. The Canadian field-naturalist. Natural history. 1997 Reddoch and Reddoch: The Orchids in the Ottawa District 55. Figure 10. Cypripedium acaule, mixed forest on sandstone. Stony Swamp Conservation Area, Regional Municipality of Ottawa-Carleton, Ontario, 15 June 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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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnaturalhistory, booky