SELECTED READING Books on Lichens •Ahmadjian, V 1993: The Lichen Symbiosis. - John Wiley & Sons, Inc., New York. 250 pp. •Awasthi, D.D. 2000, A Handbook of lichens, Bishen Singh Mahendra Pal Singh, Dehra Dun, India, p. 157. •Galun, M. (ed.) 2000: CRC Handbook of Lichenology, Vol, I, II and III, CRC Press, Inc. Boca Raton, Florida. •Hale, M.E. 1983, The biology of lichens (3rd ed.). Edward Arnold, Australia, pp 1-190. •Hawksworth, D.L. 1974, Mycologist’s handbook. Commonwealth Mycological Institute, England. pp 1-231. •Mukerji, K.G., Chamola, B.P., Upreti, D.K. and Rajeev K. Upadhyay (eds) 1999, Biology of Lichens, Aravali, New Delhi, p. 419. •Huneck, S. and Yoshimura, I. 1996, Identification of Lichen Substances. Springer, Tokyo, pp 1-493. •Nimis, P.L., Scheidegger, C. and Wolseley, P.A. (eds.) (2002), Monitoring with Lichens – Monitoring Lichens, Nato Science Series, Earth and Environmental Sciences-Vol. 7, Kluwer Academic Publishers. •Richardson, D.H.S. 1992, Pollution monitoring with lichens. Richmond Publishing Co. Ltd. England. Manual on Lichens •Culberson, CF 1969: Chemical and Botanical Guide to Lichen Products. - University of North Carolina Press, Chapel Hill. xi + 628 pp. •Kranner, I., Beckett, R.P. and Varma, A.K. 2002: Protocols in Lichenology. Culturing, Biochemistry, Ecophysiology and Use in Biomonitoring. Springer-Verlag, Berlin, Heidelberg, pp. 1-570. •Orange, A., James, P.W. and White, F.J. 2001: Microchemical Methods for the Identification of Lichens. - British Lichen Society. 101 pp. •White, FJ and James, PW 1985: A new guide to microchemical techniques for the identification of lichen substances. - British Lichen Society Bulletin 57 (supplement): 1-41. Identification Key to Lichens •Awasthi, DD 1988: A key to the macrolichens of India and Nepal. - Journal of the Hattori Botanical Laboratory 65: 207-302. •Awasthi, DD 1991: A key to the Microlichens of India, Nepal and Sri Lanka. - Bibliotheca Lichenologica, Bd. 40, J. Cramer, Berlin, Stuttgart. 340 pp. •Divakar, P.K., Upreti, D.K. and Chatterjee, S. 2000: A key to species of the lichen genus Parmelia sensu lato in the Indian subcontinent. - Geophytology 30(1-2): 1-16. •Upreti D.K. and Sanjeeva Nayaka 2004, A Field Guide to the Common Lichens : Of Corbett Tiger Reserve, Bishen Singh Mahendra Pal Singh, Dehra Dun, p. 41. Papers published on lichens of Tamil Nadu •Balaji P. and G.N. Hariharan 2005: Annonated checklist of the lichens of Chennai, Tamil Nadu, India. - Phytotaxonomy 5: 1-7. •Balaji P. and G.N. Hariharan 2007: In vitro Antimicrobial Activity of Parmotrema praesorediosum Thallus Extracts. - Research Journal of Botany 2(1): 54-59. •Balaji P., Malarvannan, S. and G.N. Hariharan 2007: Efficacy of Roccella montagnei Extracts on Helicoverpa armigera (Lepidoptera: Noctuidae). - Journal of Entomology 4(3): 248-252. •Balaji, P., P. Bharath, R. Valarmathi, Trupti Mohapatra and G.N. Hariharan 2006: Lichen Bioprospecting - Future Prospects. - Journal of Swamy Botanical Club 23: 81-90. •Balaji, P., P. Bharath, R.S. Satyan and G.N. Hariharan 2006: In vitro antimicrobial activity of Roccella montagnei thallus extracts. - Journal of Tropical Medicinal Plants Vol.7 No.2: 1531-1539. •Balaji, P. and Hariharan, G.N. 2004: Lichen diversity and its distribution pattern in tropical dry evergreen forest of Guindy National Park (GNP), Chennai. - Indian Forester 130(10): 1155-1168. •Hariharan G.N. and Balaji, P. 2005, Use of Lichens in Bird Nest Construction: Observations from Bolampatti Range, Tamil Nadu, Western Ghats. - Journal of the Bombay Natural History Society 102(1): 121-122. •Hariharan, G. N., Krishnamurthy, K.V. and Upreti, D. K. 2003: Lichens of Shevaroy Hills of Eastern Ghats, India. - Phytotaxonomy 3: 1-23. •Hariharan, G.N., Mibey, R.K. and Hawksworth, D.L. 1996, A new species of Lichenopeltella on Porina in India. - Lichenologist 28(3): 294-296. •Nayaka, S., Upreti, D.K. and Divakar, P.K. 2001: Distribution and diversity of lichens in Meghamalai Wildlife Sanctuary, Kambam District, Tamil Nadu, India. - Biological Memoirs 27(2): 51-58..