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  1. By: Orton, W. A. (William Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1913
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Orton, W. A. (William Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1914
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Orton, W. A. (William Allen),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1914
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Orton, W. A. (William Allen),
    Type: Article
    In: American journal of botany
    Volume: 5
    Issue: 6
    Date: 1918-06
    Page Range: 279--283
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-