Title: The Canadian field-naturalist
Identifier: canadianfieldnat451931otta (find matches)
Year: 1931 (1930s)
Authors: Ottawa Field-Naturalists' Club
Subjects:
Publisher: Ottawa, Ottawa Field-Naturalists' Club
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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May, 1931) The Canadian Field-Naturalist 101
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Figure 2,âSouth Shore of Great Slave Lake at Grant Point, Mackenzie, ten miles west of Taltson River August 20, 19H. Photo, by Francis Harper. from other trees well out on the sandy or gravelly beaches of lakes. In the Wood Biiffalo range south of Fort Smith the species is abundant, and attains a height of 75 or 80 feet and a diameter of nearly two feet. Others of about equal size were noted at Pelican Portage on the Athabaska. In the vicinity of Fort Smith the leaves had turned yellow and russet brown by September 7. The trunks of young trees make excellent ridge-poles for tents. Myrica Gale L. Sweet Gale.â'Mouth of Chariot River, June 28; Hill Island Lake, July 15; Tsu Lake, August 9. This fragrant shrub was also noted at Tsalwor Lake, Tazin Lake, and junction of Tazin and Taltson Rivers. It was generally found by the shores of lakes or streams. Betula papyrifera Marsh. Canoe Birch.ââ This is a common tree nearly everywhere in the territory covered during the seasonâalong the Saskatchewan at Edmonton, and throughout the valleys of the Athabaska, Tazin, Taltson, and Slave Rivers. It grows ih a variety of situations, irom rocky hills to low, sandy shores. In the Tazin Highlands it reaches a fair size (40 feet or so) in favourable spots, but remains rather stunted in exposed, rocky places. By August 6, in the vicinity of Tsu Lake, the leaves on some of the trees were showing a tendency to turn yellow. By October 9, in the vicinity of Calling River, the birches had shed their leaves for the most part. I noticed birch-bark canoes on Lake Athabaska and on the lower Taltson River. A large proper* tion of the natives, however, were using factory- made canoes, or even rowboats. Betula glandulosa Michx. ? Dwarf Birch.â Thluicho Lake, July 3; Tazin Lake, July 6. Also noted at Hill Island Lake and at Tthikethe Gorge on the Tazin River. In the muskeg and prairie country immediately south of Fort Smith I found great quantities of dwarf birch. Here, on September 7, the leaves were russet and red. The species was also noted in the Wood Buffalo range. Alnus crispa (Ait.) Pursh. Green Alder.â Grand Rapids, May 24; mouth of Chariot River, June 28. Alnus tenuifolia Nutt. River Alder.âTazin Lake, July 6; Taltson River below Napie Falls, August 2. (Alders, of undetermined species, were noted at numerous other places.) Geocaulon lividum (Richards.) Pernald.â-Mouth

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