Fragrance components of <i>Platanthera bifolia</i> subsp. <i>osca</i>

<p>SPME-GC-MS analysis of the scent of <i>Platanthera bifolia</i> subsp. <i>osca</i> collected during the night showed as main components lilac alcohols B, C and D and lilac aldehydes A, B and C. Other significant chemical components were linalool and caryophyllene. Some differences were found in comparison with previously reported analyses of the scent of <i>P. bifolia</i> and <i>Platanthera chlorantha</i>. The most important difference found was in the composition of the ester fraction.</p>