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  1. By: Warming, Eugenius, - Knoblauch, Emil, - Potter, Michael Cressé,
    Publication info: New York, Macmillan & Co, 1895
    Holding Institution: MBLWHOI Library
  2. By: Warming, Eugenius, - Knoblauch, Emil, - Potter, Michael Cressé,
    Edition: [Ed. 2]
    Publication info: London, Swan, [1904]
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  1. By: Potter, Michael Cressé,
    Type: Article
    In: Annals of botany
    Volume: 31
    Date: 1917-07
    Page Range: 435--438
    Publication Info: London, Academic Press [etc.],
  2. By: Potter, Michael Cressé,
    Type: Article
    In: Annals of botany
    Volume: 18
    Date: 1904-01
    Page Range: 121--140
    Publication Info: London, Academic Press [etc.],