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Singh, K.P. 1978. Lichen genus Echinoplaca Fee from India. Geophytology 8: 129-130.
Singh, K.P. 1978. Two Parmelia (lichens) new to India. Bulletin of the Botanical Survey of India 20: 173.
Singh, K.P. 1979. Lichen genus Asterothyrium Mull. Arg. in India. Current Science 48: 267-268.
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Singh, K.P. 1980. Awasthiella , a new lichen genus from Mainpur, India. Norwegian Journal of Botany 27: 33-35.
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Singh, K.P. 1983. Catillaria manipurensis - a new species of lichen and a note on Lopadium austroindicum from India. Current Science 52: 165-166.
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Singh, K.P. Singh, S.R. 1982. Two new species of lichen genus Buellia from India. Geophytology 12: 128-129.
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Singh, K.P., Sinha, G.P. and Bujarbarua, P. 2004. Endemic lichens of India. Geophytology 33(1-2): 1-16.
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Singh, S.R. & Awasthi, D.D. 1981. The lichen genus Buellia in India. Biological Memoirs 6: 169-196.
Singh, S.R. & Awasthi, D.D. 1989. Lichen genus Diplotomma from India and Nepal. Geophytology 19(2): 173-181.
Singh, S.R. 1977. A note on some macrolichen taxa from Pachmarhi, Madhya Pradesh, India. Geophytology 7: 123-125.
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Srivastava, R., Yadav, V., Upreti, D.K. & Nayaka, S. 2003. An enumeration of lichens from Shimla district, Himachal Pradesh. Geophytology 33 (1-2): 29-34.
Upreti, D.K. & Aptroot, A. 1996. Lithothelium himalayense , a new pyrenocarpous lichen species from India. Lichenologist 28(1): 89-91.
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Upreti, D.K. & Chatterjee, S. 1997. Notes on some Indian species of Lecanora s. str. with a dark hypothecuim. Feddes Repertorium 108(7-8): 575-582.
Upreti, D.K. & Chatterjee, S. 1998. Lichen genus Lecanora subgenus Placodium in India. Feddes Repertorium 109(3-4): 279-789.
Upreti, D.K. & Chatterjee, S. 1999. A Preliminary survey of Lichens from Corbett National Park. Journal of the Bombay Natural History Society 96(1): 88-92.
Upreti, D.K. & Chatterjee, S. 1999. Distribution of lichens on Quercus and Pinus trees in Pithoragarh district, Kumaon Himalayas-India. Tropical Ecology 40(1): 41-49.
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Upreti, D.K. & Chatterjee, S. 2002. Lichen genus Porpidia in India. Geophytology 30 (1&2): 99-101.
Upreti, D.K. & Chatterjee, S. 2002. The lichen genus Aspicilia in India. Phytotaxonomy 2: 1-10.
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Upreti, D.K. & Ranjan, M. 1988. A note on some macrolichens from Thimphu district Bhutan. Journal of Recent Advances in Applied Sciences 3(1): 426-432.
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Upreti, D.K. & Singh, A. 1987. A new species of Porina from the Andaman Islands, India. Botanical Journal of the Linnean Society 94: 399-402.
Upreti, D.K. & Singh, A. 1987. Lichen genus Laurera from the Indian subcontinent. Bulletin du Jardin Botanique National de Belgique 57(3.4): 367-383.
Upreti, D.K. & Singh, A. 1987. Lichen genus Parathelium from India. Journal of Economic and Taxonomic Botany 10(1): 236-237.
Upreti, D.K. & Singh, A. 1987. Nomenclatural notes on three taxa of pyrenocarpous lichens. Bulletin de la Societe Botanique de France, Lettres Botaniques 134(3): 293-297.
Upreti, D.K. & Singh, A. 1987. Opegrapha bengalensis , a new lichen species from India with comments on the taxonomic status of Sclerographa sensu Zahlbruckner. Beitrage zur Biologie der Pflanzen 62: 233-237.
Upreti, D.K. & Singh, A. 1987. The lichen genus Opegrapha from Andaman Islands, India. Cryptogamie, Bryologie et Lichenologie 8(4): 291-300.
Upreti, D.K. & Singh, A. 1987. Two brown-spored species of the lichen genus Polyblastiopsis . Brunonia 10: 225-229.
Upreti, D.K. & Singh, A. 1988. Lichen family Collemataceae from Andaman Islands, India. Jornal of Bombay National History Society 85(1): 234-237.
Upreti, D.K. & Singh, A. 1988. Revision of the lichen genus Pyrenula from Sri Lanka. Geophytology 18(1): 67-77.
Upreti, D.K. & Singh, A. 1988. The lichen genus Parmentaria from India subcontinent. Candolea 43(1): 109-121.
Upreti, D.K. & Singh, A. 1988. Two new species of Anthracotheciun from Angola. Feddes Repertorium 99(3-4) 151-152.
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Upreti, D.K. 1985. Studies on the lichen genus Baeomyces from India. Geophytology 15(2): 159-163.
Upreti, D.K. 1985. The lichen genus Cladia from India and Nepal. Journal of Economic and Taxonomic Botany 7(3): 722-724.
Upreti, D.K. 1987. Key to the species of Cladonia from India and Nepal. Feddes Repertorium 98(7-8): 469-473.
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