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  1. By: Rogers, Charles G - Cole, Kenneth S
    Type: Article
    In: The Biological bulletin
    Volume: 49
    Date: 1925-11-01
    Page Range: 338--353
    Publication Info: Woods Hole, Mass Marine Biological Laboratory
  2. By: Rogers, Charles G - Mcclain, B
    Type: Article
    In: Rhodora
    Volume: 100
    Date: 1998
    Page Range: 380--441
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],