356 



INDEX 



Thorn, Long-spined, 177 

 Porter's, 176 

 Pruinose, 176 

 Red-fruited, 177 

 Scarlet, 176 

 Thin-leaved, 176 

 Washington, 176 

 Thorn-apple, Purple, 276 

 Thorough-wax, 230 

 Thorough wort, Common, 



313 

 Hairy, 313 

 Hyssop-leaved, 313 

 Round-leaved, 313 

 Tall, 313 

 Torrey's, 313 

 Vervain, 313 

 White, 313 

 Three-seeded Mercury, 

 Hornbeam, 198 

 Slender, 198 

 Virginia, 198 

 Thyme, Creeping, 271 



Wild, 271 

 Tickseed, Garden, 333 

 Leafy-bracted, 335 

 Running, 334 

 Small Rose, 33^ 

 Tall, 334 

 Whorled, 333 

 Tickseed-Sunflower, 

 Long-bracled, 



335 



Tall, 335 



Tick-trefoil, Canadian, 



188 



Cream-flowered, 



187 

 Dillen's, 188 

 Few-flowered, 187 

 Hairy Small- 

 leaved, 188 

 Hoary, 187 

 Long-bracted, 



187 

 Naked-flowered, 



187 

 Panicled, 187 

 Pointed-leaved, 



187 

 Prostrate, 187 

 Rigid, 188 

 Sessile-leaved, 



187 

 Showy, 188 

 Smooth, 187 

 Smooth Small- 

 leaved, 188 

 Trailing, 187 

 Velvet-leaved, 

 187 

 Toad-flax, Bastard, 112 

 Pale, 279 

 Pale-blue, 279 

 Round-leaved, 



279 

 Sharp-pointed, 

 279 



Tobacco, Indian, 301 

 Long-flowered, 277 

 Wild, 277, 301 



Tomato, 276 



Toothache-tree, 195 



Tooth wort. Cut-leaved, 



154 

 Large, 154 

 Slender, 154 

 Two-leaved, 154 

 Touch-me-not, Pale, 206 



Spotted, 206 

 Tree of Heaven, 196 

 Trefoil, Bird's-foot, 185 

 Trillium Family, 86 

 Trumpet-flower, 287 



Tendrilled, 287 

 Trumpet-creeper, 287 

 Trumpet-creeper Family, 



287 

 Trumpet-weed, ;^iTi 

 Tulip-tree, 133 

 Tulip, Wild, 83 

 Tumbleweed, 122 

 Tumble-weed, 19 

 Tupelo, 235 

 Turnip, 152 

 Turtle-head, 280 

 Tway-blade, Heart- 

 leaved, 95 

 Large, 97 

 Loesel's, 97 

 Small's, 95 

 Southern, 95 

 Twig-rush, 50 

 Twin-berry, 290 

 Twin-leaf, 143 

 Twisted-stalk, Clasping- 

 leaved, 85 

 Sessile-leaved, 

 85 



Umbrella-tree, 133 

 Umbrella-wort, Heart- 

 leaved, 123 

 Pale, 123 

 L%icorn-plant, 287 

 Unicorn-plant Family, 

 287 



Valerian Family, 297 



Garden, 297 



Greek, 257 



Large-flowered, 297 

 Velvet-grass, 29 

 Velvet Leaf, 210 

 Venus' Comb, 229 

 Venus' Looking-glass, 



300 

 Vernal-grass, Sweet, 24 

 Vervain, Blue, 262 



European, 262 



Hoary, 262 



Large-bracted, 262 



Mullen-leaved, 262 



Narrow-leaved, 262 



White, 262 

 Vervain Family, 261 



Vetch, American, 191 



Blue, 191 



Carolina, 191 



Carolina Milk, 185 



Common, 191 



Cow, 191 



Hairy, 191 



Sensitive Joint, 186 



Slender, 191 



Smaller, Common, 

 191 

 Vetchling, Cream- 

 colored, 192 

 Vincetoxicum, Large- 

 flowered, 252 

 Violet, American Dog, 

 218 



Arrow-leaved, 217 



Bird's-foot, 216 



Canada, 218 



Coast, 216 



Dame's, 150 



Early Blue, 216 



English, 217 



Family, 215 



Green, 219 



Hairy Yellow, 218 



Halberd-leaved 

 Yellow, 218 



Kidney-leaved, 218 



Lance-leaved, 218 



Long-spurred, 218 



Marsh Blue, 217 



Meadow, 217 



Ovate-leaved, 217 



Pale, 218' 



Primrose-leaved, 218 



Round-leaved, 217 



Selkirk's, 217 



Smoothish Yellow, 

 218 



Southern Wood, 217 



Striped, 218 



Sweet, 217 



Sweet White, 217 



Thin-leaved Wood, 

 216 



Triangle-leaved, 217 



Upland, 217 



Woodland White, 

 218 

 Viper's Bugloss, 261 

 Virginia Creeper, 208 

 Virginia Stonecrop, 159 

 Virginia Stonecrop 



Family, 159 

 Virginia Willow, 162 

 Virgin's Bower, Purple, 



139 . 

 Virginia, 138 



Wahoo, 204 



Wake-robin, Early, 87 

 Ill-scented, 87 

 Large-flowered, 



87 

 Nodding, 87 

 Painted, 87 



