LEMNACEAE (Duckweed family)

Landoltia punctata (G.F.W. Mey.) D.H. Les & D.J. Crawford dotted duckmeat [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R9W, S26; 15 feet][ditch on south side of Country Club Dr., near Elliot Rd.; August 30, 1997; Collected & identified by Chuck Walker; #LA200]

Lemna minor L. common duckweed [US; Iowa; Fremont County; Riverton; T68N, R41W, S18; 930 feet][ditch, east side of #313, 5 m south of the turn-off to the Riverton Check Station, Riverton Wildlife Management Area; July 18, 1999; Collected & identified by Chuck Walker; #IA67]

Lemna perpusilla Torr. minute duckweed [US; Mississippi; Washington County; Leland; T18N, R7W, S15; 33 deg. 24.731'N, 90 deg. 54.634'W; 125 feet][in lawn along Deer Creek (S Deer Creek Drive) near Stoneville-Leland municipal line; October 10, 2005; Collected by Chuck Walker; Identified by Danny Skojac & Chuck Walker; #MS18]

Spirodela polyrhiza (L.) Schleiden common duckmeat, giant duckweed [US; Florida; Broward County; Davie; T50S, R41E, S28; 5 feet][in South New River Canal on the south side of Orange Dr., 400 m west of S. University Drive (near Tree Tops Park) January 10, 1998; Collected & identified by Chuck Walker; #FL82]

Wolffia brasiliensis Weddell Brazilian watermeal [US; Mississippi; Washington County; T19N, R7W, S26; 33 deg. 28.114'N, 90 deg. 54.091'W; 115 feet] [in water on the south side of bald-cypress swamp, 5-10 m east of Experiment Farm Rd., Delta Experimental Forest; August 31, 2008; Collected & identified by Chuck Walker; #MS161]