Flora Batava, deel 8, Jan Kops en Herman Christiaan van Hall (1844)
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Das Pflanzenreich, Potamogetonaceae, deel 11, H.G.A. Engler (1907)
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English Botany, or Coloured Figures of British Plants, deel 9, J.E. Sowerby (1869)
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Illustrations of the British Flora, Walter Hood Fitch (1924)
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Flora Danica Georg Christian Oeder e.a. (1761-1888)
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