544 PHARMACEUTICAL BOTANY 
OrriciAL DruG Part Usep BoTANICAL ORIGIN HABITAT 
Cocaina Alkaloid Erythroxylon Coca }/ Peru and Bolivia, 
Cocainze Hydrochloride of js other species of South America 
Hydrochloridum alkaloid Erythroxylon 
UnorFictiAL DruG 
Coca Leaves Erythroxylon Coca Peru and Bolivia 
and E. truxillense 
ZYGOPHYLLACEZ OR CALTRoP Famity.—Herbs, shrubs, or 
trees (Guajacum or Guaiac) having jointed, often divaricate 
Fic. 413.—Citrus Aurantium, the bitter or Curacao orange, a small tree bearing 
evergreen leaves with winged petioles, white flowers and a spherical fruit with 
bitter, acid pulp. The source of bitter orange peel and volatile oils of the peel and 
flowers. (Sayre.) 
branches. Leaves usually opposite, stipulate and compound. 
Flowers regular or irregular, pentamerous, white, yellow, red or 
blue (G. officinale). Fruit a capsule. 
OrrictAL Druc PART Usrep 
BoTANICAL ORIGIN HABITAT 
Guaiacum Resin of wood aie officinale oe Indies and S. 
America 
Guajacum sanctum 
