The collected plant specimens were identified with help of literature (Hooker 1872–97; Prain, 1963; Grierson and Long, 1987; Polunin and Stainton, 1984; Anonymous, 2016) and herbarium (CAL). The ecological data was computed for frequency (dispersion of species in a community), density (the number of individuals per unit area), abundance (the number of individuals per sampling unit of occurrence) and basal area (the area actually occupied by the stem near the ground surface) following Misra (1968) and Mueller-Dombois and Ellenberge (1974).