34 



Inula Helenium, L .* Elecampane 



Goat Island. 

 Polymnia Canadensis, L Leaf-cup 



Along the descent to the Ferry on the Canadian side of the River, 

 and at the Whirlpool and Foster's Flat, Ontario. 

 Silphium trifoliatum, L. 



'Attributed to the Falls, by Torrey, on the authority of Dr. Eddy. 

 Not observed by us. 



Ambrosia trifida, L Rag Weed 



Margin ot the River above the Falls. 



Anibrosia artemisisefolia, L Rag Weed 



Goat Island and with the foregoing species. 



Xanthium Canadense, Mill Cockle-bur 



Above the Falls on the American side. 



var. echinatum, Gray. 



Chippewa, Ontario. Macoun, on the authority of Dr. Maclagan. 



Heliopsis Isevis, Pers False Sun-flower 



Near Clifton, Ontario. 



Rudbeckia hirta, L Yellow Daisy- 

 Near Lewiston. 



Rudbeckia laciniata, L Cone Flower 



Wet jnaces near Clifton, Ontario. 



Helianthus annuus, L Common Sun-flower 



Escaped near Lewiston. 



Helianthus divaricatus, L Sun-flower 



Goat Island. 



Helianthus strumosus, L Sun-flower 



Goat Island. Near DeVaux XUollege. 



Helianthus decapetalus, L Sun-flower 



Damp places near Clifton, Ontario. 



Bidens frondosa, L Cockle. Beggar's ticks 



Waste places on the main land. 



Bidens connata, Muhl Beggar's ticks 



Goat Island. 



Bidens cernua, L. 



Wet places near Clifton, Ontario.* 



Bidens chrysanthemoides, Michx. 



With the last and on the American side of the River above the 

 Falls. 



