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  1. By: Rossbach, Ruth
    Type: Article
    In: Contributions from the Gray Herbarium of Harvard University
    Issue: 130
    Date: 1940
    Page Range: 57--213
    Publication Info: [Cambridge, Mass.] Harvard University -1984]
  2. By: Rossbach, Ruth
    Type: Article
    In: Rhodora
    Volume: 42
    Date: 1940
    Page Range: 203--213
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  3. By: Rossbach, Ruth
    Type: Article
    In: Rhodora
    Volume: 42
    Date: 1940
    Page Range: 105--143
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  4. By: Rossbach, Ruth
    Type: Article
    In: Rhodora
    Volume: 42
    Date: 1940
    Page Range: 158--193
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  5. By: Rossbach, Ruth
    Type: Article
    In: Rhodora
    Volume: 42
    Date: 1940
    Page Range: 57--83
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],