Index 



477 



Streaming of protoplasm, 140, 141 



Struggle for existence, 407 



Strychnine, 125 



Style, 281 



Suberin, 157 



Substances made by plants, 105 



Substitution foliage, 70 



Succulent plants, 269 



Suckers, 381 



Sucrose, 108 



Sugar, in leaves, 24, 27; various, 108 



Sulphur in plants, 126, 128 



Sulphur showers, 309 



Summer, vegetation in, 368 



Sundew, 245 



Super-vitalism, 14, 96 



Survival of fittest, 408 



Suspensor, 353 



Symmetry; in form, 238; 250; in growth, 



369 

 Systematic Botany, defined, 2 



Tannins, 118, 274 



Taxis, 252 



Teleology, nature, 12 



Temperature, and growth, 332 



Tendrils, 67, 68, 243 



Thermonasty, 252 



Thermotropism, 251 



Thigmotropism, 242, 243 



Thought in nature, 147, 402 



Tissues, 157 



Toadstools, 451 



Tone, 253 



Torsions, 374 



Toxicodendrol, 117 



Traction, of water up stems, 216 



Trailers, 464 



Translocation of food, 217; in bark, 219 



Transmission of acquired characters, 

 413 



Transpiration, described, 199; Experi- 

 ment, 199; quantity, 200; determines 

 phenomena, 202; variations in amount, 

 203; effect of heat, 204, of light, 206, 

 208, of dryness, 206, of wind, 206; 

 graph, 205; meaning, 209; and growth, 

 335 



Transpirograph, 203, 204 

 Traumatropism, 251 

 Tree forms, 51, 58, 262 

 Tree of ascent, 449 

 Tropisms, 251 

 Tulip Tree, stipules, 67 

 Tumble-weeds, 392 

 Tumors, 371 

 Turf, 382 

 Turgescence, 384 

 Twin flower, 326, 397 

 Twisted stems, 374 

 Typical, meaning of, 9 



Undergrowth plants, 456, 460 



Unicorn Plant, 396 



Unit characters, 421 



Unity of science, 7 



Uroglsena, 446 



Useless vs. useful science, 4 



Utility of science, 4, 5 



Vallisneria spiralis, 305 



Variations; nature, 407; selection of, 



429; experimental, 430; innate, 431; 



hereditary, 432; spontaneous, 432; 



fortuitous, 433 

 Variegated plants, 436 

 Vascular System, 458 

 Vaucheria, 446 

 Vegetable balls, 376 

 Vegetable ivory, 112 

 Vegetables, improvement of, 428 

 Vegetative multiplication, 279 

 Veins, 52, 53, 221 

 Venation, 53 

 Venus Flytrap, 245 

 Verities; nature of, 9; 18, 24, 28, 35, 80, 



85, 92, 95, 103, 172, 176, 184 

 Vertical position, 263 

 Vetch, pods, 383 

 Violet, flowers, 318; pods, 386 

 Visualization of photosynthesis, 36; 



219, 251 



Vitalism, vii, viii, 13, 14, 96 

 Vitality suspended, 164 

 Volatile oils, 117 



