608 



INDEX 



All numbers refer to pages, heavy type indicating illustrations. 



TkymeldEcea, Mezereum Family 



Thymus vulgaris, Thyme 



Tilia ulmifolia, Elm-leaved Lin- 

 den 



Tiliacece, Linden Familjf 



Tillandsia usneoides, Southern 

 Moss 



Timber, 257; pins, 260 



Tinning, L57 



Tint-ball Alga, 471, 558 



Tint-ball Familv: tint -ball alga, 

 471 



Tires, 284 



Tissue, 486, 560; systems, 539, 560 



Tissues, meristematic, 487; per- 

 manent, 487 



Toadstools, 111, 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, 2.59, 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 



Trachylohium Hornemannian iiin , 

 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 garden, 311 



Triticurn solivum, Wheat 



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

 woods. 256 



Trunk of fern, 640 



Trunks, 263 



Truth, supreme test of, 429 



Tsiiga canadensis, Hemlock 



Tuberculosis badcrium, 494 



Tuber, 43, 541, 542 



Tubiflora:, Phlox Order 



Tubs, 243 



Tubular floret, 380 



Tulip-tree, 261, 3.58, 406, 407 



Tulip Whitewood, 261, 263 



'J'urban Squash, 81 



Turkish Tobaci'O, 184 



Turnery, 242, 257, 2.59, 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 



Utmacew, Elm Family 



Ulinus americana, American Elm 



cojnpcslris, English Elm 

 Vlodenilron, Giant Club-mosses 

 Ulolhrix zonala. Wool-weed 

 Uhtrichaceo:, \\'oo]-weed Famih' 

 Umbel, 370 



Umbdlales, Parsley Order 

 UinbelUfcra;, Parsley Familj' 

 I'inbelliilora:, Parsley Order 

 Umbellule, 370 



Umbrella handles, 245, 274, 276 

 Umbrella liverwort, 515, 516, 517. 



518, 519, 520, 521 

 Uncoiled embryo, 355 

 Universality of life, 569 

 Upholstery stuffing, 235 

 Upland Cotton, 225, 226 

 Upright posture of land-plants 



530 

 Urlicacenc, Nettle Family 

 Urticalcs, Nettle Order 

 Useful bacteria, 494; plants, 302 

 Useless organs, 436 

 Usnea barbata. Beard-lichen 

 Usneacca; Beard-licluMi Family 



Valvate ;rstivation, 3>49, 354 

 Vaniha, 146, 149, 391, 424, 425 

 Vanilla planifolia, Vanilla 

 Vanillin, 146 



Variation, 448, 449; under domes- 

 tication, 4.56 

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



