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Plant Science Today (PST)

Research communications

Vol. 8 No. 4 (2021)

Rediscovery, resurrection and lectotypification of endemic Isoetes sampathkumarnii L. N. Rao from India

DOI
https://doi.org/10.14719/pst.2021.8.4.1343
Submitted
22 June 2021
Published
30-09-2021 — Updated on 04-10-2021
Versions

Abstract

An interesting species of Isoetes was collected from Jambughoda, Wildlife Sanctuary, Gujarat. After a review of literature and comparison of the morphological characters with type specimens, it was identified as I. sampathkumarnii L. N. Rao. It is endemic species of south India and rediscovered after a lapse of 63 years. The species shows several features that make it unique in the genus. Earlier, I. sampathkumarnii was also treated as synonym of I. coromandelina L.f. and I. sahyadrii Mahabala. However, it has an idiosyncratic velum character and spore ornamentation that makes it different from other species. Hence, the authors resurrected it as a distinct species. The original material is ambiguous hence, a lectotype of I. sampathkumarnii has been designated here.

References

  1. Patil SM, Rajput KS. The genus Isoetes from India: An overview. Plant Sci Today. 2017;4(4):213–26. https://doi.org/10.14719/pst.2017.4.4.339
  2. Fraser-Jenkins CR, Gandhi KN, Kholia BS, Benniamin A. An Annotated Checklist of Indian Pteridophytes Part-1 (Lycopodiaceae to Thelypteridaceae). Messrs Bishen Singh Mahendra Pal Singh; 2017;p. 54–60.
  3. Fraser-Jenkins CR. New Species Syndrome in Indian Pteridology and the ferns of Nepal. International Book Distributors, Dehra Dun; 1997; p. 404.
  4. Fraser-Jenkins CR. Taxonomic Revision of Three Hundred Indian Subcontinental Pteridophytes with a Revised Census-List. Bishen Singh Mahendra Pal Singh, Dehra Dun. 2008; p. 685.
  5. Fraser-Jenkins CR. Lectotypification and epitypification of Isoetes sahyadriensis (Isoetaceae) from S. W. India. Indian J. Forestry. 2015;38(3):231–32.
  6. Mazumdar J, Rajput KS, Patil SM. (2565) Proposal to reject the name Isoetes sahyadrii (Isoetaceae). Taxon. 2017;66 (6):1470.
  7. Mahabale TS. On a new species of Isoetes in India. Curr Sci. 1938;7:62–63.
  8. Rao LN. A new species of Isoetes from Bangalore Mysore State. Curr Sci. 1944;13: 286–87.
  9. Pant DD, Srivastav GK. The genus Isoetes in India. Proc Natl Inst Sci India, Pt B Biol Sci. 1962;28:242–80.
  10. Gena CB, Bharadwaja TN. Three new species of genus Isoetes L. from Rajasthan. Jour Bomb Nat Hist Soc. 1984;81:165–68.
  11. Srivastava GK, Pant DD, Shukla PK. The genus Isoetes in India. Amer Fern J. 1993;83(4):105–19. https://doi.org/10.2307/1547587
  12. IUCN. The IUCN Red List of Threatened Species. 2020. Version 2020–2. Available from: https://www.iucnredlist.org. Downloaded on 09 July 2020.
  13. McNeill J. Holotype specimens and type citations: General issues. Taxon. 2014;63:1112–13. http://dx.doi.org/10.12705/635.7

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