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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Bayer, Edvin,
    Publication info: Prag, Buchdr. Dr. Ed. Grégr a Syn, 1920
    Holding Institution: Harvard University Botany Libraries
  2. By: Bayer, Edvin,
    Publication info: Praha, 1902
    Holding Institution: Harvard University Botany Libraries