HYDROCHARITACEAE. 



ELODEA L. C. Rich. 



Elodea guyanensis. L. C. Rich, in Mem. de l'lnst. de France. II. (1811) 



p. 75 t. 1. 

 Lower Surinam River near plant. Jagtlsst: Focke 602 in ditches fl. 



Octob. (= Udora suriuamensis Miq. in Linnaea XVIII (1844) p. 241. 

 Paramaribo: in ditches: Versteeg 498 (fl. June). 

 Upper Tapanaboni River: Versteeg 923 (fl. Octob.) 



HYDROMYSTRIA Q. F. W. Meyer. 



Hydromystria stolonifera O. F. W. Mey. Prim. Fl. Esseq. 152. 

 Trianea bogotensis Karsten. 

 Surinam River: Versteeg 497 (fl. June.) 

 All tropical America. 



