421 



Thuya occidentalis, Linn. White cedar. Arbor vitae. 



Tiarella cordifoha, Linn. Mitre-wort. 



Tilia glabra, Yentenant. Basswood. Limetree. 



Tofieldia glutinosa, Mx. 



Tradescantia virginica, Linn. Spider-wort. 



Trichodium laxiflorum, Mx. 



scabrum, Muhl. 

 Tricuspis sesleroides, Torrey. Red-top. 

 Trientahs Americana, Pursh. Chick wintergreen. 

 TrifoHum pratense, Linn. Red clover. 



repens, Linn. White clover. 

 Triglochin maritima, Linn. Arrow-grass. 



polustre, Linn. Marsh arrow grass. 

 Trillium erectum, Linn. False wake-robin. 



erythrocarpum, Mx. Smiling wake-robin, 

 grandiflorum, Salisbury. 

 Triosteum perfoliatum, Linn. Fever root. Wild coffee. 

 Triphora pendula, Nutt. Three bird orchis. 

 Trisetum purpurascens, Torrey. 

 Typha latifolia, Linn. Cat tail. Reed mace. 



U. 



Ulmus fulva, Mx. Slippery elm. Red elm. 



Urtica canadensis, Linn. Canada Nettle. Albany hemp. 



capitata, Linn. 



dioica, Linn. Common nettle. 



pumila, Linn. Stingless nettle. 

 Utricularia fornicata ? LeConte. 



gibba, Gronovius. 



macrorhiza, LeConte. Bladder-wort. 



purpurea, Walter. 

 IJMilaria grandiflora, Smith. 



sessilifolia, Linn. 



Vaccinium pennsylvanicum, LaMarck. Whortleberry, 

 resinosum, Alton. Black whortleberry. 



