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  1. By: Hill, Nicholas M
    Type: Article
    In: The Canadian field-naturalist
    Volume: 104
    Issue: 2
    Date: 1990
    Page Range: 335--335
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hill, Nicholas M - Johansson, Mats E
    Type: Article
    In: Rhodora
    Volume: 94
    Date: 1992
    Page Range: 141--155
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  3. By: Garbary, David J. - Hill, Nicholas M - Miller, Anthony G.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 127
    Issue: 4
    Date: 2014-01-03
    Page Range: 319--331
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Hill, Nicholas M - Beveridge, Leah - Flynn, Andrea - Garbary, David
    Type: Article
    In: The Canadian field-naturalist
    Volume: 124
    Issue: 2
    Date: 2010-04-01
    Page Range: 151--158
    Publication Info: Ottawa Ottawa Field-Naturalists' Club