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  1. By: Snell, Walter H. (Walter Henry),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1922
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Snell, Walter H. (Walter Henry),
    Type: Article
    In: Mycologia
    Volume: 14
    Issue: 2
    Date: 1922
    Page Range: 55--60
    Publication Info: [Bronx, etc.], New York Botanical Garden,
  2. By: Snell, Walter H. (Walter Henry),
    Type: Article
    In: American journal of botany
    Volume: 10
    Issue: 8
    Date: 1923-10
    Page Range: 399--411
    Publication Info: Lancaster, Pa, Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914-
  3. By: Snell, Walter H. (Walter Henry),
    Type: Article
    In: Rhodora
    Volume: 44
    Date: 1942
    Page Range: 93--97
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],