Aquarium Plants 



4i 



Fig. 15. a. — Common Starwort, Callitrichc vcrna. 

 b. — Fall Starwort, Callitriche aatumnalis. 



much more graceful and more brightly col- 

 ored than the old or lower part, it is well to 

 cut the lower part off as soon as the top 

 nears the surface, and then replant the top. 



