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By: Simpson, D RType: ArticleIn: Fieldiana. BotanyVolume: 36Series:Issue:Date: 1972Page Range: 1--11Publication Info: [Chicago], Chicago Natural History Museum, 1958-Subjects:
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By: Simpson, D RType: ArticleIn: PhytologiaVolume: 29Series:Issue:Date: 1974Page Range: 277--280Publication Info: Bronx Park, New York H.A. Gleason and H.N. MoldenkeSubjects:
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By: Simpson, D RType: ArticleIn: PhytologiaVolume: 30Series:Issue:Date: 1975Page Range: 304--316Publication Info: Bronx Park, New York H.A. Gleason and H.N. MoldenkeSubjects:
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By: Simpson, D RType: ArticleIn: PhytologiaVolume: 33Series:Issue:Date: 1976Page Range: 4--8Publication Info: Bronx Park, New York H.A. Gleason and H.N. MoldenkeSubjects:
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By: Simpson, D RType: ArticleIn: PhytologiaVolume: 51Series:Issue:Date: 1982Page Range: 303--322Publication Info: Bronx Park, New York H.A. Gleason and H.N. MoldenkeSubjects: