44 AMERICAN MIDLAND NATURALIST 



SPIRODELA Schleiden, Linnaea, XIII, p. 391, (1839). 



Lemna Linn. 1. c. in part. Tclmatophace Godr. Fl. Lorr. ed. 

 I, t. 3, p. 18, also Mey, Fl. Hanov., p. 543, No. 2, also Bubani, 

 Fl. Pyr. IV, p. 24, (1901). 



Spirodela polyrhiza (Linn.) Schleiden 1. c. p. 392. 



Lemna polyrhiza Linn. 1. c. 



Common in pools. Notre Dame No. 10567, South Bend, 

 near Nutwood, Lakeville, Dollar Lake, Chain Lakes (St. Joseph 

 Co.). Hudson Lake, Sagunay, Laporte, Michigan City, (Laporte 

 Co.). Millers (Lake Co.), Mineral Springs, Tamarack, and Smith 

 St. Joseph, Bertrand, Benton Harbor, Mich. (Berrien Co.); San 

 Jose Park near Lawton ,Mich., (Cass Co.). 



Order 11. AROIDEAE. 



Jussieu Gen. PL p. 23, (1789) also BartUng, Ord. Nat. 



PI. p, 25, (1830). (Under name of Class.) 

 Arales Britton, Man. Fl. 2nd Ed. p. 5, 229. 

 Family 21. ARACEAE Necker, Act. Acad. Theod. 



Palat. 2, p. 462, (1770). 

 Piperiiae Linn. Phil. Bot. p. 27, (1751) in part, also do. (1755). 

 Callaceae Bartling, 1. c. pp. 25 and 67, in part. 

 • ARISAEMA Martins, '' Flora, 14 p. 459, (1831). 



Arum Linn. Syst. (1735) Gen. PI. p. 277, (1737), p. 431, 

 (1754) Sp. PI. p. 964, (in part). 



Arisaema triphyllum (Linn.) Torrey, F'l. N. Y. 2, p. 239, (1843). 



Artim triphyllum Linn. Sp. PI. p. 965, (1753). 



Notre Dame, Ind., Nos. 10566, 3304, 2491, 831. Near St. 

 Mary's Academy along the St. Joseph River, (Dr. F. Powers). 

 I have found it also at Lakeville, Sagunay, Granger, Sweeney's, 

 Nutwood, Mishawaka, South Bend, Woodland, Pine, Terrc Coupee, 

 Chain Lakes, in the Kankakee Marsh (St. Joseph Co.), Smith, 

 Tamarack, Warren, Mineral Springs (Porter Co.), Millers, Dune 

 Park, Michigan City, Munich, Mich., St. Joseph, Benton Harbor 

 Niles, Bertrand, Bankson Lake, Grand Beach, Galien, Mich. 

 Also in Elkhart Co. Lake Maxinkuckee, H. W. Clarke. 



MURICAUDA Small, Fl. S. E. U. S. p. 227, (1903). 

 Arisaema Martins 1. c. in part. 



