IPECAC 



643 



B 



FIG. 285. Ipecac: A, transverse section of Rio ipecac showing outer layers of 

 cork (a); cork cells (6); phellogen (m); parenchyma containing starch (p); 

 raphides (x); cambium (c); tracheids (t). B, longitudinal -section of a 

 portion of the wood showing tracheal-like tracheids (a); tracheids with 

 bordered pores (6), linear pores (c) and oblique linear pores (d); transition 

 tracheids (e); tracheids with delicate pores (/). C, starch grains of Rio 

 ipecac. D, slightly larger starch grains of Cartagena ipecac. After Schneider. 



