378 



PLANT-LIFE 



Sphaguacese, 138-140 



Sphagnum, 138-139 



Sphenophyllales, 234, 241 



Sphenophylls, 241, 242 



Sphenopteris, 230 



Spike, 205 



Spinach, 212 



Spines, 344 



Spircea ulmaria, 362 



Spirilla, 15 



Spirogyra, 34-38, 43 



Sponges, 4 



Sporangia, 8, 80, 103, 143, 147, 156, 



159, 160 

 Sporidia, 107, 108 

 Sporogonium, 126, 128, 139 

 Sporophylls, 159, 191, 208 

 Sporophyte, 120, 121, 126, 136, 137, 



139, 143, 150 

 Spruce Fir, 181 

 Squirting Cucumber, 327 

 Stachys, 342 

 Stag's-horn Moss, 162 

 Stamens, 173 

 Starch, 19, 21, 272 



formation of, 21-22 

 Starfish, 297 

 Statice limonium, 215 

 Stele, 151 



Stellaria media, 302 

 Sticky- Willie, 280 

 Stigma, 174 

 Stigmaria, 239 



ficoides, 239 

 Stinging-Nettle, 298 

 Stinkhorn Fungus, 97 

 Stipe, 109 



Stitchworta, 213, 347 

 Stocks, 213 

 Stolon, 299 

 Stomata, 21, 137, 153, 159, 255, 262 



264, 336 

 Stonecrop, 266, 361 



Hairy, 339 

 Stone Pine, 190 

 Stoneworts, 248 

 Stork's-Bill, 332, 360 

 Stratified Rocks, 222 

 Stratiotes aloides, 3C1 

 Strawberry-Tree, 215 

 Stromatopteris, 154 

 Strychnine, J" 

 Style, 174 



Sugar, 273 



-Cane, 199, 200 

 Sunflowers," 216 

 Swarm-spores, 9 

 Sweet Briar, 342 



Cicely, 347 



Gale, 212 



Violet, 319, 326 

 Sycamore, 258, 278, 325-326 

 Symbiosis, 113 

 Symbiotic Plants, 285, 290 

 Sympetalae, 206, 207, 208, 209, 214- 



217 

 Symphytum officinale, 343 



Tamus communis, 281 

 Tangles, 70, 76 

 Tap-root, 205 

 TaxaceiB, 185, 245 

 Taxodium distichum, 187 



mexicanum, 187 

 Taxus baccata, 185 

 Teazle, 216, 339 

 Teleutospores, 107, 108 

 Temperature and growth, 274 

 Tendrils, 281 

 Tetraspores, 85, 87 

 ThaZictrum minus, 309 

 Thallophytes, 39 

 Thallus, 39 

 Theca, 136 

 Thecium, 116 

 Thesium, humifosum, 293 

 Thorns, 344 

 Thrift, 215 

 Thuja, 187 

 Thyme, 215 



Wild, 360 

 Thymus Serpyllum, 360 

 Tilia, 328 



argentea, 266 

 Tipula fly, 341 

 Tmesipteris, 163 

 Toadflax, 208 



Bastard, 293 



Ivy-leaved, 332 

 Toadstools, 93, 108 

 Toothwort, 24, 99, 294, 320 

 Tortoiseshell Butterfly, 343 

 " Touch-wood," 94 

 Trama, 111 

 Transpiration, 262-267 

 Traveller's Tree, 202 



