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PHARMACEUTICAL BOTANY 
Official drug 
Myrrha 
Unofficial 
Olibanum 
Part used Botanical origin Habitat 
Gum resin Commiphora species East Africa and 
Arabia 
Gum resin 
Boswellia carterii East Africa and 
Arabia 
Fig. 165 . — Picrasma excelsa — Branch. {Sayre.) 
Meliacece or Mahogany Family . — Tropical trees or shrubs with 
wood often hard, colored and odoriferous. Leaves alternate, ex- 
