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  1. By: Kraus, Ezra Jacob, - Kraybill, Henry Reist,
    Publication info: Corvallis, Or, 1918
    Holding Institution: Library of Congress
  1. By: Kraus, Ezra Jacob,
    Type: Article
    In: Botanical gazette
    Volume: 64
    Issue: 6
    Date: 1917
    Page Range: 524--526
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991
  2. By: Kraus, Ezra Jacob,
    Type: Article
    In: American journal of botany
    Volume: 7
    Issue: 10
    Date: 1920-12
    Page Range: 409--416
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-