364 Descriptions of Malayan Plants. 



is secreted. The margin is finely and regularly striated, and 

 generally more highly coloured than the rest of the urn ; it 

 turns inwards, and forms a peculiar inverted rim, which is 

 denticulate at the edge, in a manner corresponding to the 

 strise. By this peculiar inversion, it becomes impossible 

 entirely to empty the cup of its water by holding it down- 

 wards, and it also forms a kind of trap for whatever enters 

 from without, as ingress proves easier than regress, owing to 

 the row of teeth just mentioned, which oppose themselves 

 to it. The cups, in consequence, are almost always found 

 full of insects that have been lured into the toil, and paid 

 the forfeit of their curiosity. While young, the mouth of 

 the cup is closed by an operculum or lid, attached by a kind 

 of hinge to the posterior angle, which opens at a certain 

 stage, and never closes again. The young cups are about 

 half-full of a pure, limpid, and almost tasteless fluid, but 

 after the opening of the operculum it soon becomes polluted 

 with foreign matter. It has been stated that the lid shuts 

 every night to supply the waste of fluid during the preceding 

 day, but a very little observation shews this to be a mistake. 

 The Malay name of the genus is Priokra, or Kachongbruh, 

 which signifies the Monhey-cup, 



NEPENTHES RAFFLESIANA. (W. J.J 

 Foliis petiolatis, ascidiis inferiorum ventricoso-campanula- 

 tis antice membranaceo-alatis, superiorum infundibuliformi- 

 bus nudis, omnium ore pulcherrime striato obliquo postice 

 assurgente. 



Native of the forests of the island of Singapore. Mount 

 OpJiir. W. G. 



The Root is fibrous. Stem ascending at the base, be- 

 coming erect, and supporting itself on the neighbouring 

 trees ; the young parts covered with a deciduous tomentum 

 or down. The leaves are alternate, petiolate, the lower 

 ones crowded and lanceolate, the upper ones more remote 



