Example diurnal pattern of monoterpene, oxygenated monoterpene (MTP), sesquiterpene (SQT), and green leaf volatile emissions (C5 and C6 GLVs) under ambient conditions of light, temperature, and moisture, following leaf detachment at 21 m on the K34 tower. Note that during desiccation and high temperature stress of the C. longipendula leaf in the early afternoon, a strong decline in volatile terpenoid emissions is associated with a rise in GLV emissions. Vertical dotted lines represent the peaks in net photosynthesis and transpiration (coarse dashed line) and peaks in leaf temperature (fine dashed lines).