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By: Pickering, Spencer U., - Theobald, Fred. V. (Frederick Vincent),Edition:Publication info: London, Simpkin, Marshall, Hamilton, Kent, 1908Volume:Series:Holding Institution: NCSU LibrariesSubjects:BHL Collections:
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By: Pickering, Spencer U.,Type: ArticleIn: Annals of botanyVolume: 31Series:Issue:Date: 1917-04Page Range: 181--187Publication Info: London, Academic Press [etc.],Subjects: