MORPHOLOGY OF HIGHER PLANTS. 



339 



FIG. 194. Dicotyledonous stem structure. Transverse section through menispermum 

 rhizome: E, epidermis; K, sub-epidermal cork; C, cortex; B, bast fibers; S, sieve; ST, 

 stone cells; CA, cambium; T, vessels; W, wood fibers; M, medullary ray cells; P, pith. 



