PLATE a 
A. —Tangential section of cambium of fleshy root. 
B. —Radial section through cortex and primary cambium. Notice the abundance 
of starch in the cells of the cortex. 
C. —Cross section through the primary cambium of a mature fleshy root. Notice 
the formation of a new, partial cambium below the group of xylem cells. 
D. —Longitudinal section of the periderm of a young fleshy root. 
