CRUDE DRUGS. 



507 



nodes annulate from remains of bud-scales, upper part marked 

 with large circular, depressed stem-scars and sometimes with buds ; 

 numerous root-scars at and near the lower portion of the nodes; 





Fig. 223. Transverse section of podophyllum rhizome: E, epidermis; P, parenchyma 

 containing starch; S, sieve; C, cambium; T, tracheae. 



fracture short ; internally lemon-yellow, bark i mm. thick, wood 

 yellowish, 0.5 mm. thick, pith large, white; odor slight; taste 

 somewhat bitter and acrid. 



