FROG-BIT TRIBE. 



581 



STEATITES ABIDES (Water-soldier). 



densus. It is a native of North America, but since its 

 introduction has increased to an alarming extent. It 

 is to be found in flower in still water in September. 



1. HYDEOCHAEIS (Frog-bit). Stamens and pistils on 

 different plants; stamens 9 12; ovary 6 -celled; stigmas 

 6. (Name from the Greek hydor, water, and charts, 

 elegance, the plants being showy aquatics.) 



