Aquarium Plants 101 



cor data) is a rather coarse, native, herba- 

 ceous plant. The large glossy leaves are 

 heart-shaped with a sharp point, sometimes 

 arrow-shaped or oval. The flowers are 

 borne in dense ears and are blue with yel- 

 low blotches. Pontederia cordata is quite 

 hardy and can be hibernated in the open 

 ground with a very slight covering. It can 

 be propagated without trouble by dividing 

 the plants. 



The Alternate-leaved Cypergrass (Cypcrus 

 altemifolius) is as graceful and decorative 

 as it is easy of culture in a warm room. 

 The long slender stems bear the leaves in a 

 miniature palm-like head, from which young 

 plants sprout freely after they reach their 

 full development. If cut off and planted in 

 small pots they will quickly root and be ready 

 for transplanting in the aquarium, either on 

 the rock or in the bottom, if the water is 

 not too deep. The variety with variegated 

 stems and leaves is very beautiful, but a lit- 

 tle more delicate than the green form. Cy- 



