Literature Cited

Abraham, A. and C.A. Ninan. 1958. Cytology of Isoetes. Curr. Sci. 27: 60

Bhardwaja, T.N. and C.B. Gena. 1992. Cytological studies of Rajasthan species of Isoetes L. Aspect Plant Sci. 14: 495

Brunton, D.F. and W.C. Taylor. 1990. Isoetes xbrittonii hyb. nov. (Isoetaceae)
DOI: 10.2307/1547173View Article Google Scholar

Chandra, S., C.R. Fraser-Jenkins, A. Kumari and A. Srivastava. 2008. A summary of the status of threatened Pteridophytes of India. Taiwania 53(3): 170
DOI: 10.6165/tai.2008.53(2).170View Article Google Scholar

Chinnock, R.J. 1998. Isoetaceae in Flora of Australia Vol. 48. ABRS/CSIRO Melbourne, Australia pp. 55

Choi, H.K., J. Jung and C. Kim. 2008. Two new species of Isoetes (Isoetaceae) from Jeju Island, South Korea. J. Plant Biol. 51(5): 354
DOI: 10.1007/BF03036138View Article Google Scholar

Cox, P.A. and R.J. Hickey. 1984. Convergent megaspore evolution and Isoetes. Amer. Nat. 124: 437
DOI: 10.1086/284285View Article Google Scholar

Croft, J.R. 1980. A taxonomic revision of Isoetes L. (Isoetaceae) in Papuasia. Blumea 26: 177

Fuches, H.P. 1962. Nomenklatur, taxonomie and systematic der Gattung Isoetes Linneaus in Geschichtlicher Botrachtung Beih. Nova Hedwigia 3: 1

Fuchs-Eckert, H.P. 1981a. Isoetes palmeri H.P. Fuchs, eine neue Isoetes Art des P?ramo. Meded. Bot. Mus. Herb. Rijks. Univ. Utrecht. 510: 165

Fuchs-Eckert, H.P. 1981b. Isoetes cleefii H.P. Fuchs, eine weitere neue Isoetes Art aus demkolumbianischen P?ramo. Proc. Kon. Nederl. Akad. Wetensch. 84(2): 175

Goswami, H.K. 1975. Chromosome studies in natural populations of Isoetes pantii, with heterosporous sporangia. Cytologia 40(3-4): 543
DOI: 10.1508/cytologia.40.543View Article Google Scholar

Grenier, J.C.M. and D.A. Godron. 1855

Hickey, R.J. 1984. Chromosome number of neotropical Isoetes. Amer. Fern J. 74(1): 9
DOI: 10.2307/1547103View Article Google Scholar

Hickey, R.J. 1986a. The early evolutionary and morphological diversity of Isoetes, with description of two new neotropical species. Syst. Bot. 11(2): 309
DOI: 10.2307/2419121View Article Google Scholar

Hickey, R.J. 1986b. Isoetes megaspore surface morphology: nomenclature, variation and systematic importance. Amer. Fern J. 76(1): 1
DOI: 10.2307/1547394View Article Google Scholar

Hickey, R.J. 1990. Studies of neotropical Isoetes L. I. euphyllum, a new subgenus. Ann. Miss. Bot. Gard. 77(2): 239
DOI: 10.2307/2399537View Article Google Scholar

Hickey, R.J., C.C. Macluf and W.C. Taylor. 2003. A re-evaluation of Isoetes savatieri Franchert in Argentina and Chile. Amer. Fern J. 93(3): 126
DOI: 10.1640/0002-8444(2003)093[0126:AROISF]2.0.CO;2View Article Google Scholar

Hoot, S.B., W.C. Taylor and N.S. Napier. 2006. Phylogeny and biogeography of Isoetes (Isotaceae) based on nuclear and chloroplast DNA sequence data. Syst. Bot. 31(3): 449
DOI: 10.1600/036364406778388511View Article Google Scholar

IUCN Standards and Petitions Subcommittee. 2016. Guidelines for Using the IUCN Red List Categories and Criteria, ver. 12. IUCN Species Survival Commission. Accessed 2016 August 05. Available from:http://www.iucneredlist.org/

Jackson, B.D. 1928. A glossary of botanic terms with their derivation and accent. JB Lippincott Co., Philadelphia.
DOI: 10.5962/bhl.title.6304View Article

Johnson, E.R.L. 1984. Taxonomic revision of Isoetes L. in Western Australia. J. Roy. Soc. West. Austral. 66: 28

