334 



INDEX. 



Tracheides, 137, 160, 237, 



389. 

 tradescantia, 105, 126. 



— albiflora, 114. 



— rubella, 317. 

 Tragacanth, 180. 

 Iragopogon, 362. 

 Trajectories,. 439. 

 Trametes pini, 388, 389. 



— radiciferda, 388, 389. 

 Transformations of aspara- 



gin, 346. 



— of carbo-hydrates, 323. 



— of fats, 311, 328. 



— of proteids, 326. 



— of starch, 311, 323, 328, 



343- 

 Transitory starch, 325, 357, 



358. 

 Translocation by diosmosis, 



363- 



— of fats, 347, 358. 



— of plastic materials, 353, 

 355, 357- 



— of reserve materials, 320, 

 329, 345- 



— of starch, 312, 313, 316, 



325, 329, 358, 363. 

 Transmission of parental 

 ^^ characters, 779. 

 iTranspiration, 226, 244, 246, 

 I 276,277,511,512, 



i— conditions affecting, 228, 

 11^246, 251. 

 — of land-plants, 225. 

 ■ light as affecting, 251./ 



Tree-Fems, ascent of water 

 in, 230. 



— -killing fungi, 344, 369, 

 381, 387,389,407. 



Trees, 510. 



— branches of, 580. 



— correlations in, 505. 

 Tree-trunks, swaying of, 



579- 



buttresses on, 579, 580. 



Trichogyne, 726, 727. 

 Trichomanes, 442. 

 TrifoHum, 593,598, 630. 



— incarnatum, 594, 627. 



— pratense, 627, 637, 638. 

 Trimorphic flowers, 790. 

 Triticum, 780. 



— 688. 



— repens, 59. 



— -vulgare, 338. 

 781. 



Trops^olum, 56, 263, 279, 300, 



533, 548, 659, 713, 714- ' 



— majus, 313, 523, 612, 

 711. 



315. 



— minus, 57, 660. 

 Truffles, 152. 



Tubers, 21, 24,59, 169,298, 

 300, 312, 314, 326, 330, 

 332, 343, 350, 357, 366, 

 404, 462, 478, 504, 517, 



534, 722,798. 



— conversion into leafy 

 shoots, 504. 



— of moss, 364. 



Tulip, 43, 59, 61, 335, 357, 

 360, 534, 641, 642. 



— moisture as affecting, 2Si.-^ Tulipa praicox, 59, 358, 



• purpose of, 253 



— regulation of, 247. 



— salts in soil as affecting, 

 252. 



— filjaVmg- as affecting, 252. 



— temperature as affecting, 

 252. 



'"^'tVork of, 229. 

 Transverse folds on roots, 

 576. 



— growth, 483. 



— sections of organs, 436, 

 439, 447, 481, 482, 485, 

 486, 488, 577. 



— section of wood, 444. 



— septa, 432,453. 



— tensions in tissues, 572, 

 574, 580. 



Trapa, 352. 



— nutans, 351. 



702. 



Traubes' cells, 215. 

 Travelling of plants, 59. 

 Tree-Fems, 128, 144, 465, 



4/3, 741,800. 



— sil^estris, 178. 

 Tulip tree, 51, 506. 

 Turf, 294, 382. 

 Turgescence, 212, 233, 250, 



255, 264, 275, 360, 362, 



552,554- 



— due to acids, 328, 403, 

 566. 



— and growth, 565-569, 



572, 573, 576, 581, 641. 



— and irritability, 588, 599, 

 631, 633, 634, 635, 638, 

 639, 646-649, 653, 665, 

 689, 697. 



Turnip, 24, 169, 343. 

 Turpentine, 389. 

 Twin crystals, 177. 

 Twining, mechanics of, 670- 

 672, 674-676. 



— directions of, 668, 669. 



— without supports, 672, 

 673. 



— plants, 56, 513, 657, 660, 



668, 676. 

 geotropismof,67i,675. 



Twining plants, relations to 

 supports, 668, 671. 



revolving nutations of, 



669, 670. 



and tendrils compared, 



668, 674, 675. 



— shoot axes, 548, 668, 66g. 



growth of, 669, 674. 



irritability of, 674, 



675. 

 Tyloses, 581. 

 Types of growth, 451. 



abnormal, 425. 



lypha, 701. 



— latifolia, 312. 

 Typical cell-division, io6. ' 



— forms, 6. 

 of tissue, 115. 



— growth in thickness, 157. 

 412. 



— growing-point, 460. 



— roots, II. 



— shoots, 36. 



— tendrils, 659, 660. 



— reproductive organs, 723, 



734- 



— flower, 756, 757. 

 Tyrosin, 345, 349. 



U. 



Vdora, 297. 

 Ulmese, 180. 

 Vlmus, 279. 

 Vtothrix, 611, 612. 



— speciosa, 607. 



— zonata, 611. 



— 604. 



Ultra-violet rays, 696, 697. 



Ulva, 611. 



Umbelliferae, 52, 181, 334, 



418, 470,572,703, 792- 

 Unbranched plants, 472. 

 Unfolding of leaf-buds, 397, 



547- 

 Unsegmented laticiferous 



vessels, 173. 

 Unstable crystals, 591, 592, 



593- 



— equilibrium, 591, 592, 



597. 

 Upper-leaf, 471, 506. 

 Urea, 384. 

 Urticaceae, 124, 171, 178, 



496, 780, 790. 

 XJrtica, 436. 



— dioica, 169. 



Uses of irritability, 655, 



656. 

 Usnea barbata, 34, 153, 383. 

 Utricular- vessels, 179. 

 Utricularia, 4.^, 335, 461, 492. 



— •vulgaris, 687. 

 Utriculariae, 378. 



