“…In two samples out of four (Nos 10 and 11, collected from the same place) rather high concentrations of germacrene D with α-muurolene, limonene with 1,8-cineole (samples 5, 10, and 12), and trans-β-caryophyllene (samples 10 and 11) and less trans-dihydrocarvone (samples 5 and 12) and piperitone (samples 10 and 11) were found. Other authors identified the mentofuran-rich (Viljoen et al, 2006), piperitone oxide-rich (Hussain et al, 2010a), cispiperitone oxide and piperitenone oxide-rich (Viljoen et al, 2006;Singh et al, 2008;Kakhky et al, 2009), menthone-rich (Asekun et al, 2007), menthone, menthol, and pulegone-rich (Hajlaoui et al, 2008), pulegone-rich (Mkaddem et al, 2009), carvone and limonene-rich, piperitenone oxide and 1,8-cineole-rich (Koliopoulos et al, 2010) chemotypes of M. longifolia. The oils of M. spicata contained much more myrcene (2.3-5.5%) than M. longifolia (0.6-0.9%).…”