

Counties of Argenteuil and Ottawa. 131 



Betulacece (Birch Family.) 

 Betula papyracea, Ait. (Canoe Birch.) Numerous in some places 

 along the Rouge above the Indian Village and spar- 

 ingly distributed through the woods, being seldom of 

 large size. 

 " excelsa, Ait. (Yellow Birch.) Abundant and generally dis- 

 tributed. 

 Alnus incana, Willd. (Alder.) Forming dense thickets on the shores 

 of all the rivers and lakes. Very tall on rocks at 

 Huckleberry Rapids. 

 SalicacecB (Willow Family.) 

 Salix Candida ? Willd. A little on alluvial soil, Sugar-bush Lake. 

 " discolor, Muhl. Sugar-bush Lake, Montcalm and Mouth of 



Devil's River. 

 " sericea, Marshall. Mouth of Devil's River on sand. 

 " longifolia. Muhl. Sugar-bush Lake, common. 

 " lucida, Muhl. Banks of the Rouge, abundant. 

 Populus tremuloides, Michx. (Aspen.) Grows to a large size on 

 alluvial soil and is common. 

 " grandidentata, Michx. (Common Poplar.) Forms with the 

 last species and white birch dense thickets of young 

 trees where other trees have been removed, grows to 

 a good size in some places. 

 " balsamifera, Linn. (Balsam Poplar.) A few fine trees at 

 Sugar-bush Lake and small bushes up Devil's River 

 and Huckleberry Rapids. 

 Coniferce (Pine Family.) 

 Pinus resinosa. Ait. (Norway Pine.) On limestone and gneiss 

 islands. Trembling Lake, and gneiss ridge ; Lake of 

 Three Mountains, 

 " Strobus, Linn. (White Pine.) The greater part of the White 

 Pine of any size has been removed in this district, 

 but a few pine trees are scattered here and there on 

 all kinds of soil. Numerous at Hamilton's Farm on 

 sand, small trees are numerous on gneiss hills. 

 Abies balsamea, Marshall. (Balsam Fir.) Not very abundant, on 

 sand. 

 " Canadensis, Michx. (Hemlock.) Abundant, reaching a large 



size, and often growing on bare rocks. 

 " alba, Michx. (Spruce.) Very abundant on gneiss hills and 

 sand. 

 Larix Americana, Michx. (Tamarack.) Forms extensive " tamarack 

 swamps," and scattered trees are found in every va- 

 riety of situation. 

 Thuja occidentalis, Linn. (Cedar.) Forming extensive " cedar swamps, 



and pinging the shores of all lakes. 

 Taxus baccata, Linn. var. Canadensis (Ground Hemlock.) Abun- 

 dant, especially in low sandy woods. 



