National Academy Science Letters

, Volume 42, Issue 3, pp 283–286 | Cite as

Taxonomic Analyses Suggest a New Record of Lygodium japonicum (Lygodiaceae) from Terai Regions of Uttar Pradesh, India

  • Deepali Johari
  • Ajit Pratap SinghEmail author
Short Communication


Lygodium japonicum (Thunb.) Sw., a climbing fern belonging to family Lygodiaceae has been encountered from Sonaripur forests of Dudhwa National Park in terai regions of Uttar Pradesh. Discovery of this species from above forest is a new record and addition to the pteridophytic flora of terai regions of Uttar Pradesh, including entire gangetic plain. Present contribution provides a detailed taxonomic analyses, illustrations, photographs, examined specimens citation, ecology, distribution and habit of the species. Distinctive taxonomic attributes including rhizomatous hairs, winged rachis and petiole, non-articulated pinnae, crenulated pinnules, pubescent rachis, mid-veins, veins and lamina has been largely measured to augment some additional taxonomic characters. Discussion on distinguished taxonomic attributes and plasticity with allied species has been provided. An assertion on its extended range of distribution and new record in terai regions of India is also conferred.


Pteridophytes Lygodium japonicum New record Terai regions India Taxonomy 



Authors are thankful to Director, CSIR-National Botanical Research Institute, Lucknow for providing necessary facilities. One of authors (APS) thank to colleagues for their consistent assistance when and wherever needed. Thanks are also due to Uttar Pradesh State Biodiversity Board, Lucknow for financial assistance under GAP-3315.


  1. 1.
    Singh S, Panigrahi G (1984) Systematics of genus Lygodium Sw. (Lygodiaceae) in India. Proc Ind Acad Sci 93(2):119–133Google Scholar
  2. 2.
    Chandra S (2000) The ferns of India (enumeration, synonyms & distribution). International Book Distributors, Dehradun, pp 1–459 (i–xii)Google Scholar
  3. 3.
    Beddome RH (1883) Handbook to the ferns of British India, Ceylon and the Malaya Peninsula. Thacker, Spink & Co., Calcutta, pp 448–453Google Scholar
  4. 4.
    Beddome RH (1892) Supplement to the ferns of British India. Ceylon and the Malaya Peninsula. Thacker, Spink & Co, Calcutta, p 108Google Scholar
  5. 5.
    Singh S, Panigrahi G (2005) Ferns and ferns-allies of Arunachal Pradesh. Bishen Singh Mahendra Pal Singh, Dehradun, pp 1–426 (i–xx)Google Scholar
  6. 6.
    Dixit RD, Bhandari JB, Mukhopadhyay R (2001) A new species of Lygodium (Lygodiaceae) from North Andamans, India. Nordic J Bot 21(4):427–430CrossRefGoogle Scholar
  7. 7.
    Mehra PN, Bir SS (1964) Pteridophytic Flora of Darjeeling and Sikkim Himalayas. Res Bull Panj Uni (ns) 15:104–105Google Scholar
  8. 8.
    Singh B, Singh VN, Phukan SJ, Sinha BK, Borthakur SK (2012) Contribution to the Pteridophytic flora of India: Nokrek Biosphere Reserve, Meghalaya. J Threat Taxa Comm 4(1):2277–2294CrossRefGoogle Scholar
  9. 9.
    Khullar SP (1994) An illustrated fern flora of West Himalaya (I). International Book Publisher and Distributors, Dehradun, pp 1–506 (i–xxxx)Google Scholar
  10. 10.
    Manickam VS, Irudayaraj V (1992) Pteridophyte flora of the Western Ghats-South India. B. I. Publications Pvt. Ltd., New Delhi, pp 1–652Google Scholar
  11. 11.
    Singh BP, Upadhyay R (2014) Pteridophytes diversity of Satpura Hills. Int J Curr Microbiol App Sci 3(9):162–168Google Scholar
  12. 12.
    Singh AP, Johari D, Khare PB (2014) Bio-geographical, distribution and species diversity of Pteridophytes in Dudhwa National Park, Uttar Pradesh India. In: National conference on modern approaches to Pteridophytes: biology, biodiversity and bioresource. souvenir & abstract, CSIR-IHBT Palampur & Indian Fern Society. pp 38–39Google Scholar
  13. 13.
    Singh AP, Johari D (2015) Ethnobotany and Social context of Pteridophytes used by Tharu tribes in Terai regions of Uttar Pradesh. J Econ Taxon Bot 39(3–4):512–526Google Scholar

Copyright information

© The National Academy of Sciences, India 2018

Authors and Affiliations

  1. 1.Pteridology LaboratoryCSIR-National Botanical Research InstituteLucknowIndia

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