Scrophulariaceae. 



455 



The structure of the flower is shown in Fig. 34, A — D; 

 as I had only dried piants at my disposal, these drawings 

 are somewhat diagrammatic. 



As in P. Sceptrum carolinum the lower lip is directed 

 upwards, on its inner side (morphological upper side) are 

 two convexities. The maximum distance from the base of 

 the corolla-tube to the tip of the helmet, was 3 cm; the 



Fig. 34. Pedicularis capitata. 

 A, A bud and B a fuUy expanded flower; in B the position of the anthers 

 is indicated. C, Corolla-tube and upper lip cut through the median 

 plane of the flower, the lower lip has been removed. D, Uppermost 

 half of the upper lip, more highly magnified in order to show the vena- 

 tion of the helmet; lowermost in this figure one sees the uppermost 

 parts of the ridge and of the revolute portion of the edge of the upper 

 lip respectively. (Ellesmere Land.) {A, B and C about ^J^; D about Vi-) 



colour of the corolla is yellow. The position of the ridge is 

 shown in Fig. 34, C, and the venation of the helmet in Fig. 

 34, Z); in the latter figure the uppermost part of the ridge 

 is seen, and a little of the narrow revolute portion of the 

 edge of the upper lip (entirely black in the figure). The 

 revolute portion appears as if it were smooth, but, under 

 the microscope, some of its epidermal cells are seen to be 

 furnished with quite small, warty protuberances with cuti- 

 cular striations; such protuberances are also found along the 



