Abstract
THE duckweeds have intrigued many generations of botanists because of their small size (they include the world's smallest flowering plants) and apparent simplicity of structure. About a century ago, Engler1, on the basis of his study of external morphology of Spirodela (Fig. 1A), suggested that the duckweeds have evolved from the aroids and that Spirodela links the aroids with the rest of the Lemnaceae.
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References
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MAHESHWARI, S. Spirodela polyrrhiza: the Link between the Aroids and the Duckweeds. Nature 181, 1745–1746 (1958). https://doi.org/10.1038/1811745a0
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DOI: https://doi.org/10.1038/1811745a0
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