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By: Edson, Josephine ZollmanType: ArticleIn: American fern journalVolume: 18Series:Issue:Date: 1928Page Range: 56--57Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Edson, Josephine ZollmanType: ArticleIn: American fern journalVolume: 18Series:Issue:Date: 1928Page Range: 87--93Publication Info: [Washington, etc.] American Fern SocietySubjects: