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  1. By: Humphrey, H. B. (Harry Baker), - Wood, Jessie I. - United States. Division of Mycology and Disease Survey.
    Publication info: [Washington, D.C, Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture], 1935
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Humphrey, H. B. (Harry Baker), - Kempton, F. E. (Forrest Ellwood), - United States. Bureau of Plant Industry. Office of Cereal Crops and Diseases.
    Publication info: [Washington, D.C.], [U.S. Dept. of Agriculture, Bureau of Plant Industry, Office of Cereal Crops and Diseases], [1923?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Humphrey, H. B. (Harry Baker), - Kempton, F. E. (Forrest Ellwood), - United States. Bureau of Plant Industry. Office of Cereal Crops and Diseases.
    Publication info: [Washington, D.C.], [U.S. Dept. of Agriculture, Bureau of Plant Industry, Office of Cereal Crops and Diseases], [1924?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Woolman, Horace Mann, - Humphrey, H. B. (Harry Baker),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1924
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: Humphrey, H. B. (Harry Baker),
    Publication info: Washington, D.C, The Academy, 1908
    Holding Institution: Smithsonian Libraries and Archives
  6. By: Woolman, Horace Mann, - Humphrey, H. B. (Harry Baker),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1924
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Humphrey, H. B. (Harry Baker),
    Type: Article
    In: Annals of botany
    Volume: 20
    Date: 1906-01
    Page Range: 83--108
    Publication Info: London, Academic Press [etc.],