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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:
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By: Burnham, Robyn J. - Graham, Alan,Type: ArticleIn: Annals of the Missouri Botanical GardenVolume: 86Series:Issue:Date: 1999Page Range: 546--589Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Burnham, Robyn J.Type: ArticleIn: Annals of the Missouri Botanical GardenVolume: 95Series:Issue: 1Date: 2008Page Range: 51--71Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects:
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By: Burnham, Robyn J. - Revilla-Minaya, CaissaType: ArticleIn: Annals of the Missouri Botanical GardenVolume: 98Series:Issue: 2Date: 2011Page Range: 196--205Publication Info: St. Louis, Missouri Botanical Garden Press, 1914-Subjects: