«34 



INDEX. 



Tracheides, 137, 160, 237, 



389. 

 Tradescantia, 105, 126. 



— albißora, 114. 



— rubella, iif. 

 Tragacanth, 180. 

 Tragopogon, 362. 

 Trajectories, 439. 

 Trametes pitii, 388, 389. 



— radiciperda, 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. 

 Transpiration, 226, 244, 246, 



276, 277, 511, 512. 



— 252. 



— amount of, 228. 



— conditions affecting, 228, 

 246, 251. 



• — of land-plants, 225. 



— light as affecting, 251. 



— moisture as affecting, 251. 



— purpose of, 253. 



— regulation of, 247. 



— salts in soil as affecting, 

 252. 



• — shaking as affecting, 252. 



— temperature as affecting, 

 252. 



- — work 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. 



— not ans, 351. 



702. 



Traubes' cells, 215. 

 Travelling of plants, 59. 

 Tree-Ferns, 128, 144, 465, 



472, 741, 800. 



Tree-Ferns, 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. 

 Trkhomanes, 442. 

 Trifolium, 593, 598, 630. 



— incarnatum, 594, 627. 



— pratense, 627, 637, 638. 

 Trimorphic flowers, 790. 

 Triticmn, 780. 



— 688. 



— repens, 59. 



— -vulgare, 33S. 

 781. 



Tropxolum, 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, 6r, 335, 357, 



360, 534, 641, 642. 

 Tulipa precox, 59, 358. 



— silvestris, 178. 

 Tulip tree, 51, 506. 

 Turf, 294, 382. 

 Turgescence, 213, 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 tendrilscompared, 



668, 674, 675. 



— shoot axes, 548, 668, 669. 



growth of, 669, 674. 



irritability of, 674, 



675. 

 Tyloses, 581. 

 Types of growth, 451. 



abnormal, 425. 



Typha, 701. 



— latifolia, 312. 

 Typical cell-division, 106. , 



— forms, 6. 

 of tissue, 115. 



— growth in thickness, 157. 

 412. 



— growing-point, 460. 



— roots, I r . 



— shoots, 36. 



— tendrils, 659, 660. 



— reproductive organs, 723, 

 734. 



— flower, 756, 757. 

 Tyrosin, 345, 349. 



U. 



Udora, 297. 

 Ulmeae, 180. 

 Ulmus, 279. 

 Uloihrix, 611, 612. 



— speciosa, 607. 



— zonata, 6 1 r . 



— 604. 



Ultra-violet rays, 696, 697. 



Ulva, 6ri. 



Umbelliferae, 52, i8r, 334, 



418, 470, 572, 703, 792. 

 Unbranched plants, 472. 

 Unfolding of leaf-buds, 397, 



547- 

 Unsegmented laticiferous 



vessels, 173. 

 Unstable crystals, 591, 593, 



593- 



— equilibrium, 591, 592, 



597- 

 Upper-leaf, 471, 506. 

 Urea, 384. 

 Urticaceae, 124, 171, 17 8, 



496, 780, 790. 

 Urtica, 436. 



— dioica, 169. 



Uses of irritability, 655, 



656. 

 Usnea harhatn, 34, 153, 393. 

 Utricular-vessels, 179. 

 'Utricularia,\i, 335, 461, 492. 



— -vulgaris, 687. 

 Utricularise, 378. 



