608 



INDEX 



All numlxM-s refer to pages, heavy tyi)e irxlicating illustrations. 



Thymeloecew, Mezereuiu Family 



Thymus vidgurin, Thyme 



Tilia idmifolia,' Elm-leaved Lin- 

 den 



Tiliacecp, Linden Family 



Tillandsia usneoidea, Southern 

 Moss 



Timber, 257; pins, 260 



Tinning, 157 



Tint-ball Alga, 471, 558 



Tint-ball Family: tint-ball alga, 

 471 



Tires, 284 



Tissue, 486, 560; systems, 539, 560 



Tissues, meristematic, 487; per- 

 manent, 487 



Toadstools, HI, 213 



Tobacco, 182, 184, 208, 382, 416, 

 417; Indian, 201, 384, 418, 419 



Toilet soaps, 296 



Tomato, 83, 84, 85, 121, 124, 382; 

 fruit, 114 



Tool-handles, 259, 260, 269 



Toothpicks, 245, 268 



Torches, 282 



Torus, 349, 350, 352; concave, 

 355; convex, 355; epigynous, 

 365; fleshy, 364; hollow, 380 



Toys, 245, 259, 263, 270, 284 



Trachylohiuin Hornemannianum , 

 Zanzibar Copal-tree 



Tragacanth, 163 



Tragacanth Shrub, 164, 165, 366, 

 410, 411 



Tragacanthin, 164 



Traveling gametes, 512 



Tree, 36; of life, 434 



Tree-cabbage, 274 



Tree-ferns, 299, 535, 538, 540 



Treenails, 259 



Trees, 306, 333 



Trestlework, 245 



Trianon botanic gartlen, 311 



Triticum sativum, Wheat 



True, gums, 287; mosses, 519, 530; 

 woods. 256 



Trunk of fern, 540 



Trunks, 263 



Truth, supreme test of, 429 



Ttiuqn canndensis. Hemlock 



Tuberculosis bacterium, 494 



Tuber, 43, 541, 542 



Tubiflone, Phlox Order 



Tubs, 243 



Tubular floret, 380 



Tulip-tree, 261, 358, 406, 407 



Tulip Whitewood, 261, 263 



Turban Squash, 81 



Turkish Tobacco, 184 



Turnery, 242, 257, 259, 263, 268, 



269, 277, 280 

 Turnip, 43, 54, 120, 124, 362; root, 



114 

 Turpentine, 287, 288, 296 

 Turps, 296 



Twice-compound, 339 

 Twine, 223, 230 

 Type, plants, 316; rubber, 284; 



wooden, 263 



Ulmacece, Elm Famil}' 



Ulmus americana, American Elm 



campedris, English Elm 

 Ulodendron, Giant Club-mosses 

 Ulothrix zonata. Wool-weed 

 Ulotrichacecr, Wool-weed Family 

 Umbel, 370 



Umbellales, Parsley Order 

 Umhellijeris, Parsley Family 

 Umbelliflorcr, Parsley Order 

 L'mbellule, 370 



Umbrella handles, 245, 274, 276 

 Umbrella liverwort, 515, 516, 517 



518, 519, 520, 521 

 Uncoiled embryo, 355 

 Universality of life, 569 

 Upholsterv stuffing, 235 

 Upland Cotton, 225, 226 

 Upright posture of land-plants. 



530 

 Urticacea, Nettle Familj- 

 Urticales, Nettle Order 

 Useful bacteria, 494; plants, 302 

 Useless organs, 436 

 Usnea barbata, Beard-lichen 

 Usneacece, Beard-lichen Family 



Valvate aestivation, 349, 354 

 Vanilla, 146, 149, 391, 424, 425 

 Vanilla planifolia, Vanilla 

 Vanilhn, 146 



Variation, 448, 449; under domes- 

 tication, 456 

 Varieties, 5, 428; cultivated, 6; do- 



