260 STRUCTURE OF LATHRASA SQUAMARIA. 
Nt 
out in the form of very fine filamentous prolongations, giving the 
an a velvety appearance. This form is most abundant, and 
recalling to mind a section of the human eye; one half sunk in the 
substance of the leaf, the remainder projecting into the cavity ; the 
head of th onding to the cornea of the eye, consists 
of four long narrow cells in one plane, containing granular ~ 
continuous border, owing to the large basal cell becoming narrower 
d , and which must be 
or 
bracts, and is very rare in the cavities, usually not more than two 
three being m leaf. 
. Under lying the epidermis of the cavities is a thin wall of tissue, 
remainder of the leaf consists of very la i lls 
joint : y large hexagonal cells, 
_ ‘Containing starch grains and erystalloids. The veins, which are 
ve id ag and well developed, are sunk in the substance of the leaf, 
and rm loops which surround the cavities, running between the 
