Appendix E. A figure comparing volatiles collected through solvent extraction or from headspace of 200-mg air-dried leaf material of three different origins. Inderjit EvansHeather CrocollChristoph BajpaiDevika KaurRajwant FengYu-Long SilvaCarlos CarreónJacinto Treviño Valiente-BanuetAlfonso GershenzonJonathan M. CallawayRagan 2016 A figure comparing volatiles collected through solvent extraction or from headspace of 200-mg air-dried leaf material of three different origins.