68 

 ISOETAOE^. 

 479. IsoETEs, L. 



I. echinospora, Braun. Shallow ponds. 



I. echinospora, Dur. Var. Brannii, Eug. Lake of the Clouds, 



Mt. Mansfield. Peacham, Blanchard. 

 I. echinospora, Dur. Var. robnsta, Eng. Noithern end of 



Isle La. Motte, Priugle. 

 I. ripraia, Eng. Borders of streams and ponds. 

 I. Englemanni, Braun. Var. gracihs, Gray C. C. Frost. 



