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  1. By: Massachusetts. State forester. - Colley, R. H. - Speare, Alden T.
    Publication info: Boston, Wright & Potter, printing company, state printers, 1912
    Holding Institution: Library of Congress
  1. By: Collins, Frank S. (Frank Shipley), - Lewis, Ivey Foreman, - Colley, R. H.
    Type: Article
    In: Rhodora
    Volume: 18
    Date: 1916
    Page Range: 90--92
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Colley, R. H.
    Type: Article
    In: American journal of botany
    Volume: 2
    Issue: 2
    Date: 1915-02
    Page Range: 89--92
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-