| Lemna bannatica Waldst. & Kit. ex Schleid. (synonym) |
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| Lemna major Griff. (synonym) |
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| Lemna maxima Blatt. & Hallb. (synonym) |
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| Lemna orbicularis Kit. ex Schult. (synonym) |
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| Lemna orbiculata Roxb. (synonym) |
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| Lemna polyrrhiza L. (synonym) |
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| Lemna polyrrhiza var. concolor Kurz (synonym) |
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| Lemna thermalis P.Beauv. ex Nutt. (synonym) |
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| Lemna transsilvanica Schur (synonym) |
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| Lemna umbonata A.Br. ex Hegelm. (synonym) |
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| Lenticula polyrrhiza (L.) Lam. (synonym) |
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| Spirodela atropurpurea Montandon (synonym) |
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| Spirodela maxima (Blatt. & Hallb.) McCann (synonym) |
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| Spirodela polyrrhiza var. masonii Daubs (synonym) |
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| Telmatophace orbicularis (Kit. ex Schult.) Schur (synonym) |
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| Telmatophace polyrrhiza (L.) Godr. (synonym) |
|
