INDEX 
473 
Smilax, ornata, 303 
Smuts, 267 
Soap wort Family, 358 
Soft bast, 144 
Solanaceae, 390 
Solaneae, 191 
Solanine, micro-chemic test for, 85 
Solanum N. F., 391 
Solanum, 391 
carolinense, 391 
Dulcamara, 391 
tuberosum, 85 
Sorbinose, 74 
Soredia, 281 
Sorghum, 75, 299 
Sorosis, 2ri 
Sorus, 40, 290 
Sour Gum, 378 
Soy Bean, 344 
Spadix, 179 
Sparganium, 409 
Spathe, 178 
Species, 2 
Spermacia, 271 
Spermagonia, 271 
Spermatocyte, 43 
Spermatophyta, 292 
outline of, 4 
Spermatozoid of fern, 43 
Spermoderm, 213 
Sperms, 245 
Sphaerella, 232 
Sphagnales, 286 
Sphagnum, 286 
acutifolium, 284 
squarrosum, 284 
Spicebush, 331 
Family, 330 
Spiderwort, 66 
Spigelia, 382, 383 
marilandica, 384 
Spike, 179 
Spinach, 323 
Spine, 138 
Spirilla, types of, 221 
Spirillum, 221 
cholerae asiaticae, 224 
obermeieri, 224 
Spirochaeta, 221 
Spirogyra, 236 
life history of, 236, 237, 238 
Spirosoma, 221 
Sporangiophores, 248 
Spore, 41 
brand, 267 
Sporogonium, 283, 286 
Sporophore, 274 
Sporophyte, 33, 44 
Spruce Gum, 295 
Spurge Family, 355 
Spur shoot, 47 
Spurs, sepaline, 184 
Staff Tree Family, 356, 357 
Stage micrometer, 31 
Stain, for “acid proof” bacteria, 226 
Broca’s differential, 227 
Delafield’s haematoxylin, 29 
Ehrlich’s gentian violet, 226 
Gram’s, 223 
Lo flier’s methylene-blue, 226 
Van Ermengem’s flagella, 226, 227 
Ziehl’s carbol-fuchsin, 226 
Staining, 21, 22, 28, 29 
of bacteria, 224-227 
Stamen System, 188 
Stamens, color of, 190 
connation of, 189 
definite, 188 
diadelphous, 189 
didynamous, 189 
epigynous, 189 
gynandrous, 189 
histology of parts, 190-195 
hypogynous, 189 
indefinite, 188 
insertion of, 189 
monadelphous, 189 
perigynous, 189 
