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  1. By: Bennett, Mary Allison, - Waggoner, Harry Dwight,
    Publication info: Boston, D.C. Heath and company, [c1926]
    Holding Institution: Library of Congress
  1. By: Waggoner, Harry Dwight,
    Type: Article
    In: American journal of botany
    Volume: 4
    Issue: 5
    Date: 1917-05
    Page Range: 299--313
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-