78 



FEESH-WATBE AQ0AEIA. 



plant that its flowers may Lave the air and light which are 

 necessary to their development. When the flowering season is 

 over, the bladders fill with water and sink the whole plant 

 to the bottom of the river or pond. The rather large yellow 





Fig. 57 Bladderwort (Utricularia vulgaris). 



flowers grow in clusters of six or seven upon the upper part 

 of the stalk, which is raised several inches above the surface of 

 the water. This plant does not often, if ever, grow from seeds, 

 but generally from buds. Towards the end of the year the 

 greater portion of the plant decays, leaving the hardish, oblong 



