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  1. By: Marr, Kendrick L - Hebda, Richard J - MacKenzie, William H.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 125
    Issue: 3
    Date: 2011-07-01
    Page Range: 227--234
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Marr, Kendrick L - Hebda, Richard J
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 53
    Date: 2006
    Page Range: 288--298
    Publication Info: Berkeley, California Botanical Society,
  3. By: Nagorsen, David W. - Keddie, Grant - Hebda, Richard J
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 1
    Date: 1995
    Page Range: 11--18
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Marr, Kendrick L - Hebda, Richard J - Zamluk, Elizabeth Anne,
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 58
    Date: 2011
    Page Range: 214--233
    Publication Info: Berkeley, California Botanical Society,
  5. By: Harrison, Kristen - Hebda, Richard J
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 58
    Date: 2011
    Page Range: 32--49
    Publication Info: Berkeley, California Botanical Society,