Auto exhaust pollution serve as the major driver of the deteriorating air quality in Rewa city. This study aims to investigate the effects of auto exhaust pollution on foliar morphological structure of road side ornamental shrub species, Bougainvillea spectabilis. Increased number of stomata and epidermal cells per unit area in leaf samples of Bougainvillea spectabilis collected from polluted sites than those from control sites is observed by light microscopic technique. Analysis of data revealed that, as compared to the leaves from control, the length and width of guard cells and epidermal cells reduced significantly in leaves of polluted sites. These changes in foliar morphological structures could be as indicator of auto exhaust pollution or environmental stress.
