MORPHOLOGY, ANATOMY, AN'D PHYSIOLOGY. 



595 



Shoot, 3, 22. 

 Sieve-plates, 94. 



-tissue, 94 (Figs. 74, 75), 165. 



-tubes, 94. 

 Silicon. 189, 193. 

 Silicula, 474, 535 (Fig. 348). 

 Siliqua, 474, 535 (Fig. 348). 

 Simple conidiophore, 279, 291 (Fig. 

 170). 



hair, 46 (Fig. 31). 



leaf, 35. 



inflorescences, 439, 441. 



sporophore, 54, 285 (Fig. 165). 

 Simultaneous whorl, 10. 

 Sleep-movements, 213. 

 Sliding growth, 147. 

 Sodium, 189, 193. 

 Soft bast. 143. 

 Soredium, 306 (Fig. 186). 

 Sorosis, 472, 501 (Fig. 311). 

 Sorus, 52, 348. 

 Spadix, 439. 

 Spathe, 439. 

 Species, 235. 

 Spermatium, 242, 272 (Fig. 160), 278, 



292, 300. 



Spermatozoid, 59, 241 (Figs. 147, 150, 

 158), 311 (Figs. 192, 193), 351 

 (Fig. 222), 407. 

 Spermogonium, 292, 300 (Fig. 178), 



305 (Fig. 185). 

 Sphaerocrystal, 83 (Fig. 59). 

 Spicate capitulum, 441. 



raceme, 441. 

 Spike, 439 (Fig. 259). 

 Spikelet, 439. 

 Spine, 42 (Fig. 29), 112. 

 Spiral vessels, 74 (Fig. 44). 

 Spire, 14. 

 Spongy parenchyma, 114 (Fig. 92), 



172. 



Spontaneous movement, 206. 

 Sporangium, 51, 243, 278, 374, 396, 



Spore, 2, 50, 230. 



asexually produced, 51, 230. 



development of, 85. 



-reproduction, 50, 227, 230. 



-sac, 338. 



sexually produced, 58, 230. 

 Sporidium, 299, 300 (Figs. 179, 181). 

 Sporocarp, 373 (Figs. 224, 225). 

 Sporogonium,309, 315 (Fis- 196), 319, 



337 (Figs. 206. 208-11). 

 Sporophore. 51, 54, 279, 302. 

 Sporophyll, 43, 51, 55, 56, 176, 348, 



395, 421. 



Sporophyte, 2, 229. 

 Spur, 455. 

 Spurious fruit. 414, 471. 



Spurious tissue, 88. 



whorl, 11. 

 Stamen, 56, 395. 

 Staminate flower, 56, 395, 459. 

 Staminode, 462. 

 Starch, 79, 187, 201. 



-grains, 78 (Fig. 58). 

 -sheath, 185. 

 Stearin, 187. 

 Stele, 101, 116. 

 Stem, 3, 27. 



function of, 169. 

 herbaceous, 27. 

 monostelic, 102, 117. 

 polystelic, 117. 

 -tendril, 27 (Fig. 15), 171. 

 trunk, 27. 



twining, 27 (Fig. 15), 171. 

 winged, 28. 



Stereom, 92, 120 (Fig. 98), 164. 

 Sterigma, 291, 292, 300, 303 (Fig. 



184). 



Stichidium, 271 (Fig. 159). 

 Stigma, 395, 467 (Fig. 283). 

 Stimulus, 211, 222. 

 Stipe, 302. 

 Stipel, 31. 



Stipule, 30 (Fig. 19), 42. 

 Stock, 229. 

 Stolon, 26. 

 Stomata, 107 (Figs. 88, 89) 



function of, 163, 179. 

 Stomium, 364 (Fig. 215). 

 Stratification of cell-wall 74 (Fig. 



46). 



Streaming of protoplasm, 206. 

 Striation of cell-wall, 74 (Fig. 50). 

 Stroma, 291 (Fig. 176). 

 Strophiole, 416. 

 Strychnin, 186. 

 Style, 395, 466 (Fig. 283). 

 Sub-hymenial layer, 303 (Fig. 183). 

 Successive whorls, 10. 

 Succulent fruits, 475. 

 Succubous leaves, 326 (Fig. 201). 

 Sucroses, 187. 

 Sugars, 187, 201. 

 Sulphur, 188, 191. 

 Superficial placentation, 468. . 



Superior ovary. III. 

 Superposed members, 13, 446. 

 Supply of energy, 194. 

 Suppression. 1".-'. 



Suspensor, 347, 887, 393 (Fig. 284), 

 401 (Figs. 238, 239), 425 (Figs, 

 249, 250). 

 Svconus, 472. 

 Symbiosis, 190. -J7:.. 

 Symmetry of body, 4 (Figs. 1,2). 

 of flower, 458 (Figs. 269-278). 



