Recircumscription and two new species of Pachystachys (Tetramerium lineage: Justicieae: Acanthaceae)
12 February 2016
Côrtes, Ana Luiza; Daniel, Tom; Rapini, AlessandroPhylogenetic studies in Acanthaceae revealed that Schaueria azaleiflora and three species of Streblacanthus are closely related to the genus Pachystachys. In the present study, we propose the enlargement of Pachystachys to reflect these relationships. Two new species are described and illustrated, P. gracilis from Brazil and P. linearibracteata from Peru, and four new combinations are proposed in the genus. A key to identify the 18 species of Pachystachys s.l. is also provided.
Doi
10.1111/njb.01126