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SHAJI.C. and Patel RT 1988. Treubharia appendiculata (Bernard) nom.nov. from India, Phykos, 27:1-3.
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SHAJI.C. and Patel R.J. 1988. Microthamnion strictissimum Rabenhorst from Kerala. Phykos, 27: 30-3 1.
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SHAJI.C., Jose L and Patel R.J. 1988. Addition to desmid flora of Kerala, Phykos, 27: 32-37.
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SHAJI.C., Jose.L. and Patel R.J. 1989, Contribution to desmid flora of Kerala, India. Nova Hedivigia, 49:169-182.
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JOSE.L. SHAJI.C. and Patel RJ. 1990. Coronastrum lunatum-A new Chlorococcal alga from India. Criplogainie Algologia, 11: 9-12.
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SHAJI-C. and Patel R.J. 1990. Tetraplektron tribulus (Pascher) Fott-A new record from India. Indian Botanical Contactor 7 (4): 175-176.
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SHAJI.C. and Patel R.J. 1990. On some species of Scenedesimus Meyen- new to India. Indian Botanical Contactor, 7(4): 173-174.
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SHAJI. C. and Patel R.J. 1990.Desmids new to Kerala, India Feddes Repertorium 101: 67-76.
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SHAJI.C. and Patel R.J. 1991. Contrubution to desmid flora of Kerala, India-II. Nova Hedwigia, 52:(1-2):197-225.
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SHAJI.C. and Patel R.J. 1990. Genus Lagynion Pascher from Kerala. J. Phytological Research. 3(l): 127-129.
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SHAJT.C. and Patel R.J. 1991. Glaucocystis indica Patel from Kerala. Geobios New Reports: 10(l): 99.
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SHAJI.C. and Patel R.J. 1990. Chemical and Biological assessment of pollution in the river Khari, Gujarat. Indian J. Ecology 17:6-8.
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SHAJI.C. and Patel R.J. 1990. A note on Quadrigula quaternata (W. et G.S
West) Printz. from Kerala. Indian Bot. Reptr., 9(2).
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SHAJI.C. and Patel R.J. 1991. Phytoplankton Species Diversity of Sabarmati River near Ahmedabad, Gujarat, as index of Environmental changes. Annals of Biology, 7-15-20.
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SHAJI-C. and Patel R.J. 1991. On Gloeocystics Naegell from Kerala. J. Phytological Research 4:89-91.
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SHAJI.C. and Patel R.J. 1991. Contribution to Euglenolds of Kerala, India. Phycos 30: 109-114.
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17. SHAJI.C. and Patel R.J. 1991. Chemical and Biological Evaluation of pollutin in the river Sabarmati at Ahmedabad, Gujarat. Phykos, 30:91-100.
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SHAJI.C. and Patel R.J. 1992. Pollution status of a Pond at Anand-Gujarat. Geobios New Reports, 12:52-5 5.
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SHAJI. C. and Panikkar, M.V.N. 1994. Cyanophyceae of Kerala, India. Phykos, 33: 107-113.
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SHAJI.C. and Patel R.J. 1994. Phytoplankton Ecology of a polluted pond at Anand, Gujarat. Annals of Biology, 10: 191-197.
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SHAJI.C. and Patel R.J. 1994, Ecological studies on algae of an effluent canal at Nandesari Industrial AreaGujarat Indian .j. Ecol. 21:1-5
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SHAJI.C. and Patel R.J. 1995. Algal Flora of an effluent canal at Nandesari Industrial area, Gujarat. Geobios New Reports, 14: 45-47.
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SHAJI.C. and Panikkar, M.Y.N. 1995. On some little known Epiphytic algae from Kerala Geobios New Reports 14: 51- 5 2
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SHAJI. C., Sindhu.P.and Panikkar. M.Y.N. 1995. Contribution to Euglenoids of Kerala, India-II J. Econ. Tax.Bot. 19(2): 260-272.
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SHAJI.C. and Panikkar, M.Y.N. 1996, A new species of Aodounella from Kerala, India Feddes Repertorium 107: 159-162.
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SHAJI.C. and Panikkar, M.Y.N. 1996. Cynophyceae of Kerala, India-II. J. Econ-Tax.Bot 20: 429-434.
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Shaji C. 2004. A new variety of Pleurotaenium fi-om Kerala- J. Econ. Tax.Bot. 28(3): 602-603.
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Shaji C. 2006. A new species of Audouinella Bory (Audouinella patelii sp. nova) from kerala , India. Feddes Repert. 117 (3&4), 272-276.