SIDE-SADDLE FLOWERS. 97 



orange-red, flabby, two-lobed organ hangs from the 

 end of the hood, right in front of the entrance, which, 

 according to Professor Asa Gray, is smeared with 

 honey on its inner surface. These pitchers are 

 crammed with large insects, especially moths, which 

 decompose in them, and result in a putrid mass." 1 

 It is a curious fact that the change from the slender, 

 opened - mouthed, to the inflated, close - mouthed 

 pitchers, is absolutely sudden in each individual plant. 

 No intermediate stages are to be found, so that the 

 young pitchers almost represent those Sarracenias 

 which have open mouths and erect lids, and the 

 mature pitchers represent those other Sarracenias 

 which have closed mouths and globose lids. 



The minute structure of the pitchers corresponds 

 in some respects, but differs in others from that of 

 Sarracenia. According to Mr. Gilburt, the inner 

 surface of the pitcher is divided into two zones : the 

 upper one is furnished with short, thick, spike-like 

 trichomes, comparatively wide apart, while the lower 

 one has the same kind and arrangement as exists in 

 Sarracenia. " The glands are the simplest in struc- 

 ture of any found in the group. The epidermal cells 

 of the upper zone of the pitchers have the common 

 sinuous line, but scattered among them are a con- 

 siderable number of large spherical cells, one portion 



1 " Gardener's Chronicle," August 29, 1874, p. 260. 

 H 



