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  1. By: Davidson, John, - British Columbia. Botanical Office.
    Publication info: Victoria, B.C, W.H. Culllin, 1915
    Holding Institution: Canadiana.org
  1. By: Davidson, John,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 33
    Issue: 1
    Date: 1919-04
    Page Range: 6--9
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Davidson, John,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 36
    Issue: 9
    Date: 1922-12
    Page Range: 168--172
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Davidson, John,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 37
    Issue: 2
    Date: 1923-02
    Page Range: 31--31
    Publication Info: Ottawa Ottawa Field-Naturalists' Club