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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Johnson-Groh, Cindy L. - Riedel, Chandra - Schoessler, Laura - Skogen, Krissa
    Type: Article
    In: American fern journal
    Volume: 92
    Date: 2002
    Page Range: 80--80
    Publication Info: [Washington, etc.] American Fern Society
  2. By: Farrar, Donald R., - Johnson-Groh, Cindy L.
    Type: Article
    In: American fern journal
    Volume: 81
    Date: 1991
    Page Range: 1--6
    Publication Info: [Washington, etc.] American Fern Society
  3. By: Stensvold, Mary C. - Farrar, Donald R., - Johnson-Groh, Cindy L.
    Type: Article
    In: American fern journal
    Volume: 92
    Date: 2002
    Page Range: 150--150
    Publication Info: [Washington, etc.] American Fern Society