PILOCARPUS 265 



Maranham Jaborandi. It has been adulterated with species of Piper, 

 which are not pellucid-punctate, with Laurus nobilis, etc. 

 DESCRIPTION OF DRUG. Leaves nearly sessile, pinnate, with a terminal 

 leaflet; the leaflets, which come into market separate, are ovate- 

 oblong, entire, about 100 mm. (4 in.) long, and 50 mm. (2 in.) broad; 

 short-petiolate; uneven at the base; slightly revolute at margin, near 

 which the anastomosing veins form one or two distinct wavy lines ; 



FIG. 148. Leaf of Jaborandi as it appears FIG. 149. Ruta graveolens. Portion of plant, 



in the market. 



coriaceous; dull green, finely marked with small, transparent dots 

 or oil-cells, plainly visible when held up to the light; texture coria- 

 ceous, brittle; when bruised a peculiar, rather unpleasant odor is 

 emitted; this odor is predominant in the fluidextract. Taste dis- 

 agreeable, slightly pungent, and bitter. The leaflets of P. micro- 

 phyllus (Maranham Jaborandi) are smaller (2.5 to 4 cm. in length), 

 usually ovate in outline, deeply emarginate at apex. Aklaloidal 

 content (chiefly Pilocarpine) of best leaf ranges from 0.5 to i per cent. 



Powder. Yellowish-brown. Characteristic elements: See Part iv, Chap. I, B. 



