Also 8–9 erron. lemma. [a. mod.L. (Linnæus) lemna, Gr. λέμνα.] A genus of aquatic plants; = DUCKWEED.

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[1753.  Chambers, Cycl. Supp., Lemma … is … the name of a small water plant well known to the antients … confounded by late writers among the duck weed kinds.]

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1802.  Bingley, Anim. Biog. (1813), III. 490. The Convallarian Vorticella is frequently found on the stalks of the lemma or duckweed.

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  attrib.  1882.  G. F. Armstrong, Garland fr. Greece, 80. Not hid … under … thick Lethe’s lemna-scum.

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