NATURAL HISTORY, TORONTO REGION 
Polygala senega, L. 
= verticillata, L. 
EvupHorpiacear (Spurge Family). 
Euphorbia helioscopia, L. (Sun Spurge). 
hirsuta, Wiegand. 
lathyrus, L. 
maculata, L. 
platyphylla, L 
polygonifolia, L. 
ce 
ce 
(13 
(79 
CatirtricHacear (Water Starwort Family). 
Callitriche palustris, L. 
ANACARDIACEAE (Cashew Family). 
Rhus cotinus, L. (Smoke Tree). Planted. 
“ toxicodendron, L. (Poison Ivy). 
typhina, L. (Staghorn Sumach). 
ce 
CrLasTRACEAE (Staff Tree Family). 
Evonymus atropurpureus, Jacq. (Burning Bush). 
In the Humber Valley. 
obovatus, Nutt. Plentiful up the Don. 
Celastrus scandens, L. (Bitter-sweet). Common. 
SraPpHYLEACEAE (Bladder Nut Family). 
Staphylea trifolia, L. (Bladder Nut). Northern 
limit in the Niagara district. 
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