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  1. By: Johnson, D S
    Type: Article
    In: Botanical gazette
    Volume: 69
    Issue: 4
    Date: 1920
    Page Range: 347--348
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991
  2. By: Johnson, D S
    Type: Article
    In: The Bulletin of zoological nomenclature
    Volume: 12
    Date: 1956
    Page Range: 200--205
    Publication Info: London International Trust for Zoological Nomenclature
  3. By: Johnson, D S
    Type: Article
    In: Botanical gazette
    Volume: 71
    Issue: 4
    Date: 1921
    Page Range: 331--333
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991