MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



175 



portiori of the leaf, which was five times the normal. This elongation 

 also extends upward into the basal portion of the cavity of the pitcher 

 which in the region below the detentive hairs was ten times the normal. 

 The region covered by the detentive hairs was 1.4 times that of the 

 normal. Above this the etiolated conductive surfaces was only one 

 eighth of the normal and the attractive honey-bearing region had dis- 

 appeared. The lateral flap of the normal was nine times as long and 



Fig. 135. Epidermal structures of etiolated leaf of Sarracenia purpurea. A, 

 from terminal flap. B. "attractive" surface. C, from "conducting"' surface. D, 

 from " detentive" region. E, inner surface of cavity of ascidium. (After Stewart.) 



sixteen times as wide as the etiolated. The relative lengths of the 

 various regions are shown in Fig. 136. 



The epidermal cells of the external surface of the upper part of 

 the leaves ranged from 10 to 22 in length in the normal and from 25 

 to 63 in the etiolated. The width in the two instances ranged from 7 

 to 20 in the normal and from 3 to 5 in the etiolated. Not all of the 

 stomata were differentiated. 



