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By: Mcalpin, Bruce WType: ArticleIn: American fern journalVolume: 60Series:Issue:Date: 1970Page Range: 62--65Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Tejedor, Adrian - Mcalpin, Bruce WType: ArticleIn: American fern journalVolume: 90Series:Issue:Date: 2000Page Range: 46--47Publication Info: [Washington, etc.] American Fern SocietySubjects: