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  1. By: Zika, Peter F. - Alverson, Edward R - Wagner, Warren W - Wagner, F. S. (Florence Signaigo),
    Type: Article
    In: American fern journal
    Volume: 92
    Date: 2002
    Page Range: 239--240
    Publication Info: [Washington, etc.] American Fern Society
  2. By: Alverson, Edward R
    Type: Article
    In: American fern journal
    Volume: 79
    Date: 1989
    Page Range: 95--102
    Publication Info: [Washington, etc.] American Fern Society
  3. By: Soltis, Pamela S - Soltis, Douglas E - Alverson, Edward R
    Type: Article
    In: American fern journal
    Volume: 77
    Date: 1987
    Page Range: 42--49
    Publication Info: [Washington, etc.] American Fern Society
  4. By: Christy, John A. (John Ashton), - Alverson, Edward R - Thomas, Duncan W.
    Type: Article
    In: American fern journal
    Volume: 105
    Date: 2015
    Page Range: 56-58
    Publication Info: [Washington, etc.] American Fern Society
  5. By: Alverson, Edward R
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 36
    Date: 1989
    Page Range: 217--217
    Publication Info: Berkeley, California Botanical Society,
  6. By: Alverson, Edward R
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 38
    Date: 1991
    Page Range: 202--203
    Publication Info: Berkeley, California Botanical Society,
  7. By: Alverson, Edward R
    Type: Article
    In: American fern journal
    Volume: 100
    Date: 2010
    Page Range: 230--233
    Publication Info: [Washington, etc.] American Fern Society
  8. By: Zika, Peter F. - Alverson, Edward R
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 52
    Date: 2005
    Page Range: 273--274
    Publication Info: Berkeley, California Botanical Society,