The Collaborative International Dictionary of English v.0.48:

Styrax \Sty"rax\, n. [L. styrax, storax, Gr. ?. See Storax.]
   1. (Bot.) A genus of shrubs and trees, mostly American or
      Asiatic, abounding in resinous and aromatic substances.
      Styrax officinalis yields storax, and Styrax Benzoin
      yields benzoin.
      [1913 Webster]

   2. Same as Storax.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Benzoin \Ben*zoin"\ (b[e^]n*zoin"), n. [Cf. F. benjoin, Sp.
   benjui, Pg. beijoin; all fr. Ar. lub[=a]n-j[=a]w[imac]
   incense form Sumatra (named Java in Arabic), the first
   syllable being lost. Cf. Benjamin.]

   Note: [Called also benjamin.]
   1. A resinous substance, dry and brittle, obtained from the
      Styrax benzoin, a tree of Sumatra, Java, etc., having a
      fragrant odor, and slightly aromatic taste. It is used in
      the preparation of benzoic acid, in medicine, and as a
      perfume.
      [1913 Webster]

   2. A white crystalline substance, C14H12O2, obtained from
      benzoic aldehyde and some other sources.
      [1913 Webster]

   3. (Bot.) The spicebush (Lindera benzoin).
      [1913 Webster]

   Flowers of benzoin, benzoic acid. See under Benzoic.
      [1913 Webster]