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  1. By: Haecker, Valentin,
    Publication info: Braunschweig, F. Vieweg, 1911
    Holding Institution: MBLWHOI Library
  2. By: Haecker, Valentin,
    Publication info: Jena, Verlag von Gustav Fischer, 1900
    Holding Institution: MBLWHOI Library
  1. By: Haecker, Valentin, - Meyer, Georg
    Type: Article
    In: Zoologische Jahrbücher
    Volume: 15
    Date: 1902
    Page Range: 267--294
    Publication Info: Jena [Germany], G. Fischer,
  2. By: Haecker, Valentin,
    Type: Article
    In: Annals of botany
    Volume: 9
    Date: 1895-03
    Page Range: 95--101
    Publication Info: London, Academic Press [etc.],