462 SCIENTIFIC AND APPLIED PHARMACOGNOSY 



FIG. 200. Transverse section of granatum: K, corky layer composed of thin- 

 walled cork cells (A; 1 ) and thick-walled cork cells (k) only the inner walls (v) 

 of which are thickened; Pd, phelloderm cells; pr, a few parenchyma cells 

 of the primary cortex; Sk, stone cells with thick, lamellated walls and 

 fine branching pores; 0, rosette aggregates of calcium oxalate; O l , mono- 

 clinic prisms of calcium oxalate; TO', medullary rays; s, sieve cells; s, sieve 

 cells; p, parenchyma cells; c, cambium. After Meyer. 



