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By: Ritchie, J CType: ArticleIn: RhodoraVolume: 58Series:Issue:Date: 1956Page Range: 321--325Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]Subjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 70Series:Issue: 4Date: 1956Page Range: 171--181Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 72Series:Issue: 3Date: 1958Page Range: 147--148Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 86Series:Issue: 2Date: 1972Page Range: 184--184Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 86Series:Issue: 2Date: 1972Page Range: 183--184Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 93Series:Issue: 4Date: 1979Page Range: 457--458Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 96Series:Issue: 1Date: 1982Page Range: 118--118Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 103Series:Issue: 4Date: 1989Page Range: 632--632Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ritchie, J CType: ArticleIn: The Canadian field-naturalistVolume: 103Series:Issue: 3Date: 1989Page Range: 470--470Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: