135 



eluded in the bud, one will never find any trace of a collar. 

 As shown in Bower's (1) and Hooker's (7) figures, the margin 

 is here of a smooth, chubby shape all around the pitcher orifice. 

 In young stages it is erect, in older a little more inclined towards 

 the middle-keel of the lid. 



Fig. 1 (iV. Mastersiana) 

 shows a section through 

 the lid and margin of a 

 young pitcher, which has 

 recently left the bud. From 

 this it will be seen that 

 the development of the col- 

 lar, as w^ell as that of the 

 glands, from the pitcher 

 cavity etc., takes place en- 

 tirely outside the bud. At 

 c is seen a sharp furrow, 

 in which the border of the 

 lid is pressed. The sweUing 

 beneath this point is, as 

 mentioned above, supposed 

 to be the first stage of the 

 outer part of the collar 

 (Mac far lane (13). 1908). 

 The other characters of this 

 stage are: The outer sur- 

 face of the pitcher and lid 

 is covered with long, bran- 





ïïPiM^ 



'^%^0r7<- 



Fig. 1. X. Mastersiana. This section, as well 

 as the following (Fig. :2 — 7), are vertical through 

 the lid and parallel with the corrugations of 

 the collar. The young pitcher has recently 

 left the bud. The letters of the figures 1 — 7 

 have the same meaning throughout: ha = 

 hadrome: pi = plerome; sp =^ spiral cells; 

 a == the outer border of the collar; h = the 

 ched hairs; peltate hairs inner border of the same, later on furnished 



do not exist heie. On the 1'^ T^^'^ ^^^^ t-^ '^' ^r"'"', '" 



which the border of the lid is pressed : a —b = 



other hand, they are abund- the corrugated surface: st = stomata: mg = 

 ant on the part a—c, where marginal glands, 



they are mingled with the 



long, branched ones. The same is the case on the part of the 

 inner side of the lid turning towards a — c. On the other part of 

 the inner lid-surface peltate hairs are seen here and there, and 

 somewhat dispersed also stomata, lifted by little swelUngs above the 

 surrounding level (Fig. 15—16). As far as I know, it has not 

 been mentioned before that stomata exist here^); on the contrary 



*) Se the note on page 147. 



