128 
ANNALS OF THE 
Thymeleace^. 
Dirca paltistris, L. Woods and thickets ; common. 
El^agnace^. 
Shepherdia Canadensis^ Nutt. Rocky banks of the St. Lawrence, west of Brockville. 
Santalacejs. 
Comandra umbellata, Nutt. Pine Grove south of Junction, and abundant in 
thickets around Grand Trunk Gravel Pit. 
Ce H ATOPH YLLACE^. 
Ceratophyllum demersum^ L. St. Lawrence ; common. 
Callitrichace^. 
Callitnche verna^ L. Conway's Creek ; common. 
Gallitriche autuinnalis, L. ? Railroad Bay. 
EUPHOEBIACE^. 
Euphorhia maculata^ L. Hard soil ; common. 
Euphorhia Helioscopia^ L. Road-sides ; common. 
Euphorhia obtusata, Pursh. Road-sides ; common. 
Acalypha Virginica^ L. Road-sides ; rare. 
Urticace-s:. 
Zflmus fulva^ Michx. Woods and thickets ; common. 
Ulmus Americana^ L. Very common. 
Ulmus racemosa, L. Woods ; somewhat rare. 
Celtis occidentalism L. Occurs northward upon the tributaries of the Ottawa, but 
not seen here. 
Urtica gracilis^ Ait. Common. 
Laporiea Canadensis^ Gaudich. Common. 
Pilea pumila. Common. 
Boehmeria cylindrica^ Willd. Common. 
Cannabis sativa, L. Common. 
JUGLANDACE^. 
Juglans cinerea, L. Everywhere common. 
Carya alba, Nutt. Common, but not inland. 
Carya amara, Nutt. Common over the country. 
CUPDLIFER^. 
Quercus macrocarpa, Michx. Common. 
Quercus alba, L. Less common than the last. 
Quercus rubra, L. Common. 
Fagus ferruginea. Ait. Very common. 
Corylus rostrata, Ait. Common. 
Carpinus Americana, Michx. Common. 
Ostrya Virginica, Willd. Common. 
