A checklist of angiosperm flora of low elevation lateritic hills of northern Kerala, India

Main Article Content

K.A. Sreejith
https://orcid.org/0000-0002-6268-3973
V.B. Sreekumar
P. Prashob
https://orcid.org/0000-0002-6178-7324
S. Nita
https://orcid.org/0000-0002-7160-3736
M.P. Prejith
M.S. Sanil
https://orcid.org/0000-0002-3701-2035

Abstract

An inventory to prepare the checklist of angiosperm species in the lateritic hillocks of northern Kerala was conducted in five sampling sites during April 2013–March 2015.  In total, we recorded 364 genera with 535 species, of which 334 are native and 201 are non-native.  Native species were represented in 102 families, namely, Poaceae (28), Fabaceae (25), Acanthaceae (22), Rubiaceae (17) Euphorbiaceae (14), Commelinaceae (11), Phyllanthaceae (7), etc., whereas, non-native species were represented in 99 families.  Among the native species herbs are the predominant habit with 147 species (44%).  Out of the 72 endemic species, three taxa namely, Syzygium travancoricum, Santalum album and Hopea ponga are red listed species documented from the study area.  Twenty-seven invasive species were also recorded and major threats to the laterite ecosystems are by Lantana camara, Mikania micrantha, Pennisetum polystachyon, Ipomoea spp., and Senna spp.  Most part of the laterite has been converted to plantations, building sites and mining sites.  The indiscriminate mining for laterite, soil and demolishing the hillocks have severely threatened the very existence of the flora.


 

Article Details

How to Cite
[1]
K.A. Sreejith, V.B. Sreekumar, P. Prashob, S. Nita, M.P. Prejith and M.S. Sanil 2020. A checklist of angiosperm flora of low elevation lateritic hills of northern Kerala, India. Journal of Threatened Taxa. 12, 9 (Jun. 2020), 16077–16098. DOI:https://doi.org/10.11609/jott.4912.12.9.16077-16098.
Section
Communications

References

Ansari, R. & N.P. Balakrishnan (2009). The Family Eriocaulaceae in India. Bishen Singh Mahendra Pal Singh, Dehra Dun, 195pp.

Arunkumar, A.N., A. Dhyani & G. Joshi (2019). Santalum album. The IUCN Red List of Threatened Species 2019: e.T31852A2807668. Downloaded on 10 June 2020. https://doi.org/10.2305/IUCN.UK.2019-1.RLTS.T31852A2807668.en DOI: https://doi.org/10.2305/IUCN.UK.2019-1.RLTS.T31852A2807668.en

Ashton, P. (1998). Hopea ponga. The IUCN Red List of Threatened Species 1998: e.T33470A9786253. Downloaded on 10 June 2020. https://doi.org/10.2305/IUCN.UK.1998.RLTS.T33470A9786253.en DOI: https://doi.org/10.2305/IUCN.UK.1998.RLTS.T33470A9786253.en

Bachulkar, M. (1983). Endangered endemic taxa of Satara District, Maharashtra. Rayat Research Journal 1 (2): 109–115.

Balakrishnan, V.C., M.J. Palot & K.P. Rajesh (2010). Observations on the flora of Madayipara a midland laterite hill in Kannur District, Kerala. Malabar Trogon 8: 14–29.

Buchanan, F. (1807). A Journey From Madras Through the Countries of Mysore, Canara, and Malabar; Performed Under the Orders of the Most Noble the Marquis Wellesley, Governor General of India,Vol. 1., London, 424pp.

CAMP Workshops on Medicinal Plants, India (1998). Syzygium travancoricum. The IUCN Red List of Threatened Species 1998: e.T31202A9612226. Downloaded on 10 June 2020. https://doi.org/10.2305/IUCN.UK.1998.RLTS.T31202A9612226.en DOI: https://doi.org/10.2305/IUCN.UK.1998.RLTS.T31202A9612226.en

Diwakar, P.G. & R. Singh (2011). A new variety of Ceropegia attenuata Hook. (Asclepiadaceae) from Mookambika Wildlife Sanctuary, Karnataka, India. Indian Journal of Forestry 34: 209–212.

