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  1. By: Ogden, E C
    Type: Article
    In: Rhodora
    Volume: 45
    Date: 1943
    Page Range: 57--105
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  2. By: Ogden, E C
    Type: Article
    In: Rhodora
    Volume: 45
    Date: 1943
    Page Range: 119--163
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  3. By: Ogden, E C
    Type: Article
    In: Rhodora
    Volume: 45
    Date: 1943
    Page Range: 171--214
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  4. By: Ogden, E C
    Type: Article
    In: Contributions from the Gray Herbarium of Harvard University
    Issue: 147
    Date: 1943
    Page Range: 57--214
    Publication Info: [Cambridge, Mass.] Harvard University -1984]
  5. By: Raynor, G S - Ogden, E C - Hayes, J V
    Type: Article
    In: Rhodora
    Volume: 78
    Date: 1976
    Page Range: 473--487
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]
  6. By: Ogden, E C - Odgen, E C
    Type: Article
    In: Rhodora
    Volume: 44
    Date: 1942
    Page Range: 406--407
    Publication Info: [Cambridge, Mass., etc.] New England Botanical Club [etc.]