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By: Ledingham, George F. - Fahselt, M DType: ArticleIn: SIDA, contributions to botanyVolume: 1Series:Issue:Date: 1964Page Range: 313--327Publication Info: [Dallas W. F. Mahler, etc.] 1962-Subjects:
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By: Harms, Vernon L - Ledingham, George F.Type: ArticleIn: The Canadian field-naturalistVolume: 100Series:Issue: 1Date: 1986Page Range: 107--110Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ledingham, George F.Type: ArticleIn: The Canadian field-naturalistVolume: 81Series:Issue: 3Date: 1967Page Range: 216--217Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ledingham, George F.Type: ArticleIn: The Canadian field-naturalistVolume: 95Series:Issue: 1Date: 1981Page Range: 116--116Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Harms, Vernon L - Hudson, John H. - Ledingham, George F.Type: ArticleIn: The Canadian field-naturalistVolume: 100Series:Issue: 1Date: 1986Page Range: 45--51Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: