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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Roth, Georg,
    Publication info: Leipzig, W. Engelmann, 1904-1905
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
  2. By: Roth, Georg,
    Publication info: Dresden, C. Heinrich, 1911
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library