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  1. By: Mayrhofer, H - Sheard, John W.
    Type: Article
    In: Mycotaxon
    Volume: 82
    Date: 2002
    Page Range: 437--441
    Publication Info: Ithaca, N.Y Mycotaxon
  2. By: Knudsen, Kerry - Lendemer, James Colin - Schultz, Matthias - Kocourková, Jana - Sheard, John W. - Pigniolo, Andrew - Wheeler, Timothy B.
    Type: Article
    In: Opuscula philolichenum
    Volume: 16
    Date: 2017
    Page Range: 15--138
    Publication Info: Philadelphia J. Lendemer 2004-
  3. By: Brodo, Irwin M. (Irwin Murray), - Sheard, John W.
    Type: Article
    In: Opuscula philolichenum
    Volume: 19
    Date: 2020
    Page Range: 163--167
    Publication Info: Philadelphia J. Lendemer 2004-
  4. By: Sheard, John W.
    Type: Chapter
    In: Lichenographia Thomsoniana : North American lichenology in honor of John W. Thomson
    Date: 1998
    Page Range: 37--40
    Publication Info: Ithaca, NY, Mycotaxon, Ltd, 1998
  5. By: Sheard, John W. - Blood, Donald A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 87
    Issue: 3
    Date: 1973
    Page Range: 211--224
    Publication Info: Ottawa Ottawa Field-Naturalists' Club