440 POWDERED VEGETABLE DRUGS 



151. (Fig. 149.) PILOCARPUS. Pilocarpus. U. S. 

 Fl. ex. 30. 



Pernambuco jaborandi, jaborandi, E. Jaborandi, G., Fr. 



The leaflets of Pilocarpus Jaborandi Holmes (Pernambuco jabor- 

 andi), and P. microphyllus Stapf (Rio jaborandi), Rutacese. 



Light yellowish brown; lemon tinge. 



Slightly aromatic and fragrant. 



Somewhat bitter and pungent. 



Epidermal cells polygonal, rather thick-walled, cuticle thick with 

 linear markings. Stomata on lower surface only, surrounded by 

 three to five arched neighboring cells. Simple single celled, slender 

 trichomes sparingly present. Leaf parenchyma with aggregate 

 crystals of calcium oxalate. Some sclerenchyma cells and sclerchyma- 

 tous tracheids. P. microphyllus contains resin bearing neighboring 

 cells. 



Ash 6 per cent. 



Adulterated with leaflets of related species. Pilocarpus Selloanus; 

 epidermal cells a third smaller. P. pennatifolius (Paraguy jaborandi), 

 and P. spicatus (Aracati jaborandi), with numerous brown resin bear- 

 ing leaf parenchyma cells and small granules and resin in epidermal 

 cells. P. trachylophus (Ceara jaborandi) with curved sickle shaped 

 trichomes. 



