Sunflower, Common . 194 
Sunflower, Ten-petalled . 194 
Sweetbriar . 165 
Symplocarpus foetidus . 22 
Tanacetum vulgare. 199 
Tansy . 199 
Taraxacum officinalis. 206 
Tecoma radicans. 168 
Tephrosia virginiana . 93 
Thalictrum polygamum . 69 
Thistle, Common. 203 
“ Canada . 202 
“ Sow . 207 
“ Star . 203 
Thorn Apple. 158 
Thoroughwort . 177 
Tiarella cordifolia . 83 
Toadflax . 160 
Toothwort . 78 
Tradescantia virginiana . 23 
Trifolium . 94 
Trientalis americana . 137 
Trilliums . 38 
Trumpet Creeper . 168 
Turtle-head . 161 
Twayblade . 56 
Twin Flower . 171 
Twisted-stalk . 34 
Typha angustifolia . 17 
Typha latifolia . 17 
Uvularia perfoliata. 25 
Verbascum . 159 
Verbena . 152 
Vernonia noveboracensis . 176 
Veronica. 163 
Vervain . 152 
Vetch, Cow . 97 
Vicia Cracca . 97 
Viola blanda . 115 
canadensis . 114 
" cucullata .. ..... 114 
