354 



INDEX. 



Scropliularia, 306 



Scrophulariacea3, 333 



Scutellum, 266 



Sea-lettuce, 157 



Secondary roots, 396 



Sedge, 356, 335 



Seed, 318, 339, 341, 343 



SelaglneaG, 334 



Selaginella, 333, 234 



Selaginellaceac, 334 



Selaginelleae, 332 



Sepals, 304 



Septoria, 198 



Sequoia, 349 



Sexless plants, 135 



Sexual plant. 307, 319. 238 



Sexual reproduction, 113 



Sliepherd's-purse, 255, 313 



Sbield-ferus, 235 



Shoot, 67 



Shrubs, 393 



Sieve-tissue, 38 



Sigillariacese, 335 



Sigillarids, 835 



Silica, 7 



Silique, 316 



Simarul)ace8e, 339 



Simple Fruit-tangles, 168 



Simple leaves, 396 



Simple Sac-fungi, 175 



Siphoneae. 134, 148 



Skeletal system, 39, 46 



Slime-moulds, 130 



Small -pox, 139 



Smut of Indian corn, 196 



Smuts, 195 



Snowdrop, 373 



Snowfiake, 373 



Soapworts, 338 



Soft bast, 51 



Soft tissue, 31 



Solanaceas, 333 



Sorosis, 318 



Sorus, 324 



Southern Pine, 348 



Spadix, 303 



" Spawn " of mushrooms, 203 



Spermatia, 188 



Spermatoph^ta, 236 



Spermogone.=, 188 



Sphaeropsidese. 198 



Sphserotheca, 179 



Sphaguacese, 215 



Sphagnum, 216 



Spiderworts, 333 



Spike, 303 



Spines, 69 



Spiral vessels, 81 



Spirillum, 128 



Spirochaete, 128 



Spirogyra, 143, 147 



Spleen worts, 335 



Spontaneous generation, 139 



Sporangia, 71, 132, 145, 223 



Spore-cases, 235 



Spore-dots, 234 



Spore-fruit, 167 



Spores, 129, 133, 144 



Spore-tangles, 133 



Sporids, 193 



Sporocarp, 167 



Sporophore, 307, 219, 333, 336 



Sporophyte, 307 



Spot-fungi, 198 



Spurgeworts, 330 



Stackhousiese, 337 



Stamens, 69, 237, 249, 304, 308 



Star-apples, 333 



Starch. 14 



Starch, digestion of, 80 



Stem, 68, 391 



Stemonaceee, 323 



Sterculiaceae, 330 



Stereuin, 202 



Sterigmata, 178 



Sticta, 186 



Stigma, 252, 310 



Stinkhorn, 300 



Stinking-smut, 197 



Stipules, 396 



St. John's- worts, 330 



Stomata, 44 



Stoneworts, 303 



Stony tissue, 33 



Storaxworts, 333 



Storing of reserve material, 81 



Streptococcus, 139 



Strobile, 318 



Strychnia, 83 



Style, 353, 310 



Stylospores, 183 



Styraoacese, 333 



Suberin, 6 



Sucrose, 18 



Sugar, 18 



Sugarcane, 373 



