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By: Hart, J AType: ArticleIn: The Canadian field-naturalistVolume: 63Series:Issue: 3Date: 1949Page Range: 101--102Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Hart, J AType: ArticleIn: The Canadian field-naturalistVolume: 43Series:Issue: 5Date: 1929-05Page Range: 104--104Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Hart, J AType: ArticleIn: The Canadian field-naturalistVolume: 63Series:Issue: 5Date: 1949Page Range: 213--213Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Hart, J AType: ArticleIn: The Canadian field-naturalistVolume: 44Series:Issue: 3Date: 1930-03Page Range: 68--69Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Hart, J A - Price, R AType: ArticleIn: Journal of the Arnold ArboretumVolume: 71Series:Issue: 3Date: 1990Page Range: 275--322Publication Info: Cambridge, Mass Arnold Arboretum, Harvard University [etc.] 1919-Subjects: