332 POWDERED VEGETABLE DRUGS 



86. (Fig. 92.) EUCALYPTUS. Eucalyptus Leaves. U. S. 

 Fl. ex. 40. Tinct. 30. 



Eukalyptusblatter, G. Feuilles d'eucalyptus, Fr. 



The older (sickle-shaped) leaves of Eucalyptus globulus Lab., 

 Myrtaceae. 



Bright green. 



Aromatic, camphoraceous. 



Pungent, bitter, somewhat astringent. 



Epidermal cells (upper and lower) polygonal, rather thick-walled; 

 stomata on both surfaces but guard cells not visible because of the 

 enormously thickened cuticle. Some sclerenchyma cells and scleren- 

 chymatous fibers from petiole. Prismatic and aggregate crystals 

 quite numerous. 



Ash 6.5 per cent. 



Adulterated with leaves of allied plants. The leaves from the 

 young plant are dorsiventral, stomata on lower surface only and 

 guard cells visible because the cuticle is much thinner. 



