294 AMERICAN MIDLAND NATURALIST 



ORDER 25. RANALES. 



Engler in Eng. and Prantl, Pflnzfm. Nachtr. p. 347 (1897). 



Family 61. CERATOPHYLLEAE DC. Prod., Ill, 

 p. 73 (1828). 



Ceratophyllaceae A. Gray, Ann. Lye. N. Y., IV, p. 41 (1857) 

 DICHOTOPHYLLUM Dillenius, Nov. Gen., p. 91 (17 19) 

 Ceratophyllum Linn., Syst. (1735), Gen. p. 290 (1737), p 

 428 (1754). Dichotophylhmi Moench, Methodus Plant. Hort. Bot 

 Marb., p. 345 (1794), Hydroccratophyllum Vaillant, Act. Ae. R 

 So. Par., p. 16 (1719). Ceratophyllon Vaillant, Bot. Par., p. 22 

 (1723), p. 32-33 (1727), Hydroceratophyllum Bot. Par., p. 105 

 (1727), also Hydroceratum Vaillant, 1. c. [This author seems to 

 have changed his names for this plant rather often and once 

 at least with good reason; for his H ydrocerato phyllum is impossible 

 as a name being composed of six syllables. He even made the 

 first binary name under the genus as Hydroceratum laevius Bot. 

 Par., 1. c. (1727). This is the Ceratophyllum suhmersum Linn., 



Sp. PI., p. 1409 (1763)]- 



Dichotophyllum demersum (Linn.) Moench, Meth., p. 345 



(1794)- 



Ceratophyllum demersum Linn., Sp. PI. p. 992 (1753). Cera- 

 tophyllum aquaticiim Linn., and Hesselgr., Pan Suec, Am. Acad., 

 II, p. 259 (1751)- 



Lake Co. (Higdon and Raddin), Lake Maxinkuckee (H. W. 

 Clarke). Found also in Laporte, Porter, St. Joseph, Berrien, and 

 Van Buren Cos. 



Family 62. HYDROPELTIDEAE Dum., Comm. Bot., p. 

 64 (1823). 



Cabombeae Bartling Ord. Nat., p. 86 (1830), Cabombaceae A. 

 Gray, Ann. Lye. N. Y., IV, p. 46 (1836), Hydropeltideae Dum., 

 Anal. Gen., PI., p. 53 (1829). 



BRASENIA Schreber, Gen. PI., p. 372 (1779)- 



Hydropeltis Michx., Fl. Bor. Am., p. 323 (1803). 



Brasenia Schreberi Gmelin, Syst. Veg., I, p. 853 (1796). 



Hydropeltis purpurea Michx., Fl. Bor. Am., I, p. 324 (1803), 

 Brasenia peltata Pursh, Fl. Am. Sept., p. 389 (1814), Brasenia 



