12 BOTANICAL GAZETTE [JuLY 
has been very carefully studied by Meunier, and I will therefore 
give only a brief account of their mature structure. The brown 
walled cells of the epidermis are prismatic in shape, varying in 
height from one-half to three or four times their diameter, the 
highest being those at the base of the capsule near the ventral 
side (fig. 33). Inthe basal pit the epidermis is made up of 
several layers of irregular thin-walled cells (figs. 32, 33), while 
just above this on the wall of the capsule it consists of a single 
layer of very short cells (fig. 33). On either side of this nar- 
row pit the epidermal cells are quite high, as was shown by 
Meunier, but, though this author figures transverse sections of 
this region of the capsule, he does not appear to have discovered 
the pit in longitudinal sections, and hence apparently failed to 
appreciate its significance. Scattered about among the epider- 
mal cells of the ripe capsule are many of the persistent basal 
cells of the deciduous trichomes (fc, fig. 33). 
The outer hypodermal layer consists of cells with the clear 
manner as the outer hypodermis of the capsule (fig. 33), and 
