The lonely endemic Palni Hills Rudraksha Tree Elaeocarpus blascoi Weibel (Magnoliopsida: Malvales: Elaeocarpaceae), Tamil Nadu, India

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Dhanaraj Felix Irudhayaraj
Raju Ramasubbu

Abstract

The study on exploration, phenology, floral morphology and seed biology of little known endemic species Elaeocarpus blascoi Weible were conducted in the forest areas of Palni hills. This study confirmed that only three individual existing in the wild; one mature individual available in the wild, whereas the other two individuals are under the conservation of NGO. The considerable percentage of tender shoots, flowers and fruits were infested by unidentified insects (aphids/ticks). The seed germination percentage in the natural habitat is very poor. The distribution and survival of species in the wild is questionable. The threat status of the species needs to be reassessed and updated as Endangered in the IUCN list and effective strategies to be developed to protect the species from further extinction.

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Author Biographies

Dhanaraj Felix Irudhayaraj, The Gandhigram Rural Institute

Department of Biology, The Gandhigram Rural Institute, Gandhigram, Tamil Nadu 624302, India

Raju Ramasubbu, The Gandhigram Rural Institute

Department of Biology, The Gandhigram Rural Institute, Gandhigram, Tamil Nadu 624302, India

References

Bhuyan, P., M.L. Khan & R.S. Tripathi (2002). Regeneration status and population structure of Rudraksh (Elaeocarpus ganitrus Roxb.) in relation to cultural disturbances in tropical wet evergreen forest of Arunachal Pradesh. Current Science 83: 1391-1394.

Khan, M.L., P. Bhuyan & R.S. Tripathi (2003). Regeneration of Rudraksh (Elaeocarpus ganitrus Roxb.) - a threatened tree species: germination strategies. International Journal of Ecology and Environmental Science 29: 255-260.

Mathew, K.M. (1999). The Flora of Palni Hills, South India. Part 1 - Polypetalae. The Rapinat Herbarium, Tiruchirapalli, 145-146pp.

Pavendan, P., V.A. Gideon & S.C. Rajasekaran (2012). Cost effective ex situ conservation (Airlayering) of Elaeocarpus blascoi an endangered medicinal tree in Western Ghats of Palni Hills, Tamil Nadu, South India. The Indian Forester 138(11): 1056-1058.

Sharma, B.D. & M. Sanjappa (1993). Flora of India: Portulacaceae - Ixonanthaceae, Botanical Survey of India, Calcutta, iii+529pp.

Weibel, R. (1968). Morphologie de l’ embryonet de la graine des Elaeocarpus. Candollea 23: 101-108.

Wiart, C. (2006). Medicinal plants of Asia and The Pacific. CRC/Taylor & Francis, Boca Raton, 87pp.

World Conservation Monitoring Centre (1998). Elaeocarpus blascoi. The IUCN Red List of Threatened Species. Version 2014.2. . Downloaded on 10 October 2014