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  1. The botrychiaceae of Alberta : a survey of element occurrences of the genera Botrychium and Sceptridium in Alberta /
    By: Williston, Patrick, - Alberta. Alberta Sustainable Resource Development.
    Publication info: [Edmonton] :Alberta Sustainable Resource Development, Resource Data Division,2002.
    Holding Institution: University of Alberta Libraries (
    Subjects: Alberta  Ferns  Identification  Ophioglossaceae  Rare plants  
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  2. Conservation assessment of sensitive moonworts (Ophioglossaceae; Botrychium subgenus Botrychium) on the Kootenai National Forest /
    By: Vanderhorst, James P. - Montana Natural Heritage Program.
    Publication info: Helena, MT :Montana Natural Heritage Program,1997.
    Holding Institution: Montana State Library (
    Subjects: Botrychium  Kootenai National Forest (Mont. and Idaho)  Montana  Ophioglossaceae  Rare plants  
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  3. The Eusporangiatae; the comparative morphology of the Ophioglossaceae and Marattiaceae,
    By: Campbell, Douglas Houghton,
    Publication info: Washington, D. C.,Carnegie Institution of Washington,1911.
    Holding Institution: Cornell University Library
    Subjects: Marattiaceae  Ophioglossaceae  
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  4. Jean Bory de Saint-Vincent and John Torrey correspondence, 1846
    By: Bory de Saint-Vincent (Jean Baptiste Geneviève Marcellin),
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    Subjects: (Jean Baptiste Geneviève Marcellin),  1778-1846  1796-1873  Bory de Saint-Vincent  Correspondence  Equisetum  Lycopodaceae  Ophioglossaceae  Torrey, John,  
    BHL Collections: John Torrey Papers | New York Botanical Garden
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