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Please read BHL's Acknowledgment of Harmful Content
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  1. By: I︠A︡kovlev, S. A. (Sergeĭ Anatolʹevich)
    Publication info: shang hai shang wu yin shu guan 上海商务印书馆,
    Holding Institution: Institute of Botany, Chinese Academy of Sciences
  2. By: I︠A︡kovlev, S. A. (Sergeĭ Anatolʹevich)
    Publication info: shang hai shang wu yin shu guan 上海商务印书馆,
    Holding Institution: Institute of Botany, Chinese Academy of Sciences