Il6 FREAKS OF PLANT LIFE. 



examined. 1 The thimble - shaped pitchers are sur- 

 mounted by a lid, which is elevated, so that the 

 entrance to the pitchers is open and free. We are 

 not concerned with the external structure, which is 

 fully detailed in the memoir by Professor Dickson. 



The mouth of the pitcher 

 is furnished with a cor- 

 rugated rim which ends 

 abruptly on the inner mar- 

 gin in a row of inflexed 

 teeth, extending along the 

 front of the orifice to the 

 base of the lid (see section, 

 fig. 15). Below the rim is 

 a ledge extending round 

 the inside of the pitcher, 



with its acute edge pro- 

 Fig. 15.— Section of pitcher of ... , . ,. 



Cephalotus. jectingdownwards into the 



cavity, forming a kind of 



contracted neck. This is called the conducting-shelf. 



Below this, again, the upper two-thirds of the walls 



are smooth and glandular. At the lower margin of 



this smooth surface an oblique curved elevation 



■ J By Professor Dickson in the "Journal of Botany," for 

 January, 1878, vol. vii., p. 1. Confirmed by Mr. W. H. Gilburt 

 in "Journal of Quekett Microscopical Club," November, 1880, 

 vol. vi., p. 159 ; and by Dr. Lawson Tait in " Midland! 

 Naturalist." 



