INDEX. 



407 



Respirometer, 192. 

 Revolution of Twiners, 236. 

 Rhizines, 309, 311. 

 Rhizoids, 318, 329, 352. 

 Rhizome, 342. 

 Rhizophore, 358. 

 Ricin, 38. 



Root Absorption, 220. 

 Root-apex, 109, 114. 

 Root-cap, 109, 114. 

 Root-hairs, 109, 110. 

 Rootlets, Origin of, 110, 111. 

 Root-pressure, 217. 

 Root S tructure, 111. 

 Rose, 74. 

 Rust (Puccinia), 303. 



Saccharomyces (Yeast), 

 Salicin, 72. 

 Saprophyte, 116, 288. 

 Scalariform "tracheids" of Fern, 



347. 

 Schultze maceration method, 69, 



93, 106. 

 Sclerenchyma, 87, 90, 96, 97, 



100, 345. 

 Scots Pine, 363. 

 Scutellum, 65, 140. 

 Section-cutting, 10. 

 Seedlings, 134. 

 Seed structure, 135, 137-140. 

 SdagineUa, 357. 

 Sensitive Plant, 246. 

 Sieve-plate, 91, 92, 106. 

 Sieve-tubes, 90, 91, 92, 106, 345. 

 Silica, 82. 



" Sleep movements," 257. 

 Soredium, 312. 

 Sorus, 343. 

 Soxhlet fat-extraction apparatus, 



85. 



Spermatia, 308, 312. 

 Spermogonium, 307, 312. 

 Sphaerella (Haematococciis), 263. 

 Sphaerotheca, 298. 

 Spirogyra, 35, 264. 

 Spongy tissue, 118, 120. 

 Sporangium, 343, 357. 



Spore-mother-cell, 327, 350. 



Spore-sac, 337. 



Sporidium, 305. 



Sporodinia, 292. 



Sporogonium of Funaria, 322, 



329, Pdlia, 317, 321. 

 Sporophyll, 357. 

 Spurge, 80, 117. 

 Staining, 19. 

 Starch, 53, 56. 



Starch grains, 57, 96, 117, 169. 

 Stele, 102. 

 Stereome, 100. 

 Sterigma, 295. 

 Stigma, 128. 

 Stomata, 91, 99, 118, 121, 125, 



127, 212, 339. 



Streaming of protoplasm, 29. 

 Stropping, 13. 

 Style, 128. 

 Sucrose, 53. 

 Sundew, 250. 

 Sunflower, root-tip of, 114 : seed 



of, 44, 137 ; seedling of, 137 ; 



stem of, 95. 

 Suspensor, 131. 

 Synergids, 129. 



Tannins, 73. 

 Tapetum, 350, 361. 

 Tartaric Acid, 81. 

 Taxus (Yew), 383. 

 Teleutospores, 304. 

 Tendrils, 241. 

 Tensions in tissues, 156. 

 Thigmotropism, 241 

 Torsion in twiners, 240. 

 Trabeculae, 337. 

 Tracheids, 105. 

 Tradescantia, 31. 

 Transfusion tissue, 376, 388. 

 Translation of food, 63, 79, 173. 

 Transmission of stimuli, 223, 251. 

 Transpiration, Ch. VI. (pp. 199, 



ef *eq.). 



Trommer's test, 54. 

 Tropaeolum, 138. 

 Trypsin, 47, 49. 



