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By: Grant, PaulType: ArticleIn: The Canadian field-naturalistVolume: 115Series:Issue: 4Date: 2001Page Range: 709--710Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Spicer, Robert A - Burnham, Robyn J. - Grant, Paul - Glicken, HarryType: ArticleIn: American fern journalVolume: 75Series:Issue:Date: 1985Page Range: 1--5Publication Info: [Washington, etc.] American Fern SocietySubjects: