NUTRITION 



87 



Fig. 64. — Bladderwort {Utricul'aria Sp.). Aquatic insects are held 

 captive in the tiny floating bladders, where they are digested and absorbed. 

 (Photo by the author.) 



Fig. 65. — A sundew (Drosera intermedia), showing the glandular tipped 

 tentacles on the leaves. When an insect alights on a leaf he is held by 

 the sticky secretion; the tentacles then bend over in contact with his body, 

 holding him more firmly, and pouring out a protein-digesting enzyme 

 secreted byj their glands. 



