CRUDE DRUGS. 599 



pilocarpidine has been isolated from the leaves of P. pinnatif alius 

 in the form of an amorphous substance called jaborine, and 

 resembling atropin in its physiological properties. Recent inves- 

 tigations do not seem to show that these alkaloids occur in either 

 the leaves of Paraguay or Maranham Jaborandi. Fresh pilocarpus 

 leaves also yield 0.2 to i.i per cent, of a volatile oil which con- 

 tains a hydrocarbon pilocarpene and a stearoptene belonging to 

 the olefine series. 



Allied Drugs. — Nearly all of the species of Pilocarpus con- 

 tain some pilocarpine, as well as other principles which are found 

 in the official leaves. Many of these find their way into commerce 

 and in some instances their assays compare favorably with the 

 official leaves. Aracati Jaborandi is obtained from P.spicatus, 

 the leaflets being broad and coriaceous and said to contain 0.16 

 per cent, of alkaloids. The leaflets of P. racemosus of the West 

 Indies are large and membranous and contain about .66 per cent, 

 of pilocarpine. 



EUCALYPTUS. — The leaves of Eucalyptus Globulus (Fam. 

 Myrtacese), a tree (Fig. 258) indigenous to Eastern Australia 

 and Tasmania, and cultivated in Southern Europe, California 

 and the Southern United States (p. 346). The leaves are col- 

 lected from older parts of the tree and dried, the principal part 

 of the commercial supply coming from the south of France. 



Description. — Bilateral, lanceolate, scythe-shaped, 15 to 30 

 cm. long, 2.5 to 5 cm. broad; apex acuminate; base somewhat 

 imequal, acute ; margin entire, revolute ; surface light green, glab- 

 rous, with numerous small, circular, reddish-brown depressions 

 or projections in the neighborhood of the stomata and veins, con- 

 sisting of cork cells ^ ; midrib usually with a small groove on one 

 side; veins of the first order diverging at an angle of about 55°, 

 running to within i mm. of the edge, where they anastomose, 

 forming a vein parallel with the margin; petiole 2 to 3 cm. long, 

 flattened and somewhat twisted; pellucid punctate; texture cori- 

 aceous; odor slightly aromatic; taste aromatic, somewhat bitter 

 and cooling. 



' These corky patches appear to be due to an irritation cause'd by- 

 some of the constituents. 



