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By: Hopkins, Lewis S.Type: ArticleIn: American fern journalVolume: 3Series:Issue:Date: 1913Page Range: 17--18Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Hopkins, Lewis S.Type: ArticleIn: American fern journalVolume: 9Series:Issue:Date: 1919Page Range: 86--88Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Hopkins, Lewis S.Type: ArticleIn: American fern journalVolume: 1Series:Issue:Date: 1911Page Range: 101--103Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Hopkins, Lewis S.Type: ArticleIn: American fern journalVolume: 3Series:Issue:Date: 1913Page Range: 116--118Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Hopkins, Lewis S.Type: ArticleIn: Annals of the Carnegie MuseumVolume: 11Series:Issue: 3-4Date: 1917-10Page Range: 362--363Publication Info: [Pittsburgh], Published by authority of the Board of Trustees of the Carnegie Institute, 1901-Subjects:
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By: Hopkins, Lewis S.Type: ArticleIn: American fern journalVolume: 1Series:Issue:Date: 1911Page Range: 100--101Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Jennings, Otto E. (Otto Emery), - Hopkins, Lewis S.Type: ArticleIn: American fern journalVolume: 3Series:Issue:Date: 1913Page Range: 38--48Publication Info: [Washington, etc.] American Fern SocietySubjects:
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By: Hopkins, Lewis S.Type: ArticleIn: TorreyaVolume: 19Series:Issue: 12Date: 1919Page Range: 243--244Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945Subjects: