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  1. By: Case, Francis M. - Cratty, Robert Irvin,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (Robert Irvin),  1809-1884  1850-1942  1853-1940  Alismataceae  Arthur, Joseph Charles,  Botanical specimens  Case, Francis M  Collection and preservation  Colorado  Correspondence  Cratty, R. I  Ecology  Engelmann, George,  Environmental conditions  Iowa  Letters  Meteorology  Observations  Sagittaria  Vegetation and climate  
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  2. By: Cratty, Robert Irvin,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (Robert Irvin),  1809-1884  1850-1942  1853-1940  Alismataceae  Arthur, Joseph Charles,  Botanical specimens  Collection and preservation  Correspondence  Cratty, R. I  Engelmann, George,  Iowa  Letters  Sagittaria  
    BHL Collections: Engelmann Papers, Missouri Botanical Garden