Essential oil compositions and cytotoxic activities of Dendropanax capillaris, Oreopanax nubigenus, and Schefflera rodrigueziana from Monteverde, Costa Rica.

The leaf essential oils of Dendropanax capillaris, Oreopanax nubigenus and Schefflera rodrigueziana (Araliaceae) were isolated by hydrodistillation and analyzed by GC-MS. The leaf oil of Dendropanax capillaris was composed of only four compounds, beta-pinene (25.3%), 6-3-carene (44.