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  1. By: Perdue, Robert E
    Type: Article
    In: Lasca leaves
    Volume: 18
    Date: 1968
    Page Range: 55-59
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  2. By: Perdue, Robert E
    Type: Article
    In: Rhodora
    Volume: 63
    Date: 1961
    Page Range: 119--120
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  3. By: Perdue, Robert E
    Type: Article
    In: Contributions from the Gray Herbarium of Harvard University
    Issue: 185
    Date: 1959
    Page Range: 129--162
    Publication Info: [Cambridge, Mass.] Harvard University -1984]
  4. By: Perdue, Robert E
    Type: Article
    In: Rhodora
    Volume: 59
    Date: 1957
    Page Range: 293--299
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  5. By: Perdue, Robert E
    Type: Article
    In: Rhodora
    Volume: 64
    Date: 1962
    Page Range: 328--329
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]