Benzoin oil is a common tropical resin
For a list of tropical oils/resins used in aromatherapy click on
the link below
Elemi - Elemi \El"e*mi\, n. [Cf. F. ['e]lemi, It. elemi, Sp.
elemi; of American or Oriental. origin.] A fragrant gum resin
obtained chiefly from tropical trees of the genera Amyris and
Canarium. Amyris elemifera yields Mexican elemi; Canarium commune,
the Manila elemi. It is used in the manufacture of varnishes, also
in ointments and plasters. [1913 Webster]