INDEX. 



427 



Stipules 121 



St. John's wort, stamens 250, 

 251 



Stolon 90 



Stomata 134; sunken 322 



Stonecrop, flower 259; offsets 

 264 



Storage 107; of foods 168, 169; 

 in leaves 131; in roots 77 



Strawberry, flower 258, 259 ; 

 runners 264 



Streaming of protoplasm 191 



Style 240 



Suberin 6 



Sugar, manufacture 167 ; re- 

 serve 169 



Sugar cane, epidermis 323 



Sundew, leaves 345 



Suspensor 66, 291 



Symbionts 161 



Symbiosis 161, 333 



Symphoricarpus, fruit cells 179 



Sympodial branching, in moss 

 57; in shoot of seed plants 86 



Syrrhopodon, brood buds 262 



Telegraph plant, leaf 206 

 Temperature, effect on growth 



185; on form 314; on water 



plants 328 

 Tendril, of bryony 94\ leaf 130; 



movement of 203; shoot 93 

 Tension, distributing seeds 



362; distributing spores 355; 



of tissues 149, 182 

 Tetragonolobus, sleep move- 

 ments 207 

 Tetrasporangia, of Polysi- 



phonia 227 

 Thallus 22, 25; of Fucus 34; of 



liverworts 49 

 Thickening, secondary, of root 



74, 77; of stem 107, 115 

 Thlaspi, leaf 123 

 Thorn apple, anther 248 

 Thorns 347; leaf 130; shoot 93; 



of Vella 95 

 Thyme, anther 247 

 Tococa, base of leaf 350 

 Torus 236, 258 

 Traction, effect on growth 186 



Trametes 44 

 Transfer of foods 168 

 Transpiration 158; adaptations 



for reducing 318 

 Traps 343 



Trefoil, fruit of tick 366 

 Tropaeolum, leaf 128 

 Tubers 93, 326 

 Turgor 148; distributing seeds 



362; distributing spores 353; 



movements 204 

 Twiners 201, 331 

 Tylanthus, leaf 321 



Ulothrix 21; reproduction 270, 



271; zoospores 269 

 Ulva 26 

 Uncinula 403 

 Urtica, hair 348 

 Utricularia 343, 344, 345 

 Uvularia, leaves 123 



Vacuoles 2, 179 



Vallisneria, distribution of 



spores 356, 357; runners 265 

 Vanda, light seeds 363 

 Vanilla, leucoplasts 5 

 Varnish, on epidermis 321 

 Vascular bundles 71, 72, 100, 



103, 114, 132, 136 

 Vaucheria 22, 23 ; sex organs 



278 

 Vella, thorns 95 

 Venation, leaves 125, 127, 187, 



138 

 Veratrum, pistil 241 

 Vicia, vascular bundles of root 



75 

 Violet, anther 246; fruit 302 



Water, absorption 153, 323 ; 

 distributing seeds 362; dis- 

 tributing spores 356 ; effect 

 of composition 329; effect of 

 movements 328; force raising 

 157; loss 158; movement 156; 

 necessity 152 ; path of 156 ; 

 percentage 151 ; -plants 152, 

 327; salts in 164; storing 325 



Waste products 175 



Wax, on epidermis 321 



