298 



GENERAL INDEX. 



Root-structure, 46, 95 

 Root-tubercles, 16, 148, 353 

 Rosette, 106 

 Ruuncrs, 158 



Sacharomyces, 44 

 Sap, of cells, 24 

 Saprophytes, 143 

 Scalariforni vessels, 35 

 Scar- tissue, 58 

 Sclereuchyma, 41, 233 

 Scission- layer, 58 

 Scission- tissue, 235 

 Sclerolium, 199 

 Scorpioid cyme, 183 

 Scutelliini, 143 

 Secondary bundles, 35 



roots, 169 



spirals, 174 

 Secretion, 152 

 Seciio aurea, 175 

 Seed, 142, 231 



Seijmentation of the apical cell, 169 

 Seia<,nuella, 204 

 Selection. 248. 257 

 Self-fertilization, 239 

 Self-pollination. 238 

 Sepals, 215 



Septicidal dehiscence, 232 

 Septifragal dehiscence, 332 

 Sexual affinity, 241 



generation, 203 



reproduction, 185 

 Sheath, of leaf, 159 

 Shoot, 165, 183, 184 

 Sieve- cells, 74 

 Sieve- plates, 74 

 Sieve pores, 74 

 Sieve- tubes, 74 

 Silique, 232 

 Siuistrorse, 174 

 Skeleton-cells, 87 

 Sleep of plants, 273 

 Soredia, 199 

 Special creation, 244 

 Species, 241, 244 

 Species, origin of, 244 , 

 Species, hybrid, 241 

 Spectrum of chlorophyll, 189 

 Spermatia, 198 

 Spermatozoid, 189 

 Spermogonia. 198 

 Sphacelium, 199 

 Spbaero-crystals, 24 

 Spike. 182 

 Spikelet, 183 

 Spiral arrangement, 171 

 Spiral lines, 171 

 Spiral theory, 171 

 Spiral vessels, 35 

 Splint-wood, 92 

 Spongy parenchyma, 136 

 Spontaneous generation, 345 

 Sporangia, 207 



Sporangiophores. 195 



Spore, 188 



Sporidia, 198 



Sporocarp, 196 



Sporogonium, 203, 306 



Stamen, 22;5 



Stuminal leaves, 165 



Staminodia, 218 



Starch. 17, 151 



Starch- forming corpuscles, 13 



Starch -grains, 17 



Stem, 80, 157 



Stem structure, 46, 80 



Stereids, 41 



Stereome, 41 



Stigma, 313 



Stimuli, conduction of, 381 



Stipule, 159 



Stomata, 135 



Stone-fruit. 333 



Storage-tissue, 151 



Stratification, 17, 31, 36 



Striation of cell-wall, 36 



Strawberry, 331 



Strugirle for existence, 346 



Stylai^duct, 313 



Style, 212 



Siiberin, 31 



Subsidiary cells, 137 



Sulphur, 254 



Summer-spores, 197 



Suppression, 218 



Surface-growth, 37 



Suspeusor, 211 



Swarm spore, 195 



Swelling, 20 



Symbiosis, 145 



Symmetry, 319 



Sympetalous, 61 



Sympodium, 180 



Syncarpous. 228 



Synergida;, 213, 229 



System, natural, 386 



Systems of organs, 155, 179 



Tannin, 6. 153, 256 

 Tapetal cells, 227 

 Taxonomy, 188, 286 

 Tegmen, 235 

 Tegument, 53 

 Teleiitospore, 197 

 Temperature, 268 

 Tendrils, 281 

 Tension, 64, 363 

 Tentacle. 149 

 Testa, 235 

 Tetrad, 227 

 Tetrarch, 97 

 Tetraspore, 194 

 Thallome. 156, 163 

 Theory of descent, 344 

 'i'hermotrnpism, 376 

 Thickenings, 3il 

 Tilletia, 198 



