“…In the essential oil obtained from the leaves, some authors found a dominance of monoterpene hydrocarbons [12][13][14][15][16][17]. In particular, the main constituents of the most studied species, P. lentiscus, were a-pinene (Greece and France) [16][17][18], myrcene (Spain and Sicily) [12,16], d-carene (Egypt) [14], and terpinen-4-ol, a-pinene, limonene, and myrcene (Corsica) [17]. According to their intraspecific variability, the essential oil of P. lentiscus can be classified into three groups on the basis of their content of terpinen-4-ol, a-pinene, limonene, and myrcene.…”