462 



INDEX AND GLOSSARY 



Shade and plants, 223. 



Shadows in trees, 66. 



Sharon, rose of, 62, 341. 



Sheepberry, 429. 



Shelf fungus. Fig. 135. 



Shepherdia, hairs, 298, Fig. 469. 



Shepherd's purse, 242, 368; capsule, 160, 



Fig. 286. 

 Shoot: a new plant from root of old 



plant, (53). 

 Shooting star, 422. 

 Shrubs: plants that remain low and 



produce shoots from base, (15). 

 Sickle-pod, 366. 

 Sieve tissue, 280. 

 Silene, 354. 



Silicle: short fruit of Cruciferse, (318). 

 Silique: long fruit of Crucifers, (318). 

 Silkweed, 418. 

 Silviculture, 257. 

 Simple leaf, 95, Fig. 138. 

 Simple pistil: of one carpel, (271), Fig. 



207. 

 Simple stem, 15, Fig. 20. 

 Sisyrinchium, 338. 

 Skullcap, 402. 

 Skunk cabbage, 149, 150, 233, 276, 327, 



Fig. 446. 

 Sleep of leaves, 49. 

 Slips, 23. 

 Smartweed, 130, 143, 156, 230, 351, Fig. 



514. 

 Smilacina, 333. 



Smilax of florists, 107, 333, Fig. 493. 

 Smilax tendril, 115. 

 Snakehead, 406. 

 Snapdragon, 145, 406, Fig. 243. 

 Snowball, 131, 153, Figs. 264, 265; 



Japanese, 429. 

 Snowberry, Fig. 287. 

 Snowdrop, 336, Fig. 495. 

 Snowflake, 337. 

 Soapberry family, 375. 

 Soapwort, 354. 

 Societies, 228. 

 Sod society, 231, Fig. 399. 

 Softwood cutting, 23. 

 Soil and plants, 209, 213. 

 Solanaces, 408. 

 Solanum, 112, 248. 

 Solidago, 442. 



Solitary flowers, 119, Fig. 181. 

 Solomon's seal, 18, 334; false, 333; two- 

 leaved, 333. 

 Sonchus, 435. 

 Soredia, 193. 

 Sorghum, 139, 152, 250, 273, 275, Figs. 



20, 232-234. 

 Sori, 9, 191. 



Sorrel, 166, 243, 350, Fig. 512. 

 Sow thistle, 435. 



Soybean, Fig. 126. 



Spadix: thick or fleshy spike of certain 

 plants, (302), Figs. 198, 251. 



Spanish moss, 94. 



Spanish needles, 440. 



Spathe: bract surrounding or attending 

 a spadix, (302), Fig. 251. 



Spatterdock, 362. 



Spatulate, 99. 



Spearmint, 402, Fig. 543 



Species, 308. 



Specularia, 430. 



Speedwell, 408. 



Spencer, quoted, 240. 



Spermaphytes, 183. 



Spermatozoids, 197. 



Sperm-cell, 187. 



Sphagnum moss, 210, Fig. 374. 



Spider-lily, 301. 



Spiderwort, 264, 266, 335, Fig. 438; 

 family, 334. 



Spike: compact, more or less simple, in- 

 determinate cluster, with flowers ses- 

 sile or nearly so, (250), Figs. 185, 186, 

 197. 



Spikelet: a secondary spike; one of a 

 compound spike, (306). 



Spikenard, false, 333. 



Spines, 108, 109, Fig. 168. 



Spiranthes, 341. 



Spirea, 392; inflorescence, 121, Fig. 193. 



Spirogyra, 185, 186, 201, 263, 265, Figs. 

 340, 341. 



Spleenwort, 323. 



Sporangia, 186; of ferns, 179; stamens, 

 129. 



Sporangiophore, 188. 



Spore: a simple reproductive body, usu- 

 ally composed of a single detached cell 

 containing no embryo, 5, 92, (344), 

 187. 



Spore-case, 179. 



Sporodinia, 189. 



Sporogonium, 195. 



Sporophyll, 183. 



Sporophyte, 181, 201. 



Spring beauty, 371. 



Spruce, 14, 15, 64, 98, 232, 325, Fig. 483; 

 and light, 44; leaf, 102. 



Spruce, 162; cone, Fig. 298; seed, Fig. 297. 



Spurge, 110, 352; family, 351. 



Squash, 251, 289; fruit, 162, Fig. 296; 

 germination, 171, 178; cell, 264, 265; 

 leaf, 100; prickles, 109; root-pressure, 74. 



Squaw-vine, 427. 



Squirrel corn, 364. 



Stamen: pollen-bearin organ, (270), Figs. 

 206, 209. 



Staminate: having stamens and no pis- 

 tils, (274), Figs. 228-230. 



Stard, dissecting 132, Fig. 217. 



