54 



AQUATIC PLANTS 



HETERANTHERA 

 Heteranthera zostercefolia is a very light green plant, slightly re- 

 sembling Anacharis, but with longer, more widely separated leaves. It is 

 a rapid grower, soon reaching the top, where it lies limp on the surface 

 of the water. Can occasionally be had of dealers. 



Fig. 39. Heteranthera (Life size) 



