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  1. By: Powell, George Townsend,
    Publication info: Boston, Munson-Whitaker co, [18--?]
    Holding Institution: Library of Congress
  1. By: Powell, George Townsend,
    Type: Article
    In: Journal of the New York Botanical Garden
    Volume: 15
    Issue: 178
    Date: 1914-10
    Page Range: 191--197
    Publication Info: Lancaster, Pa Published for the Garden by the New Era Printing Co 1900-