Gamble, J.S. & C.E.C. Fischer (1915–1935). Flora of the Presidency of Madras, Vol. 1–3. Adlord and Sons Ltd., London, 1389pp. DOI: https://doi.org/10.5962/bhl.title.21628

Hooker, J.D. (1872–1897). Flora of British India, Vol. 1–7.Reeve and Company, London, 5568pp.

Jayarajan, M. (2004). A socio-cultural and ecological study of the mid-land laterite hillocks along Kavvayi River basin. Status report based on a pilot study. Edat, Payanur, Kerala.

Joseph, K.T. & V.V. Sivarajan (1990). A new species of Nymphoides (Menyanthaceae) from India. Nordic Journal of Botany 10: 281–284.

Madhusoodanan, P.V. & N.P. Singh (1992). A new species of Lepidagathis (Acanthaceae) from South India. Kew Bulletin 47: 301–303.

Narayanaswamy, (1992). Geochemistry and genesis of laterite in parts of Cannanore district, North Kerala. PhD Thesis. Cochin University of Science and Technology, 116pp.

Prabhugaonkar, A., U.S. Yadav & M.K. Janarthanam (2009). Dipcadi goaense (Hyacinthaceae), a new species from the foothills of the Western Ghats, India. Kew Bulletin 64: 743–746.

Pradeep, A.K. & V.V. Sivarajan (1991). Justicia ekakusuma new species of Acanthaceae from peninsular India. Rheedia 1: 40–43.

Pradeep, A.K., K.T. Joseph & V.V. Sivarajan (1990). Rotala malabarica: a new species of Lythraceae from India. Botanical Bulletin of Academia Sinica 31: 59–61.

Rahangdale, S.S. & S.R. Rahangdale (2012). Variety Novae of Ceropegia mahabalei Hemadri et. Ansari [Apocynaceae: Asclepiadoideae]. The Indian Forester 138(2): 201–203.

Rahangdale, S.S. & S.R. Rahangdale (2014). Plant species composition on two rock outcrops from the northern Western Ghats, Maharashtra, India. Journal of Threatened Taxa 6(4): 5593–5612. https://doi.org/10.11609/JoTT.o3616.5593-612. DOI: https://doi.org/10.11609/JoTT.o3616.5593-612

Rahangdale, S.R. & S.S. Rahangdale (2018). Biodiversity of Durgawadi Plateaus. Department of Forests, Government of Maharashtra, 114pp.

Ramachandran, V.S. & V.J. Nair (1988). Flora of Cannanore. Calcutta: Botanical Survey of India, 599pp.

Raychaudhuri, S.P. (1981). The occurrence, distribution, classification and management of laterite and lateritic soils. Cahiers ORSTOM, Serie Pedologie 18: 249–252.

Sasidharan, N. (2004). Biodiversity documentation for Kerala part 6: Flowering plants of Kerala. Kerala Forest Research Institute, Peechi, Thrissur, 702pp.

Sasidharan, N. (2007). Flowering plants of Kerala(CD). Upadated checklist in CD form. Kerala Forest Research Institute, Peechi, Thrissur.

Sreejith, K.A., P. Prashob, V.B. Sreekumar, H.P. Manjunatha & M.P. Prejith (2016). Microhabitat Diversity in a Lateritic Hillock of Northern Kerala, India. Vegetos 29: 1–13.

Swapna, M.M., K.P. Rajesh, C.N. Manju & R. Prakashkumar (2012). Eriocaulon madayiparense (Eriocaulaceae)- A new species from the foot hills of the Western Ghats of India. PhytoKeys 10: 19–23.

Watve, A. (2013). Status review of Rocky plateaus in the northern Western Ghats and Konkan region of Maharashtra, India with recommendations for conservation and management. Journal of Threatened Taxa 5(5): 3935–3962. https://doi.org/10.11609/JoTT.o3372.3935-62 DOI: https://doi.org/10.11609/JoTT.o3372.3935-62

Yadav, S.R. & M.M. Sardesai (2002). Flora of Kolhapur District. Kolhapur, Shivaji University, 679pp.

Yadav, S.R., M. Sardesai & S.P. Gaikwad (2004). Ceropegia anantii (Ascelpiadaceae), a new species from Western Ghats, India. Journal of the Bombay Natural History Society 101: 141–143.