Research Article | Published: 30 July 2022

Pteridophytes of Namdapha National Park, Arunachal Pradesh, N.E. India

Christopher Roy Fraser-Jenkins

Indian Journal of Forestry | Volume: 45 | Issue: 1 | Page No. 41-64 | 2022
DOI: https://doi.org/10.54207/bsmps1000-2022-08T8L3 | Cite this article

Abstract

Namdapha National Park in eastern Arunachal Pradesh near the Myanmar border is perhaps the most bio-diverse park in India, being situated at the edge of the region of the centre of diversity of Sino-Himalayan species and also being connected to the S.E. Asian (Malesian) flora through the adjacent mountain ranges of Myanmar. The area has very high rainfall and a great range of altitude (from c. 300 m to 4500 m). Despite increasing human pressure, the Park still contains large areas of species-rich, pristine tropical-type rain-forest and temperate forest, along with secondary forest. It is thus a notable haven for a very great diversity of pteridophytes (ferns and allies, including lycophytes), which form an obvious and often dominant part of the ground vegetation, with tree-ferns (Cyathea) above. However only the lower regions have been explored scientifically, up to c. 500 m altitude. A remarkable nine tenths of the altitude-range of the park remains entirely unexplored and its high-altitude Sino-Himalayan flora, still quite unknown, must be immensely rich, including the pteridophytes. A checklist of pteridophytes of the park is given here as known so far from all relevant herbarium-collections and from the authors’ own collections, altogether 184 taxa, though well over twice that number should be expected if a far-reaching scientific expedition could take place, which has not so far occurred.

Keywords

Arunachal Pradesh, Namdapha, Pteridophytes, Revised checklist

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References

1. Chauhan, A.S., 1990. Pteridophytes, in Check List of Flora in Namdapha. In Sharma, B.D., Chauhan, A.S. & Wadhwa, B.M. (eds), Study and Conservation of the Plant Resources of the Proposed Namdapha Biosphere Reserve, Arunachal Pradesh. Technical Report (Part-1): i-vi, 1-650, t. 1-41.  Botanical Survey of India Eastern Circle, Shillong.

2. Chauhan, A.S. and Wadhwa, B.M., 1996. Pteridophytes. In Hajra, P.K. (eds), A Contribution to the Flora of Namdapha, Arunachal Pradesh. Botanical Survey of India, Howrah, Calcutta.

Google Scholar

3. Ebihara, A., Fraser-Jenkins, C.R., Parris, B.S., Zhang, X.-C., Yang, Y.-H., Chiou, W.-L., Chang, H.-M., Lindsay, S., Middleton, D., Kato, M., Praptosuwiryo, T.N., Amoroso, V., Barcelona, J.F., Rajapaksha, R.H.G., Park, C.-H., Murakami, N. and Hoya, A., 2012. Rare and threatened pteridophytes of Asia 1. An enumeration of narrowly distributed taxa, Bull. National Mus. Nat. Sci., Tokyo, B Bot., 38(3), pp.93-119.

Google Scholar

4. Fraser-Jenkins, C.R., 1997. New Species Syndrome in Indian Pteridology and the ferns of Nepal, pp.403 and two errata. International Book Distributors, Dehradun.

Google Scholar

5. Fraser-Jenkins, C.R., 2008. Endemics and Pseudo-endemics in Relation to the Distribution Patterns of Indian Pteridophytes, Taiwania 53(3), pp.264-292. [Reprinted in Indian Fern J. 25, pp.1-45 (2008) and in Amoroso, V.B. (eds), Proceedings of the 4th Symposium on Asian Pteridology and Garden Show: 105-129 (5.2008). Central Mindanao Univ., Musuan, Bukidnon.]

Google Scholar

6. Fraser-Jenkins, C.R., 2012. Rare and Threatened Pteridophytes of Asia 2. Endangered Species of India - the higher IUCN categories, Bull. Natl. Mus. Nat. Sci., Tokyo, B Bot., 38(4), pp.153-181.

Google Scholar

7. Fraser-Jenkins, C.R. and Baishya, A.K., 2020. Pteridophytes of Arunachal Pradesh, N.E. India - List of Verified Species, Indian J. Forest., 43(1), pp.87-95.  https://doi.org/10.54207/bsmps1000-2021-RU14O6

8. Fraser-Jenkins, C.R., Gandhi, K.N., Kholia, B.S. and Benniamin, A./Kandel, D.R., 2016-2020. An Annotated Checklist of Indian Pteridophytes 1, pp.562; 2, pp.573; 3, pp.450. Bishen Singh Mahendra Pal Singh, Dehradun.

Google Scholar

9. Fraser-Jenkins, C.R., Pangtey, Y.P.S. and Khullar, S.P., 2011 (“2010”). Asplenium laciniatum D.Don (Aspleniaceae), a critical complex, and confused species in the Indian subcontinent, Indian Fern J., 27(1 & 2), pp.178-215.

Google Scholar

10. Hovenkamp, P.H., 1986. A monograph of the fern genus Pyrrosia (Polypodiaceae), Leiden Bot. Ser., 9, pp.310. E.J. Brill, Leiden Univ. Press, Leiden.

Google Scholar

11. Lenin J., 2014. Where have all the big animals gone?  Indian park devoid of many species, further threatened by forest loss, Mongabay News 08, pp.1-11.

12. Proctor, J., Haridasan, K. and Smith., G.W., 1998. How far north does Lowland Evergreen Tropical Forest go?, Global Ecol. Biogeog. Letters, 7(2), pp.141-146.  https://doi.org/10.2307/2997817

Google Scholar

13. Schuettpelz, E. and Schneider, H., et al. PPG 1 2016. A community-derived classification for extant lycophytes and ferns. The Pteridophyte Phylogeny Group, J. Syst. Evol., Beijing, 54(6), pp.563-603.  https://doi.org/10.1111/jse.12229

14. Singh, S. and Panigrahi, G., 2005. Ferns and Fern-Allies of Arunachal Pradesh. 1,2.  pp.881.  Bishen Singh Mahendra Pal Singh, Dehradun

Google Scholar

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How to cite

Fraser-Jenkins, C.R., 2022. Pteridophytes of Namdapha National Park, Arunachal Pradesh, N.E. India. Indian Journal of Forestry, 45(1), pp.41-64. https://doi.org/10.54207/bsmps1000-2022-08T8L3

Publication History

Manuscript Received on 14 June 2022

Manuscript Revised on 22 July 2022

Manuscript Accepted on 27 July 2022

Manuscript Published on 30 July 2022

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