R. Jose, E. J. Vincent, K. Subin, P. A. Jose, and A. G. Pandurangan, “New Population Records and Ecology of <i>Humboldtia bourdillonii</i> (Leguminosae: Caesalpinioideae) - A Critically Endangered Tree of Southern Western Ghats, Kerala”, Nelumbo, vol. 62, no. 1, pp. 40–45, Jul. 2020.