 tion, 262, 266 ; cessation in growth of, 

 267 ; significance of the nucleus in 

 growth of, 268 ; osmotic pressure in 

 growth of, 265 ; growth in thickness of, 

 265 ; growth in surface of, 260 ; inter- 

 calary growth in, 261 ; growth by intus- 

 susception of, 262, 264 ; growth by cap 

 formation in, 263 ; growth by interpola- 

 tion of protoplasm in, 266; growth by 

 plastic stretching of, 263 ; at the apex, 

 261 ; reduction of tension in, 421. 



Cellular plants, 258. 



Cellulose, as a reserve material, 158 ; disso- 

 lution of, by cytase, 158 ; by Fungi, 183 ; 

 fermentation of, 218. 



Centrifugal force, 430. 



Centrosome, 368. 



Chain, Jamin's, 71. 



Chain of releasing stimuli, 525. 



Chemical stimuli, in relation to spores of 

 Fungi and to pollen, 317 ; influence of, 

 on form, 317, see also Chemotropism, 

 Chemotaxis, Drosera, Galls, Poisons, 

 Mimosa, Tendrils. 



Chemotaxis, 541 ; by malic acid, 542 ; apo- 

 batic, 545; significance of, 542; by gases, 

 546 ; negative, 545 ; positive, 545 ; sti- 

 mulative agents in, 542, 545, 547 ; per- 

 ception of stimulus in, 547 ; liminal in- 

 tensity in, 543 ; repulsion in, 544 ; stro- 



