Monteiro, F.K.D.S., Fernando, E.M.P., Lucena, M.D.F.D.A. and Miranda De Melo, J.I. 2018.

A new species of northeastern Brazilian endemic genus Harpochilus (Acanthaceae)

. Phytotaxa. 358, 3 (Jul. 2018), 289–294. DOI:https://doi.org/10.11646/phytotaxa.358.3.6.