AQUATIC PLANTS OF FRESHWATER 



Sagittaria lancifolia (Linn.) or Lance-leaved Arrowhead is an erect 

 and slender plant with the scape sometimes 4 to 5 feet high. The leaves 

 are variable and may be lanceolate or narrow oblong, nerved with a thick 

 midrib, and the flowers white in several whorls. Native in the United 

 States from Delaware to the tropics. 



Sagittaria montevidensis (Cham, and Schlecht) or Giant Arrowhead is 

 a very large plant which may grow to 6 feet in height with leaf blades i 

 to 1 feet long and 3 to 5 inches across. It is native to South America but 

 has been naturalized in the southern part of the United States on both the 

 Atlantic and Pacific coasts. It will grow in pots and thrives fairly well in the 

 house. May be had of dealers. Quite generally used in Aqua-terraria. 



For aquarium culture Sagittaria should be planted in bunches or 

 clusters of three to five plants with the lower tufts deeply set directly 

 into the sand or pebbles, so that the runners will remain covered. 

 The younger plants will be the most likely to thrive in transplanting, as the 

 older leaves usually die down in the fall and winter season, and sometimes 

 after transplanting, but the tufts continually develop new foliage. Those 

 species of Sagittaria which bear linear leaves and remain submerged the 

 greater part of the year are preferable for the house aquarium; those which 

 grow above the surface are handsome foliage plants rather than efficient 

 oxygenators. 



CABOMBA 



Of the aquarium plants those most generally obtainable are the 

 Cabombas, the botanical name taken by Linnaeus from the aboriginal 

 Guianese, but popularly known as the Watershield, Fanwort, Fish Grass, 

 Washington Grass, etc. It is a genus of three species, native to the 

 warmer parts of America, all of similar habit, rooting in the mud and sand 

 of streams, ponds and lakes, and having slender branching stems which 

 grow to a length of several feet. It is a submerged plant except in mid- 

 summer, when the flowers are borne above the water accompanied by the 

 floating floral leaves. The submerged fanshaped leaves are finely dissected, 

 opposite or sometimes verticillated, and the floral leaves small and entire. 

 The tiny flowers are white and yellow, and the fruit enclosed in a prickly 

 pod or casing. 



Cabomba caroliniana (Gray.) C. viridifolia (Hort.) or Carolina Water- 

 shield, Fig. 113, is the species most usually to be obtained of dealers and 

 is largely grown for the aquarium purposes in Maryland, District of 



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