446 



INDEX. 



Tonestus, 345 

 Touterea, 234 

 Townsendia, 349 

 Toxicoscordion, y; 

 Trachyphytum, 236 

 Tradescantia, 75 

 Tragiaj 222 

 TragopogOHj 403 

 Trailing Savin, 10 

 TribuluSj 220 

 Trichachne, 21 

 Tridens, 38 



Trifoil, Birdsfoot, 202 

 Trifoil, Marsh, 268 

 Trifolie^, 19s 

 Trifolium, 200 

 Triglochin, 14 

 Trilliace^^e, 86 

 Trillium^ 86 

 Trillium Family, 86 

 Triodia, 37, 38 

 TriplasiSj Z7 

 Trisetum, 33, 34 

 TrolHus, 135 



T?-Oiirs»»o«, 406, 408, 409 

 Tufted Loosestrife, 263 

 Turkey Pea, 254 

 Turnips, 160 

 Turritis, 157 

 Twayblade, 89 

 Twin-flower, 323 

 Twisted-stalk, 84 

 Typha, 1 1 

 Typhace^, 1 1 



Ulmace^e, 100 

 Umeellales, 249 

 Umbrella-wort, 123 

 Unamia, 351 

 Unicorn-plant, 320 

 Unicorn-plant Family, 320 

 Urtica, 99 

 Ueticace.*, 99 

 Urticales, 99 

 Utricularia, 319 



Vaccaria, 134 

 Vacciniaceje, 260 

 Vaccinitim, 260 

 Vagnera, 84 

 Valerian, 326 

 Valeriana, 326 

 Valerianace^s, 326 

 Valerianai.es, 326 

 Valerian Family, 326 

 Vanilla Grass, 23 

 Vase-vine, 141 

 Velvet-leaf, 231 

 Venus' Looking-glass, 326 

 Venus' Slipper (Cytherea) 



Veratrum, 76 



Verbascum, 305 



Verbena, 294 



Verbenace.^, 294 



Verbesina, 374 



Vernonie^, 335 



Vernonia, 335 



Veronica, 312 



Vervain, 294 



Vervain Family, 294 



Vesicaria, 15s 



Vetch, 216 



Vetchling, 217 



Viburnum, 323 



Vicia, 216 



Vicics, 196 



Vilfa, 27 



Viola, 232 



Violace.!, 232 



Violet, 232 



Violet, Dog-tooth, 83 



Violet, Nodding, 234 



Violet Family, 232 



Violet Wood-sorrel, 220 



Viorna, 141 



Vii%inia Creeper, 228 



Virgin's Bower, 141 



Virgin's Bower, Purple, 141 



VlTACE^, 228 



Vitis, 228 



Wake-robin, 86 



Water Ash, 221 



Water-cress, 155 



Water-crowfoot, White, 142 



Water Hemlock, 252 



Water Hemp, 121 



Water Hoarhound, 299 



Water-leaf, 282 



Water-leaf Family, 281 



Water Lily, Yellow, 147 



Water-lily Family, 147 



Water Milfoil, 249 



Water Milfoil Family, 248 



Water Parsnip, 254 



Water Parsnip, Cut-leaved, 253 



Water-plantain, 14 



Water-plantain Family, 14 



Water Spring Beauty, 126 



Water Starwort, 225 



Water Starwort Family, 225 



Water-weed, 15 



Water-wort, 231 



Water-wort Family, 231 



Water Whorl-grass, 39 



Washingtonia, 251 



Wedelia, 124 



Wheat-grass, 52 



White Evening Primrose, 244 



White Fir, 9 



