PITCHER-PLANTS. 



examined two different classes of glands. Had they 

 both really seen the same glands, it is difficult to 

 conceive how they could have arrived at such oppo- 

 site conclusions. From analogy, as well as probability, 

 the presumption is certainly most strongly in favour 

 of glands at the orifice secreting a sweet, attractive, 

 rather than a digestive fluid. 



The form of the glands in the 

 pitchers has been detailed by Mr. 

 Gilburt, as seen in one species, and 

 this applies pretty generally to all. 

 "All the glands we have hitherto 

 treated of," he writes, " are imbedded ; 

 these project entirely above the sur- 

 face. They are also over-arched by 

 a canopy crescentic in form, and have 

 each of them direct communication 

 with a twig of the vascular system. 

 The arrangement of the position of 

 these glands is quite irregular and 

 unsymmetrical. The canopies, or 

 hoods, however, of those nearest the 



mouth of the pitcher cover the Fi S- 1 3-— Section 

 , , , , , ,, , , of hood of Nepenthes 



glands more completely than do those CMso „i {G m urt ). 



lower down, while at the base the 



glands are wholly exposed. The figure shows the 



relation of hood to gland about midway between the 



two extremes." 



