44 8 



INDEX 



Telekia speciosa, irritable stamens of, 81. 



Temperature, causes of rise of, in active 

 pulvinus, 413 ; influence of, on auto- 

 genie movement, 29 ; - - on chemo- 

 taxis, 354; -- on ciliary movement, 

 271 ; on conjugation, 305 ; on 

 dehiscence and dispersal, 153; on 

 electrical conductivity, 392 ; on 

 excitability, 69 ; on formation of 

 vacuoles, 295 ; on geotropism, 250 ; 



on irritability, 203, 206 ; on move- 

 ments of zoospores, 315, of pul- 

 sating vacuoles, 298, 317 ; on power 

 of movement, 140, 141 ; on produc- 

 tion of electricity, 395, 396 ; of heat, 

 367, 368, 375 ; - on protoplasmic 

 streaming, 288, 313; on protoplasm, 

 308, 316, 317 ; on rheotropism, 

 184 ; on spontaneous movements of 

 Desmodium, 22; on thermonastic 

 flowers, 98 ; on transference of 

 stimuli, 94 ; on tropic irritability, 225 ; 

 movements due to changes of, 112-16 ; 

 thermoelectric measurement of, 371, 

 Fig. 66 ; uses of rises of, 368. See also 

 Heat. 



Temperature of plants, 379; influence of 

 conduction on, 381 ; of radiation 

 on, 380 ; of stimulation on, 78 ; 

 of transparency on, 366. 



Tendril-climbers, 42 ; disks of, 47 ; influ- 

 ence of gravity on, 48. 



Tendrils, chemonastic responses of, 85 ; 

 influence of absence of oxygen on, 143; 



of darkness, 141, of ether, 144; 



of gravity on nutation of, 28 ; of 

 induction-shocks on, 145 ; of tem- 

 perature on nutation of, 29 ; latent 

 period of, 68 ; pits in, 65, 66, Fig. 25 ; 

 spiral coiling of, 42; thermonasty of, 

 113; uses of, 71. 



Terminology, fictitious value of, 117. 

 Ternetz, 284 ; on streaming, 290. 

 Testudinaria elephantzpes, twining of, 38 ; 



T. sylvatica, 38. 

 Tetramitus rostratus, chemotaxis of, 347, 



Thallophyta, mode of curvature in, 14. 



Thate, 247. 



Thermocleistogamy, ico. 



Thermoelectric measurement, 371, Fig. 64, 

 376. 



Thermonastic movements, 97, 112; uses 

 of, ico. 



Thermotaxis, 317. 



Thermotonus, influence of various factors 

 on, 314, 3I5> 3i6. 



Thermotropism, 176, 420. 



Thigmotaxis, 358. 



Thuret, 324, 325, 346; on influence of tem- 

 perature on escape of zoospores, 153. 



Tilia, epinasty of, 254; geotropic twigs, 

 232 ; T. europaea, 415. 



Tiliaceae, motile stamens in, 82. 



Tissues, distribution of irritability in, 226 ; 

 influence of, on direction of streaming, 

 292. 



Tissue-strains, action of, in dehiscence, 147 ; 

 curvatures due to, 12 ; importance of, 

 for rapid movement, 9; influence of, 

 on curvature, 226, 241 ; on helio- 

 tropism, 227, 238 ; on thickening of 

 cell-wall, 245. 



Tompa, 394, 397. 



Tondera, 417. 



Tone, changes of, 202, 206 ; in photo- 

 taxis, 322, 323 ; definition of, 6 ; influ- 

 ence of chloroform and injury on, 203, 

 205 ; of oxygen on, 202 ; of, on 

 chemotactism, 354. 



Tonotaxis, 178. 



Torenia, closure of stigma of, 82. 



Torsion, absence of, in circumnutation, 21 ; 

 influence of, on direction of streaming, 

 292 ; origin of, 24, 257-60 ; in twiners, 

 41. 



Tortism, definition of, 155. 



Touch-corpuscles in plants, 65. 



Townsend, 144, 305. 



Trachelomonas hispida, galvanotaxis of, 361 . 



Tradescantia^iT., 314, 341 ; nuclear move- 

 ments of, 275 ; rate of streaming in, 

 284; 7. discolor, epidermis of, 181, 

 Fig. 38 ; T.fluminensis, 417 ; geotropic 

 nodes of, 231 ; transference of stimuli 

 in, 200, 205, and in 7. zebrina, 205 ; 

 T. virginica, inductionized cell of, 356, 

 Fig. 63 ; localized geotropism of, 225, 

 235 ; transference of stimuli in, 205. 



Translocation, energetics of, 409. 



Transpiration, influence of autonomic move- 

 ment on, 25 ; on opening of flowers, 

 118; on orientation of chloro- 

 plastids, 332 ; on production of 

 heat, 366, 368; on temperature, 

 37 2 > 373 J stimulatory action of, 65, 66. 



Transplantation, influence of, on irritability, 

 204. 



Trapa, 164. 



Traube, on tropism, 223. 



Traumatropism, 185 ; excitation of, 186 ; 

 nature of, 187, 188. 



Trees, supposed geotropic curvature of, 12 ; 

 temperature of, 381. 



Trepomonas agilts, 421 ; chemotaxis of, 



347, 351- 



Treub, on hook-climbers, 45. 



Treviranus, 22, 80, 222, 289. 



Trianea, 314; 71 bogotensis, action of 

 ammonia on, 343, Fig. 60. 



Trientah 's europaea, changes of tone in, 206 ; 

 tropism of runners of, 164. 



Trtfolium, 294 ; changes of rigidity in 

 pulvinus of, 135 ; expansive energy 

 of, 32 ; leaf-movements of, 23, 26 ; - 

 influence of gravity on, 27 ; 7. pra- 