Jung, J., Y. Ryu, H. Won and H.K. Choi. 2014. Morphological and molecular characterization of a new record of Isoetes coromandelina subsp. coromandelina from Cambodia. Plant Syst. Evol. 300(1): 43
DOI: 10.1007/s00606-013-0858-yView Article Google Scholar

Kim, C., S. Bounphanmy, B.Y. Sun and H.K. Choi. 2010. Isoetes laosiensis, a new species from Lao PDR. Amer. Fern J. 100(1): 45
DOI: 10.1640/0002-8444-100.1.45View Article Google Scholar

Knox, E.M. 1950. The spores of Lycopodium, Phyloglossum, Selaginella and Isoetes and their value in the study of microfossils of Paleozoic age. Trans. Bot. Soc. Edin. 35: 210

Kott, L.S. and D.M. Brittion. 1983. Spore morphology and taxonomy of Isoetes in northeastern North America. Can. J. Bot. 61(12): 3140
DOI: 10.1139/b83-353View Article Google Scholar

Kremp, G.O.W. 1965. Morphologic encyclopedia of palynology. University of Arizona press, Tucson.
DOI: 10.1017/S0016756800053541View Article Google Scholar

Luebke, N.T. and J.M. Budke. 2003. Isoetes tennesseensis (Isoetaceae), an octoploid quillwort from Tennessee. Amer. Fern J. 93(4): 184
DOI: 10.1640/0002-8444(2003)093[0184:ITIAOQ]2.0.CO;2View Article Google Scholar

Macluf, C.C. and R.J. Hickey. 2007. Isoetes araucaniana, a new species from southern South America. Amer. Fern J. 97(4): 220
DOI: 10.1640/0002-8444(2007)97[220:IAANSF]2.0.CO;2View Article Google Scholar

Macluf, C.C., M.A. Morbelli and G.E. Giudice. 2006. Microspore morphology of Isoetes species (Lycophyta) from southern South America. Bot. Rev. 72(2): 121
DOI: 10.1663/0006-8101(2006)72[135:MMOISL]2.0.CO;2View Article Google Scholar

Marsden, C.R. 1976. A new subspecies of Isoetes coromandelina from Northern Australia. Contrib. Herb. Aust. 24: 1

Merrill, E.D. and L.M. Perry. 1940. A new Philippine Isoetes. Amer. Fern J. 30(1): 18
DOI: 10.2307/1544921View Article Google Scholar

Musselman, L.J. 2003. Ornamentation of Isoetes (Isoetaceae, Lycophyta) microspores. Bot. Rev. 68(4): 474
DOI: 10.1663/0006-8101(2002)068[0474:OOIILM]2.0.CO;2View Article Google Scholar

Musselman, L.J. and J.P. Roux. 2002. Isoetes toximontana (Isoetaceae), a new quillwort with green megaspores from the Northern cape of South Africa. Novon 12(4): 504
DOI: 10.2307/3393131View Article Google Scholar

Ninan, C.A. 1958. Studies on the cytology and phylogeny of the pteridophytes V: observation on Isoetaceae. J. Indian Bot. Soc. 37: 93

Panigrahi, G. 1981. Systematic of the genus Isoetes L. (Isoetaceae) in India. Biol Mem. 6(2):129

Pant, D.D. and G.K. Srivastava. 1962. The genus Isoetes in India. Proc. Natl. Acad. Sci. India Sect. B. 28: 242

Pant, D.D. and G.K. Srivastava. 1965. Cytology and reproductions in some Indian species of Isoetes. Cytologia 30(3): 239
DOI: 10.1508/cytologia.30.239View Article Google Scholar

Pfeiffer, N.E. 1922. Monograph of the Isoetaceae. Ann. Miss. Bot. Gard. 9(2): 79
DOI: 10.2307/2990000View Article Google Scholar

Prada, C. and C. H. Rolleri. 2005. A new species of Isoetes (Isoetaceae) from Turkey with a study of microphyll intercellular pectic protuberances and their potential taxonomic value. Bot. J. Linn. Soc. 147(2): 213
DOI: 10.1111/j.1095-8339.2005.00362.xView Article Google Scholar

Punt, W., P.P. Hoen, S. Blackmore, S. Nilsson and A.L. Thomas. 2007. Glossary of pollen and spore terminology. Rev. Palaeobot. Palynol. 143(1-2): 1
DOI: 10.1016/j.revpalbo.2006.06.008View Article Google Scholar

Rydin, C. and N. Wikstrom. 2002. Phylogeny of Isoetes (Lycopsida) resolving basal relationships using rbcl sequences. Taxon 51(1): 83
DOI: 10.2307/1554965View Article Google Scholar

