(Last Modified On 10/31/2012)
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(Last Modified On 10/31/2012)
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Genus
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LEMNA L.
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PlaceOfPublication
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Sp. P1. 970. 1753
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Reference
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C. H. Thompson, Ann. Rept. Missouri Bot. Gard. 9:29. 1898 (reprint, p. 9. 1897).
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Description
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Fronds attached by the basal margins, each bearing a solitary root; reproductive pouches opening as clefts in either margin of the basal portion of the frond. Spadix of 1 pistillate and 2 staminate flowers, surrounded by an inconspicuous spathe.
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Key
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a. Fronds thin, without papillae along the midrib; root-cap strongly curved, gradually tapering to a narrow rounded tip - -1. L. CYCLOSTASA aa. Fronds thicker, with a row of papillae along the midrib; root-cap slightly curved, cylindrical, with a bluntly rounded tip - - 2. L. MINIMA
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