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  1. By: Wehmer, C. (Carl),
    Publication info: Jena :G. Fischer ;1912-1915.
    Holding Institution: Harvard University Botany Libraries
    BHL Collections: Harvard University Herbarium, Botany Libraries
  2. By: Wehmer, C. (Carl), - Wehmer, Carl,
    Publication info: Jena :G. Fischer,1911.
    Holding Institution: Multiple institutions