GLOSSABIAL INDEX. 



497 



tion of, on pollen-grains, 429; in the 

 cell-sap, 52; use of, as a reagent, 15, 

 199. 



Sugar group of non-nitrogenous prod- 

 ucts, 358. 



Sulphur, appropriation of, by the plant, 

 255, 281, 336; in the ash of plants, 

 217. 



Sulphuric acid (H2SO4), effect of, upon 

 cellulose, 15, 31 ; effect of, upon cuti- 

 nized membranes, 39; use of, as a sol- 

 vent for callus, 93. 



Sulphurous acid (SO2), effects of, upon 

 leaves, 474. 



Superior ovaries, arrangement of the 

 tibro-vascular bundles in, 173. 



Suspensor, 436. 



Synergidae (o-ui/epydt, working together), 

 435. 



Syntagma ((riii-TaYiua, that which is put 

 together in order), 213, n. 



Synthesis of albuminous matters in the 

 plant, 335. 



Systems, 102. 



Tabasiieer, 39, n. 



Tagma (riyiia, a company), 213, re. 



Taniiate of gelatin used in the formation 

 of Traube's cell, 226. 



Tannin (CuHicOo), diffusion of, 222; in 

 pulvinua of Mimosa, 361, 420; occur- 

 rence of, in plants, 361; tests foi", 12, 

 14. 



Tapetum (tnpete, a carpet), 171, n. 



Tartaric acid (CiHoOc), 360. 



Teasel. See Dipsacus. 



Tegmen (teffinen, a covering), 178. 



Telegraph plant, 413. 



Temperature, effect of, upon absorption 

 by soils, 240; effects of too high, upon 

 ■ plants, 470 ; elevation of, during intra- 

 molecular respiration, 372; influence 

 of, upon absorption by roots, 245 ; influ- 

 ence of, upon assimilation, 306, 316; 

 influence of, upon respiration, 369; in- 

 fluence of, upon transpiration, 277; of 

 air inside a spathe, 370; of pulvinus 

 of Mimosa, 421 ; producing rigidity 

 in Sensitive plant, 423; relations of 

 growth to, 385 ; relations of protoplasm 

 to, 201 ; relations of soils to, 245 ; rela- 

 tions of, to germination, 464. 



Tendrils, circumnutation of, 409, 417. 



Tensions of the cell-wall and tissues, 

 390. 



Terpene (CioHio), 362. 



3Z 



Tertiary formations in the root, 115. 



Testa (testa, a shell), 178. 



Tetrad (Terpis, four), 171. 



TUallium, occurrence of, in plants, 256, 



Thallophytes, 164, 440. 



Tharandt normal-culture solution, 250. 



Thermotropic curvatures, 394. 



Thermotropism {eep/idy, heat; rpdiroi, a 

 turn), 394. 



Thiersch's borax-carmin, 17. 



Thiersch's oxalic-acid carmin, 17. 



Times of opening and closing of flowers, 

 412. 



Tin, occurrence of, in plants, 256. 



Tissues, 102; classilication of, 187; con- 

 ducting power of ligneous, 261; cribri- 

 form, 91; depth to which light pene- 

 trates, 309 ; hardening of, 9, 11 ; rela 

 tions of water to, 257; sensitive, 415; 

 tension of, 390. 



Titanium occurrence of, in plants, 256. 



Trabecular ducts (trabecula, a little 

 beam), 86. 



Trachea; (rpaxeia, rough), 82, 84. See 

 also Vessels. 



Ti-acheal cells, 81. 



Tracheal portion of a flbro-vascular 

 bundle, 104. 



Tracheids, 82; in roots of orchids, 109; 

 in stems, 121; size of, 143; walls of, 

 84. 



Transfer of water through the plant, 257 ; 

 compared with that through porous 

 inorganic substances, 262, n. ; effect of 

 exposing a cut surface to the air upon, 

 263; effect of motion upon, 263; path 

 of, 269 ; rate of, 259, 26 1 . 



Transformed branches, 153. 



Transformed cells, 56. 



Transmutation, 354, 355, 



Transpiration, 266; amount of water 

 given off in, 271, 275, 281; apparatus 

 for registering, 273; checks upon, 280; 

 compared with evaporation proper, 

 275; effect of various salts upon, 

 279; effect of heat upon, 277; effect 

 of light upon, 277; effect of mechani- 

 cal shock upon, 278 ; effect of moisture 

 in the air upon, 275; effect of nature 

 of the soil upon, 276; effects of, upon 

 the air, 281 ; effects of, upon the plant, 

 281; effects of, upon tlie soil, 283; 

 experiments upon, 273; methods of 

 measuring, 272 ; relation of age of 

 leaves to, 279; relation of, to ab'^orp- 

 tion, 279; relative amounts of, from 

 opposite sides of a leaf, 274. 



