Lemna Lead 6
Home Keys To Genera List Of Species Search Lemna Spirodela Wolffia Wolffiella Wayne's Word

On-Line Key to the Lemnaceae

On-Line Key to the Lemnaceae

Key to Species of LEMNA

Lead 6

  • Upper surface gen with midline row of minute papules; lower surface becoming reddish (especially near root); overwintering turions (small, rootless or short-rooted, starch-filled daughter plants) becoming dark green or brown in autumn. - Lemna turionifera

  • Upper surface gen smooth without midline row of papules; lower surface green; without dark-colored, overwintering turions; widespread distribution throughout North America. - Lemna minor

  • Upper surface gen smooth with prominent apical papule; lower surface becoming reddish; without dark, overwintering turions; southeastern United States and Hawaii. - Lemna obscura

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