Key to novelties allied to B. velutina 1. Plant without long bracts hiding the calyces; corolla (2.5)3–4 cm long, upper lobes of corolla absent……………………………………………...........................…………………………………..2 1. Plant with long bracts hiding the calyces, corolla 4–4.5 cm long; upper lobes of corolla present...................................................................................................................................... B. sceptrum­katanganum 2. Calyx lobes entire; corolla lobes orbicular-obovate, 15 × 16 mm, capsule 27 mm long........... B. obtecta 2. Calyx lobes toothed; corolla lobes elliptic, 25–27 × 8–17 mm, capsule 17 mm long.......... B. velutina

Published as part of Dominique Champluvier, 2011, New and overlooked Acanthaceae taxa from D. R. Congo, Rwanda and Burundi: (1) the genus Barleria, pp. 82-95 in Plant Ecology and Evolution 144 (1) on page 87, DOI: 10.5091/plecevo.2011.388, http://zenodo.org/record/1486150