TERPENOIDS AND STEROIDS 



129 



TABLE 5. MONOCYCLIC SESQUITERPENOIDS. 

 STRUCTURES AND OCCURRENCE 



y-bisabolene (widely distributed) 



zingiberene (Zingiber officinale) 



lanceol (Santalum lanceolatum) 



ar-turmerone (Curcuma longa) 



perezone (Trixis pipitzahuac) 



