INDEX 



151 



Page 



Titi family 121 



Trapa 66 



natans 66 



Triadenum 123 



Tripsacum 84 



dactyloides 84 



Tupelo-gum 130 



Typha 68 



angustifolia 68 



latifolia 68 



TYPHACEAE 68 



ULMACEAE 113 



UMBELLIFERAE 130 



Umbrella-grass 94 



URTICACEAE 113 



Utricularia 137 



biflora 138 



cprnuta 137 



fibrosa 138 



floridana 138 



foliosa 138 



gibba 138 



inflata 137 



macrorhiza 138 



pumila 138 



purpurea 137 



radiata 137 



resupinata 137 



virgatula 137 



vulgaris 138 



VaUisneria 75 



americana 75 



VERBENACEAE 134 



Verbena family 134 



Vesiculina 137 



Virginia willow family 119 



VITACEAE 122 



Walnut family 112 



Water-chestnut 66 



Water-chinquapin 117 



Water-cress 119 



Waterleaf family 134 



Water-lettuce 103 



Water-lily 117 



blue 117 



white 117 



yellow 117 



Page 



Water-lily family 116 



Watermeal 103 



Water milfoil family 129 



Water-pepper 115 



Water plantain family 72 



Water-shield 117 



Water starwort family 121 



Waterweed 75 



White alder family 132 



Widgeon-grass 71 



Wild rice 81 



Willow 112, 113 



black 113 



sandbar 112 



Virginia 119 



water 125 



Willow family 112 



Wolffia 103 



Columbiana 103 



punctata 103 



Wolffiella 103 



floridana 103 



Wool-grass 93 



XYRIDACEAE 104 



Xyris 104 



ambigua 105 



baldwiniana 105 



caroliniana 105 



communis 105 



difformis 106 



elata 105 



elliottii 106 



fimbriata 106 



iridifolia 105 



jupacai 105 



serotina 106 



smalliana 106 



stricta 105 



torta 105 



Yaupon 121 



Yellow-eyed grass 105 



Yellow-eyed grass family 104 



Zannichellia 71 



palustris 71 



Zizania 81 



aquatica 81 



Zizaniopsis 82 



miliacea 82 



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