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Dr. D.K. Upreti is scientist ELL at Lichenology laboratory, National Botanical Research Institute, Lucknow. He did M.Sc. in botany and Ph.D. in Liochenology under the supervision of Dr. D.D. Awasthi. He has 20 years research experience in the field of Lichenology and published more than 150 research papers in different internatinal and national journals. He had been to Antarctica in 1991-92 and worked on the lichens of Schimacher Oasis, East Antarctica together with their metal, carotenoids and pollen analysis. He also worked on different aspects of lichenology including lichens of Indian monuments and historical buildings, ethnolichenology, lichens as indicator of atmospheric pollution, antibiotic properties of lichens together with floristic, revisioinary and monographic studies of Indian lichens. He is the corresponding member of British Lichen Society for India. He is member of a number of scientifc societies.

Mr. Sanjeeva Nayaka is scieitist B at Lichenology laboratory, National Botanical Research Institute, Lucknow. He has recently started carrier in Lichenology and interested in the ecology and natural history of lichens. He has gained expereicne of conducting ecological studies in various forest types of Western Ghats at Centre for Ecoloigical Sciences, Indian Institute of Science, Bangalore under Prof. Madhav Gadgil. He has published more than 15 research papers in Lichenology. He is currently engaged in studying Antartic lichen and their ecology.