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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Nayar, B K
    Type: Article
    In: American fern journal
    Volume: 58
    Date: 1968
    Page Range: 19--29
    Publication Info: [Washington, etc.] American Fern Society
  2. By: Nayar, B K
    Type: Article
    In: American fern journal
    Volume: 50
    Date: 1960
    Page Range: 194--203
    Publication Info: [Washington, etc.] American Fern Society
  3. By: Nayar, B K - Chandra, Prakash
    Type: Article
    In: American fern journal
    Volume: 54
    Date: 1964
    Page Range: 9--19
    Publication Info: [Washington, etc.] American Fern Society
  4. By: Nayar, B K - Bajpai, Nisha
    Type: Article
    In: American fern journal
    Volume: 60
    Date: 1970
    Page Range: 107--118
    Publication Info: [Washington, etc.] American Fern Society