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By: Seilheimer, Allen VType: ArticleIn: American fern journalVolume: 64Series:Issue:Date: 1974Page Range: 13--14Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Seilheimer, Allen VType: ArticleIn: American fern journalVolume: 68Series:Issue:Date: 1978Page Range: 67--70Publication Info: [Washington, etc.] American Fern SocietySubjects: