INDEX 



543 



Tap roots, 32. 



Taraxacum densleonis, 449. 



Taraxacum taraxacum, 449. 



Taxus, fruit of, 214. 



Tea family, 445. 



Teasel, 448. 



Teleuto stage, 314, 317, 320. 



Teleutosorus, 314. 



Teleutospore, 311, 320. 



Tendril climbers, 46. 



Tendrils, 47, 94. 



Tendrils, irritability of, 95. 



Tetramerous, 407. 



Tetraphis pellucida, 349, 351. 



Tetraspore, 354. 



Tetraspore plant, 354. 



Tetras pores, 264, 332. 



Thallophyta, 225, 228. 



Thallophytes, 225, 231, 335. 



Thallose, 359. 



Thallose liverworts, 336. 



Thallus, 231, 245, 272, 279, 334, 335, 



343, 345- 

 Thea, 445- 

 Theaceae, 445. 

 Theobroma cacao, 444. 

 Thistle family, 449. 

 Thyrsus, 149, 153. 

 Tick trefoil, fruit of, 221, 222. 

 Tilia americana, 443. 

 Tiliaceae, 443. 

 Tillandsia, 301. 

 Tillandsia usneoides, 431. 

 Tilletia tritici, 307, 308. 

 Tissue, 2, 18, 19, 37, 59, 60. 

 Toadstool, 322. 

 Tobacco, 447, 448. 

 Tomato, 446. 

 Tomato, fruit of, 212. 

 Tooth fungi, 328. 

 Touch-me-not, flower and fruit of, 



223. 



Toxin, 269. 

 Tracheides, 388, 389. 

 Tradescantia, 33, 34. 

 Tragopogon porrifolius, 449. 

 Trametes pini, 140. 

 Transpiration, 97-103, 108. 

 Transpiration, amount of, 103. 

 Transpiration, reduction of in plants, 



479- 



Trichodesmium erythracum, 253. 

 Trichogyne, 245, 261, 262. 

 Trifolium, 440. 



Trillium, 48, 408. 



Trirnerous, 407. 



Triticum ovatum, 423, 



Tropophytes, 459. 



Tropical vegetation, 456. 



Tuberculosis, 268. 



Tubers, 50. 



Tubular flowers, 167. 



Tulip tree, 77. 



Tropaeolum, 46. 



Trumpet creeper, 34. 



Tumble weeds, 219, 463. 



Tundra, polar, 480. 



Turgescence, 40. 



Turgid, 40, 41. 



Turgor, 235. 



Twining stems, irritability of, 95. 



Typhoid fever, 268, 270. 



Ulmaceae, 435. 



Ulmus americana, 435. 



Ulothrix zonata, 242. 



Umbel, 149, 150, 153. 



Uncinula, 290. 



Uredinales, 308-320. 



Uredo, 316. 



Uredo stage, 311, 315, 319, 320. 



Uredospores, 311-313, 315, 319. 



Uromyces caryophyllinus, 137. 



Urticaceae, 434. 



Usnea barbata, 301. 



Ustilago avenae, 306. 



Ustilago hordei, 308. 



Ustilago nuda, 306, 307. 



Ustilago tritici, 306. 



Ustilago zeae, 305, 306. 



Vacciniaceae, 445. 



Vaccinium macrocarpon, 446. 



Vaccinium oxycoccus, 446. 



Vaccinium vitisidaca, 446. 



Vacuoles, 4, 234. 



Valerianales, 448. 



Variation, 497. 



Varieties, production of new, 497; 



object in, 502. 

 Vascular, 58. 



Vaucheria, 232, 246-248, 251, 331. 

 Vaucheria sessilis, 247. 

 Vegetation structures, 455-460. 

 Vegetation types, 455-460. 

 Velamen, 34. 

 Venus fly-trap, 95, 96. 

 Veratrum viride, 83, 84. 



