NATURAL HISTORY, TORONTO REGION 
OrraceaE (Olive Family). 
Fraxinus americana, L. (White Ash). 
4 excelsior, L. (European Ash). Planted. 
7 nigra, Marsh. (Black Ash). 
- pennsylvanica, Marsh. (Red Ash). Not 
common. 
Syringa vulgaris, L. (Lilac). Introduced. 
Ligustrum vulgare, L. (Privet). Introduced. 
GentranacEaE (Gentian Family). 
Gentiana andrewsii, Griseb. (Closed Gentian). 
we crinita, Froel. (Fringed Gentian). 
quinquefolia, L. 
saponaria, L. (Soapwood Gentian). 
Menyanthes trifoliata, L. (Water Buckbean). 
“ 
ce 
ApocynacEaE (Dogbane Family). 
Vinea minor, L. (Common Periwinkle). A rare 
escape. 
Apocynum androsaemifolium, L. (Dogbane). 
e cannabinum, L. (Indian Hemp). Both 
species grow on the Island. 
ASCLEPIADACEAE (Milkweed Family). 
Asclepias incarnata, L. (Swamp milkweed). 
of phytolaceoides, Pursh. (Poke milkweed). 
si syriaca, L. (Common Milkweed). 
tuberosa, L. (Pleurisy-root or Butterfly- 
weed). — 
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