missouriensis, 1154 

 nephrophylla, 1153 

 arizonica, 1153 

 nephrophylla, 1153 

 papilionacea, 1154 

 primulifolia, 1152 



villosa, 1152 

 pubescens 



eriocarpa, 1152 

 septemloba, 1152, 1153 

 sororia, 1153 

 Violaceae, 1151 

 Violet, 1151 

 family, 1151 

 lance-leaved-, 1152 

 meadow-, 1154 

 smooth yellow-, 1152 

 water-, 1277 

 woolly blue-, 1153 

 Viorna crispa, 923 

 Virginia bugle-weed, 1437 

 Virginia chain fern, 65 

 Virgin's-bower, 923 

 Vitaceae, 1108 

 Vitis, 1109, 1369 

 aestivalis, 1110 

 arizonica, 1111 

 arizonica, 1111 

 glabra, 1111 

 cinerea, 1109 

 canescens, 1110 

 cinerea, 1110 

 palmata, 1110 

 riparia, 1110 

 Treleasei, 1111 

 vulpina, 1110, 1111 



Wahoo, 1103 

 Wake-robin, 659 

 Walnut, 772 



Arizona-, 772 



family, 769 



little-, 773 



river-, 773 

 Wapato, 150 

 Washingtonia, 556 

 Water 



-ash, 1303 



-bentgrass, 228 



-birch, 779 



-bonnet, 563 



-celery, 161 



-chickweed, 1085 



-chinquapin, 912 



-clover, 53 



-cress, 971, 974 



-crowfoot 

 white-, 957 

 yellow-, 953 



-dropwort, 1251 



-elm, 788 

 -feather, 1202 

 -fern, 3, 57 

 -foxtail, 238 

 -grass, 326 

 -hemlock, 1237 

 -hemp, 862 

 Nuttall's-, 864 

 southern-, 864 

 -hickory, 775 

 -horehound, 1437, 1440 

 -hyacinth, 3, 4, 11, 598, 



868 

 -hyssop, 1458 

 disc-, 1461 

 -lentil, 571 

 -lettuce, 3, 4, 563 

 -lily, 4, 901 

 blue-, 902 

 family, 900 

 white-, 902 

 yellow-, 902 

 -locust, 1045 

 -meal, 3, 573 

 -milfoil, 1202 



family, 1201 

 -motie, 1607 

 -nymph, 126, 901 

 common-, 126 

 family, 123 

 holly leaved-, 126 

 slender, 126 

 -oak, 787 

 -parsnip, 1234 

 -pennywort, 1214 

 -pigmy-weed, 994 

 -pimpernel, 1277 

 -plantain, 3, 135 



family, 133 

 -poppy, 156 



-primrose, 4, 1175, 1187 

 -purslane, 1162 

 -shield, 3, 909 

 -smartweed, 820, 826 

 -speedwell, 1493 

 -spider orchid, 697 

 -star grass, 601 

 -starwort, 1085 

 family, 1085 

 -violet, 1277 

 -wally, 1607 

 -willow, 11, 1157 

 American-, 1531 

 lance-leaved-, 1531 

 Waterleaf, 1377 

 family, 1375 

 Waterpepper, 830 

 Waterweed, 3, 163 

 Waterwort, 1142 

 family, 1142 



Wax-myrtle, 5, 767, 769 



family, 767 

 Wax weed, blue-, 1167 

 Weak manna-grass, 185 

 Wedge-leaf frog-fruit, 1405 

 Wedgegrass, 218 

 Wen-dock, purple-, 909 

 Western 

 -dock, 802 

 -iris, 679 



-ladies' tresses, 724 

 -mayhaw, 1020 

 -pondweed, 100 

 -ragweed, 1645 

 -wheatgrass, 210 

 Wheatgrass, 208 

 bearded-, 208 

 western-, 210 

 Whisk fern family, 37 

 White 



-alder, 1267 



family, 1267 

 -ash, 1305 

 -avens, 1033 

 -camas, 650 

 -clover, 1052 

 -fringed orchid, 697 

 -grass, 274 

 -sweet clover, 1046 

 -thistle, 850 

 -top sedge, 464 

 -topped umbrella grass, 



467 

 -tridens, 208 

 -vervain, 1399 

 -water-crowfoot, 957 

 -water lily, 3, 902 

 Whitehead bog-button, 5, 



593 

 Whitlow-grass, 984 

 Widgeon-grass, 123 

 Widow's-tears, 595 

 Wild 



-balsam-apple, 1570 

 -bergamont, 1434 

 -celery, 1233 

 -chervil, 1223 

 -hollyhock, 1114 

 -hyacinth, 657 

 -mock-cucumber, 1571 

 -petunia, 1455 

 -potato, 1357 

 -rice, 277, 280 

 northern-, 277 

 southern-, 280 

 Texas-, 277 

 -rye, 210 



beardless-, 212 

 Canada-, 212 

 -tobacco, 1453 



1776 



