Aquarium Plants 73 



of our greenhouse foliage plants. This va- 

 riety of color is most likely caused by the 

 amount of sunlight to which the plants have 

 been exposed. In the aquarium they may 



Fig. 33. Myriophyllum laxum. 



fade to some extent, but enough color will 

 remain to make them a conspicuous and at- 

 tractive addition to our aquarium flora. 

 Monnicra crcnulata. This interesting 



