GCMS analysis of floral headspace volatiles. (A) Major constituents of D. wrightii floral headspace scent shown in the total ion chromatogram are monoterpenoids â-myrcene (1), E-â-ocimene (3), and geraniol (5), aromatics including benzyl alcohol (2) and methyl salicylate (4), and sesquiterpenoids such as á-farnasene (6).  (B) Major constituents of A. palmeri floral odor shown in the total ion chromatogram are monoterpenoids á-pinene (9), camphene (10), â-pinene (11) and limonene (13), aromatics including xylene (8), and esters such as ethyl isovalerate and analogs (7, 12) and ethyl sorbate isomers (14 and 15).