INDEX AND GLOSSARY 



429 



Snowflake, 304. 



Soapberry family, 343. 



Soapwort, 321. 



Societies, 219. 



Softwood cutting, 24. 



Soil and plants, 200; and variation, 206; 

 holds moisture, 70; water from, 64. 



SolanacesB, 377. 



Solanum, 108, 378, Figs. 42, 219, 261. 



Solidago, 410. 



Solitary flowers, 115. 



Solomon's seal, 301; filse, 301; two- 

 leaved, 301. 



Sonchus, 404. 



Soredia, 186. 



Sori 172, 184. 



Sorrel, 318, Fig. 453. 



Spadix: thick or fleshy spike of certain 

 plants, (280). 



Spanish bayonet, 162; moss, 88. 



Spathe: bract surrounding or attending 

 aspadi.x, (280), 141. 



Spatterdock, 329. 



Spatulate, 94. 



Spearmint, 370, Fig. 484. 



Species, 275. 



Specularia, 398. 



Speedwell, 376. 



Spencer, quoted, 231 



Spermatozoids, 190. 



Sperm-cell, 180. 



Spiderwort, 235, 302. 



Spike: compact more or less simple, in- 

 determinate cluster, with flowers ses- 

 sile or nearly so, (238). Figs. 174, 175. 



Spikelet: a secondary spike; one of a 

 compound spike, 146. 



Spikenard, false, 301. 



Spines, 104, 105. 



Spiranthes, 309. 



Spirea, 360; inflorescence, 117, Fig. 179. 



Spring beauty, 339. 



Spirogyra, 178, 233, 234, Fig. 313, 314. 



Spleen wort, 291. 



Sporangia of ferns, 172; stamens, 124. 



Sporangiophore, 181. 



Spore: a simple reproductive body, usu- 

 ally composed of a single detached cell 

 containing no embryo, 5, 86, 172, ISO. 



Spore-case, 172. 



Sporogonium, 188. 



Sporophyll, 176. 



Sporophyte, 174, 194. 



Spruce, 15, 293. Figs. 270, 271. 424. 



Spruce cone, Fig. 271; seed. Fig. 155. 



Spurge, 320. 



Squash fruit, 155, Fig. 269; germination. 

 171; Guinea, 378, Fig. 261; hairs, 105, 

 235; roots, 268. 



Squirrel corn, 332. 



Squirrels and birds. 47. 162. 



Stains, 241. 



Stamen: pollen-bearing organ, (253). 



Staminate: having stamens and no pis- 

 tils, (257). 



Stand, dissecting, 127, Fig. 201. 



Staphylea, 346. 



Star of Bethlehem, 299. 



Starch and sugar. 246; as plant-food. 64; 

 discussed, 247-249; how made, 77, 78; 

 storage of, 31. 



Star-grass, 305. 



Steeple, compared with plants, 18. 



Stick-seed, 382. 



Stellaria media, 323, Fig. 457. 



Stellate, 233. 



Stem, how elongates, 17; structure, 259; 

 system, 14; tubers, 33. 



Stemless plants, 15. 



Sterile flower: no stamens or pistils, 

 (257). 



Stick-tight, 162, 382. 



Stigma: part of the pistil wliich receives 

 the pollen, (256). 



Stipel: stipule of a leaflet, (196). 



Stipule: a certain basal appendage of a 

 leaf, (194); as spines, 105. 



Stock, 334. 



Stock: the part on which the cion is 

 grafted, (69). 



Stolon: a shoot which bends to the 

 ground and takes root, (56). 



Stomate, 75, 271, 273. 



Stone fruit, 153. 



Storehouses, 31. 



Strawberry, 355, 356, Fig. 475; plant. 

 15. 21; fruit. 153, 155, Fig. 264. 



Straw lilies, 300. 



Struggle for existence, 52, 209. 



Strychnin, 246. 



Style: elongated part of the pistil be- 

 tween the ovary and stigma, (256). 



Stylophorum, 331. 



Suberin, 236. 



Suckers, 54; of fungi, 86. 



Sugar, 245, 246. 



Sulfur, 72. 



Summer-spore, 183. 



Sundrops, 365. 



Sunflower, 3, 19. 407, Figs. 3, 4, 23, 27; 

 doubling, 145; family, 400; inflores- 

 cence, 116, Fig. 177; rays, 143; society 

 225; transpiration in, 82. 



Sunlight and plants, 42, 214. 



Supernumerary buds: more than one in 

 an axil, (87). 



Suri'ival of the fittest, 231. 



Swamp plants, 199, 219. 