Shukla, P.K, G.K. Srivastava and S.K. Shukla. 2002. The quillworts (Isoetes) of India: distribution, endemism and species radiation. Biodivers. Conserv. 11(6): 959
DOI: 10.1023/A:1015868228530View Article

Shukla, P.K, G.K. Srivastava, S.K. Shukla and S.K. Singh. 2007. Cyto-morphology based basal and sub-basal level evolutionary relationship among Isoetes L. species with special reference to Indian taxa. Proc. Nat. Acad. Sci. India. 77(B): 88

Shukla, P.K., G.K. Srivastava, S.K. Shukla and P.K. Rajagopal. 2005. Two new species of the genus Isoetes L. (Isoetaceae-Lycopsida) from India. Taxon 54(1): 109
DOI: 10.2307/25065306View Article Google Scholar

Srivastava, G.K. 1995. The Microspore structure of Indian species of Isoetes L. Palynology. 31(1): 35

Srivastava, G. K. 1998. Isoetaceae in India: morphology and taxonomy. Indian Fern J. 15(1

Srivastava, G.K. 2005. Systematics, biogeography and diversification of Indian Quillworts (Isoetes L.). J. Indian Bot. Soc. 84: 1

Srivastava, G.K., D.D. Pant and P.K. Shukla. 1993. The genus Isoetes in India. Amer. Fern J. 83(4): 105
DOI: 10.2307/1547587View Article Google Scholar

Srivastava, G.K., D.D. Pant and P.K. Shukla. 1996. The Microspores of Isoetes coromandelina (Isoetacae: Pteridophyta). Fern Gaz. 15(3): 101

Srivastava, G.K., M. Rai and M. Srivastava. 2003. Cytomorphological studies on some Indian population of Isoetes coromandelina L. f. In: Chandra, S and M Srivastava (eds.), Pteridology in the New Millennium. Kluwer Academic Publishers, New Delhi. pp. 191
DOI: 10.1007/978-94-017-2811-9_16View Article Google Scholar

Srivastava, G.K., M. Srivastava and P.K. Shukla. 1997. Quillworts of Pachmarhi Hills, Central India. Indian Fern J. 14: 38

Takamiya, M. 1999. Natural history and taxonomy of Isoetes (Isoetaceae). Acta Phytotaxo. Geobot. 50(1): 101

Taylor, W.C. and R.J. Hickey. 1992. Habitat, evolution and speciation in Isoetes. Ann. Miss. Bot. Gard. 79(3): 613
DOI: 10.2307/2399755View Article Google Scholar

Taylor, W.C., N.T. Luebke, D.M. Brittion, R.J. Hickey and D.F. Brunton. 1993. Isoetaceae. In: Convening editions. Flora of North America North of Mexico. Volume 2, Oxford University Press, New York. pp. 64

Troia, A. 2001. The genus Isoetes L. (Lycophyta, Isoetaceae)
DOI: 10.1080/00837792.2001.10670712View Article Google Scholar

Troia, A., J.B. Pereira, C. Kim and W.C. Taylor. 2016. The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa. Phytotaxa 277(2): 101
DOI: 10.11646/phytotaxa.277.2.1View Article Google Scholar

Tryon, A. and B. Lugardon. 1991. Spores of the Pteridophyta: surface, wall structure and diversity based on electron microscope studies. Springer-Verlag, New York.

Unni, K.S. 1967. On the occurrence of a new variety of Isoetes coromandelina L. in Raipur MP. J. Bombay Nat. Hist. Soc. 64: 590

Verma, S.C. 1961. Cytology of Isoetes coromandelina. Amer. Fern J. 51(2): 99
DOI: 10.2307/1546953View Article Google Scholar

Wang, Q.F., X. Liu, W.C. Taylor and Z.R. He. 2002. Isoetes yunguiensis (Isoetescease), a new basic deploid quillowrt from china. Novon 12(4): 587
DOI: 10.2307/3393143View Article Google Scholar

Watanabe, M., M. Takamiya, T. Matsusaka and K. Ono. 1996. Biosystematic studies on the genus Isoetes (Isoetaceae) in Japan III.
DOI: 10.1007/BF02344475View Article Google Scholar

Yadav, B.B., S.K. Singh, M. Srivastava, G.K. Srivastava. 2012. Comparative studies of six populations of Isoetes panchganiensis from India. Turk. J. Bot. 36: 667

Yadav, B.B., S.K. Singh, N.K. Dubey, S.K. Shukla, G.K. Srivastava. 2015. Hydrochemical characterization of some strands of Isoetes dixitei in India. Taiwania 60(2): 63
DOI: 10.6165/tai.2015.60.63View Article Google Scholar