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  1. By: Kosanke, Robert M. (Robert Max) - Illinois State Geological Survey.
    Publication info: Urbana, Ill, State Geological Survey, 1950
    Holding Institution: University Library, University of Illinois Urbana Champaign
  1. By: Wilson, L. R. (Leonard Richard), - Kosanke, Robert M. (Robert Max)
    Type: Article
    In: Torreya
    Volume: 40
    Issue: 1
    Date: 1940
    Page Range: 1--5
    Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945