Catalogue of Canadian Plants. 11 



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Pilea glabra. May 19, 1821. St. Martin. (P. Americana, Torrey, 



var. pubescens, Gray, J. B.) 

 Cannabis sativa (hemp). July 29, 1821. Common, roadside. 

 PlatanacecB. 



Platanus occidentalis (plane-tree). May 29, 1825. 

 Juglandacece. 



Juglans alba (shell-bark hickory). (Carya alba.) 



" tomentosa (mocker-nut hickory). (Carya tomentosa.) 

 " sulcata (thick shell-bark hickory). (Carya sulcata.) 

 " amara (bitter-nut hickory). (Carya amara.) 

 " cinerea (butternut). Mountain. 

 CupulifertR, 



Quercus olivaeformis (bur-oak). (Q. macrocarpa, var. olivaefor- 

 mis, Gray.) 

 " rubra (red oak). 

 " coccinea (scarlet oak). 

 Corylus avellana (hazel-nut). June 22, 1821. Small mountain. 



(C. rostrata, J. B.) 

 Carpinus Americana (hornbeam). 

 Ostrya Virginica (hop hornbeam). 

 Fagus ferruginea (beech). 

 MyricacecB. 



Myrica gale (sweet gale). Sept., 1821. Island opposite Point St. 

 Charles. 

 Betulacece. 



Betula nana (dwarf-birch). June 9, 1825. 



" papyracea (canoe birch). May 11, 1825, and Sept. 11. 

 " populifolia (poplar-leaved birch). Sept. 26. (B. alba, 

 var. populifolia.) 

 Alnus serrulata (smooth alder.) July 29. 



" undulata (green alder). June 11, 1821. (A. viridis.) 

 Salicacece. 



Populus angulata (angled cotton-wood). Sept., 1821. 

 " tremuloides (aspen). May 10, 1821. 

 " grandidentata. September 30. 

 Conifer ce. 



Pinus balsamea (balsam fir). May 25, 1821. Savanne. (Abies 

 balsamea, Gray.) 

 ' strobus (white pine). May 25, 1821. Savanne. 

 M pendula (larch, tamarack). (Larix Americana.) 

 Taxus Canadensis (ground-hemlock). May 20, 1824. 

 Jlracece. 



Arum triphyllum (Indian turnip). June 16, 1821. Papineau "Wood. 

 Symplocarpus fcetidus (skunk-cabbage). Salisb. 

 Typhacece. 



Sparganium simplex (bur-reed). July 23, 1821. Meadows near 

 Gregory's. 

 " ramosum. June 29, 1821. Lachine Wood, et aliis. 

 Typha latifolia (cat-tail). July 24, 1821. Savanne. 

 " vulgaris. Sept. 11, 1821. Boucherville Islands. 

 Lemnacece. 



Lemna polyrrhiza (duck-weed). Sept. 8, 1821. Common. 

 Naiadacece. 



Potamogeton compressus (pond-weed). July 29, 1824. 

 " fluitans. August 14, 1821. 



" lucens. Sept. 8, '21. River, near Point St. Charles. 



tt natans. July 23, 1821. River St. Pierre. 



" perfoliatus. July 27, 1821. River St. Pierre and 



Three Rivers. 



Canadian Nat. 3 Vol. IV. No. 2. 



