360 THE CANADIAN NATURALIST. [Vol. vii. 



the young ones of one season or the older ones of the previous 

 year. He found, however, that about May it could be detected 

 without diflSculty, and more wonderful still, that there is a 

 honejbaited pathway leading directly from the ground to the 

 mouth, along the broad wing of the pitcher, up which insects are 

 led to their destruction. From these narratives it is evident 

 that there are two very different types of pitcher in Sarraceni;-, 

 and an examination of the species shows that there may probably 

 be three. These may be primarily classified into those with the 

 mouth open and lid erect, and which consequently receive the 

 rain-water in more or less abundance ; and those with the mouth 

 closed by the lid, into which rain can hardly, if at all, find in- 

 gress. 



To the first of these belongs the well-known S. purpurea, with 

 inclined pitchers, and a lid so disposed as to direct all the rain 

 that falls upon it also into the pitcher; also S.Jiava, rubra, and 

 DrummoiuUi, all with erect pitchers and vertical lids ; of these 

 three, the lid in a young state arches over the mouth, and in an 

 old state stands nearly erect, and has the sides so reflected that 

 the rain which falls on its upper surface is guided down the out- 

 side of the back of the pitcher, as if to prevent the flooding of 

 the latter. 



To the second group belong S. psittadna and S. variolaris. 



The tissues of the internal surfaces of the pitchers are singu- 

 larly beautiful. They have been described in one species only 

 the S. purpurea, by August A^ogl ; but from this all the other 

 species which I have examined difi'er materially. Beginning 

 fiom the upper part of the pitcher, there are four surfaces, charac- 

 terised by difi"ereut tissues, which I shall name and define as 

 follows : — 



1. An attractive surface, occupying the inner surface of the 

 lid, which is covered with an epidermis, stomata, and (in com- 

 mon with the mouth of the pitcher) with minute honey^ 

 secreting glands ; it is further often more highly coloured than 

 any other part of the pitcher, in order to attract insects to the 

 honey. 



2. A couihtcfLng surface, which is opa(|ue, formed of glassy 

 cells, which are produced into deflexed, short, conical, spinous 

 processes. The.'^e processes, overlapping like the tile.s of a house, 

 form u surface dovv'n which an insect slips, and affords no foot- 

 hold to an insect attempting to crawl up again. 



