Lucena, D. da S., Lucena, M. de F. de A., de Sousa, J.M., Silva, R.F.L. and de Souza, P.F. 2015. Vascular flora of an inselberg in the state of Paraiba, mesoregion of backcountry, Northeast of Brazil. Scientia Plena. 11, 1 (Jan. 2015).