International Journal of Scientific Research in ______________________________ Research Paper . Biological Sciences Vol.6, Issue.1, pp.97-104, February (2019) E-ISSN: 2347-7520 DOI: https://doi.org/10.26438/ijsrbs/v6i1.97104 Diversity of Lichens along Elevational Gradients in Forest Ranges of Chamarajanagar District, Karnataka State S. Rashmi1, H. G. Rajkumar2* 1 PG Department of Botany, JSS college of Arts, Commerce and Science, Ooty road, Mysore, Karnataka, India 2 Department of studies in Botany, Manasagangotri, University of Mysore, Mysore 570 006, Karnataka, India *Corresponding Author:
[email protected] Telephone No.: +91-821-2419757, 2419758, Available online at: www.isroset.org Received: 01/Feb/2019, Accepted: 14/Feb/2019, Online: 28/Feb/2019 Abstract— The lichen species richness in Chamarajanagar district in Karnataka, India were assessed using altitudinal gradient, in order to compare distribution patterns of different growth forms, dominant families and diversity index. Four major forest ranges, Biligiriranga Hills, Himavad Gopalaswamy Hills, Malay Mahadeshwara Hills, and Shivanasamudra Falls were surveyed and a total of 97 lichens, belonging to 47 genera and 25 families were recorded. Physciaceae was found to be dominant family by 18 species under 8 genera, followed by Parmeliaceae with 16 species under 4 genera. Crustose type was dominated with 51%, followed by foliose type with 38%. Malay Mahadeshwara hills had highest lichen species richness and harboured 67 species, of which, 36 species were crustose type and 28 species were foliose type. Shannon-weiner index ranged from 3.85- 2.45 and Simpson index of diversity ranged from 0.02-0.09. Luxuriant growth of lichens was recorded at the altitude of mid elevation with degree of abundance, density, frequency and distribution of the lichen species compared to other elevation.