274 BOTANY. 
hollow closed body, which finally becomes open by the 
separation of a hinged lid (Fig. 151, d, e, f). In the cavi- 
ties of these pitchers a watery, slightly acid fluid is secreted; 
Fia. 151.—Two leaves of Nepenthes, the Indian Pitcher-leaf. /f,.the lid, which 
is still closed in the younger leaf. Reduced. 
upon their borders are secreted honey or nectar drops, 
which attract insects, and these falling into the fluid within 
