38 Fresh Water Aquarium 



where it forms good and welcome hiding 

 places for many of the small inhabitants of 

 the water. It is common all over the United 

 States. 



Fontinalis is one of the largest aquatic 

 mosses and forms dense masses, ranging in 

 color from a bright, to an almost blackish 

 olive-green. The stems are about one foot 

 long, frequently and irregularly divided. 

 The leaves, which resemble large scales, are 

 placed densely around the stem. Fontinalis 

 antipyretica, as the scientific name indicates, 

 was valued as a preventative and a cure for 

 scalds and burns. 



Fontinalis dclacarlica is of a more delicate 

 growth and has smaller leaves than the pre- 

 vious variety. It is of less value for the 

 aquarium than Fontinalis antipyretica, as it 

 is soft and of little resistance. It should not 

 be used as long as the other variety can be 

 obtained. 



Common Starwort (Callitriche verna) is a 

 valuable plant for the aquarium, where it 



