208 



BOTANY AND PHARMACOGNOSY. 



Fig. IIS. Dicotyledonous stfem structure. Transverse section through menisptirmum 

 rhizome: E, epidermis, which is being replaced by cork (K); C, cortex; B, bast fibers; S, 

 sieve; ST, stone cells; CA, cambium; T, ducts; W, wood fibers; M, medullary-ray' cells: 

 P, pith. 



