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  1. By: Stevens, Neil E. (Neil Everett), - Bergman, H. F. (Herbert Floyd),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1921
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Bergman, H. F. (Herbert Floyd),
    Type: Article
    In: Rhodora
    Volume: 19
    Date: 1917
    Page Range: 41--44
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Bergman, H. F. (Herbert Floyd),
    Type: Article
    In: Rhodora
    Volume: 36
    Date: 1934
    Page Range: 233--235
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  3. By: Bergman, H. F. (Herbert Floyd),
    Type: Article
    In: American journal of botany
    Volume: 8
    Issue: 1
    Date: 1921-01
    Page Range: 50--58
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-
  4. By: Bergman, H. F. (Herbert Floyd),
    Type: Article
    In: American journal of botany
    Volume: 9
    Issue: 5
    Date: 1922-05
    Page Range: 245--252
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-
  5. By: Bergman, H. F. (Herbert Floyd),
    Type: Article
    In: Annals of botany
    Volume: 34
    Date: 1920-01
    Page Range: 13--33
    Publication Info: London, Academic Press [etc.],