References

1. Choisy, J.D. “Convolvulaceae In Prodromus systematis naturalais regni vegetabilis” A. P. DeCandolle (ed), Paris France, V. 9: (1845) 323-462. Print
2. Clay, K. and Schardl, C. “Evolutionary origins and ecological consequences of endophyte symbiosis with grasses”. Am. Na.t (Suppl) 160 (2002) 99–127. Print
3. Gamble, J.S. Flora of Presidency of Madras. Bot. Surv. India, Calcutta. Vol.II (1921) Print
4. Gamble, J.S. Flora of Presidency of Madras. Bot. Surv. India, Calcutta Vol. II (1923).Print
5. Gamble, J.S. Flora of the Presidency of Madras. Bot. Surv.India, Calcutta. Part I. (1935 ) Print
6. Judd, W.S., Campbell, C.S., Kellog, E.A. and Stevaens, P.E. Plant systematics Sinauer Associates, Inc. Massachusettes. (1999)Print
7. Mathew, K.M Flora of the Tamil Nadu Carnatic. Diocesan Press, Madras. Vol.I (1983) Print
8. Sasidharan, N. “Flowering Plants of Kerala – A check list” Kerala Forest Reseach Institute, Peechi. (2006) Print
9. Singh, G. “Plant systematics” Oxford and IBH Publishing Co. New Delhi ( 2004) Print
10. Singh, V.I., D.K. Jain and Meena Sharma. “Leaf architecture in Berberidaceae and its bearing on the circumscription of the family”. J. Ind. Bot. Soc. 57 (1978) 272-281. Print