Species richness was observed greater for the herb stratum among all altitudinal ranges followed by shrub and tree stratum. In context of tree species the highest (19) was fond in south facing aspect at lower altitudinal range (700-900m) and lowest (8) was in same aspect at higher altitudinal range (1600-1800m). The diversity of tree, shrub and herb species was varied with the altitudinal ranges. In context of tree layer, the Shannon diversity was recorded maximum (2.85) at upper altitudinal range (1600-1800 m) of south aspect and minimum (1.77) also at upper altitudinal range but in the north facing aspect. . The Margalef diversity was found maximum (6.40) at north facing aspect of upper altitudinal range (1600-1800 m) and minimum (5.02) at middle altitudinal range (1000-1200 m) of north facing aspect.
