374 



THE RIVER-SIDE NATURALIST. 



succulent roots during winter, almost destroyed it in the 

 whole extent of nearly five acres of water, which at times 

 had been completely matted over with it." Flowers June 

 and July. Hooker says all the species grow in water, and 



often present as beautiful an appearance in clear streams 

 as the Fuci do in the ocean. They protect the spawn of 

 fish and harbour innumerable aquatic insects, and afford 

 food by their roots and seeds to various aquatic birds. 



