NATURAL HISTORY, TORONTO REGION 



Polygala senega, L. 



verticillata, L. 



EUPHORBIACEAE (Spurge Family). 



Euphorbia helioscopia, L. (Sun Spurge), 

 hirsuta, Wiegand. 

 lathyrus, L. 

 maculata, L. 

 platyphylla, L. 

 polygonifolia, L. 



CAIXITRICHACEAE (Water Starwort Family). 



Callitriche palustris, L. 



ANA.CARDIACEAE (Cashew Family). 



Rhus cotinus, L. (Smoke Tree). Planted. 

 " toxicodendron, L. (Poison Ivy). 

 " typhina, L. (Staghorn Sumach). 



CELASTRACEAE (Staff Tree Family). 



Evonymus atropurpureus, Jacq. (Burning Bush). 



In the Humber Valley. 



" obovatus, Nutt. Plentiful up the Don. 



Celastrus scandens, L. (Bitter-sweet). Common. 



STAPHTTLEACEAE (Bladder Nut Family). 



Staphylea trifolia, L. (Bladder Nut). Northern 

 limit in the Niagara district 

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