. The Canadian field-naturalist. 1979 BRUNTON: PELLAEA IN ALBERTA 289 clined to retain this status for the utility of indicating relationships in the genus. On the basis of more complete range data and the demonstration of ecological preferences of each species which were observed during our study, we feel that there is sufficient evidence to justify each taxa being treated specifically. Distribution and Ecology Pellaea atropurpurea (Purple Cliff-brake) (Figures 1, 2). This fern is known sparingly in Canada from British Columbia to Quebec. It is considered to be the rarest Pellaea in Canada (R
. The Canadian field-naturalist. 1979 BRUNTON: PELLAEA IN ALBERTA 289 clined to retain this status for the utility of indicating relationships in the genus. On the basis of more complete range data and the demonstration of ecological preferences of each species which were observed during our study, we feel that there is sufficient evidence to justify each taxa being treated specifically. Distribution and Ecology Pellaea atropurpurea (Purple Cliff-brake) (Figures 1, 2). This fern is known sparingly in Canada from British Columbia to Quebec. It is considered to be the rarest Pellaea in Canada (Rigby and Britton 1970), although recently it has been found to be locally abundant in Banff. Figure 1. Distribution of Pellaea atropurpurea in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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