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THE SEED PLANTS OF TORONTO Corylus rostrata, Ait. The common species. Ostrya virginiana, K. Koch. (Ironwood). Common. Carpinus caroliniana, Walt. (Blue Beech).

Betula alba, var. papyrifera, Spach. Common.

" lutea, Michx. (Gray Birch), Common.

Alnus incana, Moench. (Alder). Abundant in low

grounds.

FAGACEAE (Beech Family).

Fagus grandifolia, Ehrb. (Beech). Very common. Quercus alba, L. (White Oak).

   "   coccinea, Muench (Scarlet Oak).

   "   macrocarpa, Michx. (Bur Oak).

   "   rubra, L. (Red Oak).

   "   velutina, Lam. (Black Oak).

URTICACEAE (Nettle Family). Ulmus americana, L. (White Elm).

,,

fulva, Michx. (Slippery Elm).

" racemosa, Thomas (Cork or Rock Elm). Nearly exterminated.

Morus alba, L. (White Mulberry). An occasional escape.

Cannabis sativa, L. (Hemp).

Humulus lupulus, L. (Common Hop). Escaped. Found in waste places.

Urtica gracilis, Ait. (Nettle).

Laportea canadensis, Gaud. (Wood Nettle).

Pilea pumila, Gray. (Clearweed).

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