764 



SUBJECT INDKX 



Tissue-system, 56, 71. 

 Tissue-tension, .3(30. 

 Tonoplast, 25. 

 Torus, 310. 



Trachea. Bee Wood-vessel. 

 Tracheide, 306 sqq., 321, 322, 366, 367. 

 (i-V,t sqq. 



fibrous. 658. 664, 667. 088. 



rudimentary, ."346, 350, 351. 



scalariform, 308. 

 Transfusion-tissue, 366. 

 Translocation, 291 aqq., 302 sqq., 323, 327 

 sqq., :;!:!. .1ST. 656, <i<i2. tiliT. 074. 



intercellular, 44. 



intracellular, 22. 

 Transpiration, cutieular, 105, 100. 



stornatic. 457, 458. 

 Transpiration-current, 302, 304, 074, 084. 

 Trichome, see Hail-. 

 Trichome-hvdathode, 491 sqq., 501, 504. 



510, 511. 

 Triolein. 418. 

 Triticin, 415. 

 Trophoplasm, 20. 

 Turgor, 41, 151. 

 Tylosis, 32.->, 326. 

 Tyrosin, 415. 



Unfolding of buds, 674. 

 Unicellular plant, 29, 52, 53. 

 Uredospore, 35. 



Vacuolar membrane, 24. 41, 574. 

 Vacuole, 21, 25, 41, 42. 417. 



contractile, 43. 

 Vanillin, 47. 



Variation of design, see Alternative design. 

 Vascular anastomosis. 182, 100, 321, 346, 



384, 387, 388. 301. 088. 

 Vascular bundle, 308. 340 sqq., 301, 040. 

 (141. 



bicollateral, 354, 304. 



cauline, 375, 381, 393. 



closed, 97. 



collateral, 349, 354 sqq., 360, 362, 386, 

 687. 



common, 375. 



concentric. 340, 350, 358. 



cortical, 381 sqq. 



hadrocentric, 340, 359. 



Ieptocentric, 340. 365, 088. 



medullary, 381, 382. 



open, 97. 



_ I 



Vascular bundle, radial, 349, 351, 352. 353, 

 359. 



secondary, 650, 687. 



tertiary, 697. 



transitory, 323. 

 Vascular bundles, arrangement of, 37 ^ sqq 

 Vascular system, centralisation of, 377. 



Dicotyledonous type, 378 sqq. 



in climbers, 324. 



in petals, 3s7. 389. 



in relation to environment, 388. 



Palm-type, 383. 384. 



reduction of. 323. 



tubular, 377. 378. 

 Vascular tissue, regeneration of, 389. 

 Velamen, 216, 231 sqq., 481, 482. 

 Vibration-experiment, 011. 



Water, cohesive power of, 320, 557. 



Water-calyx., 501. 



Water-pore, 237, 323 ; see also Watcr- 



stoma. 

 Water-secreting organ, see Hvdathode. 

 Water-stoma, 494, 405, 496. ' 

 Water-storage, 307 sqq. 



epidermal. 114. 115, 116, 124, 398. 

 Water-tissue, 307 sqq. 



internal, 30S. 



peripheral, 308. 

 Water-vapour, condensation of, 233, 234. 

 Water-vesicle, epidermal, 116. 

 Wax, 107, 402. 463. 

 Wet-leaf experiment, 629. 

 Wing, 544, 546 sqq. 

 Wood, oblique grain of, 082. 

 Wood-fibre, 155, 347, 34S, 653. 659 sqq. 

 Wood-vessel, 305 sqq., 321, 322, 303. 394. 

 059 sqq. 



annular, 308. 



pitted, 308. 



reticulate. 208. 



spiral, 308. 309. 

 Woody cylinder, see Xylem, secondary. 

 Wound-cork, 140, 140." 



Xanthophvll, 36, 207, 208. 

 Xylan. 47." 

 Xylem, 347, 348. 



secondary, 654, 659 sqq., 697. 

 Xylem-element, transitional, 664, 665. 

 Xylem-parenchyma, 304. 318, 321, 059 sqq. 

 Xylem-iay. 654, 655, 059, 000 sqq. 



Zoospore, 43. 



