Fabaceae Lindl. in a Conservation Unit in the Semi-Arid Region of Paraíba, Brazil Author Gomes, Aureliana Santos Departamento de Geografia - Universidade Federal de Campina Grande: - Campus I, Centro de Humanidades. Unidade Acadêmica de Geografia-UAG, R. Aprígio Veloso, 882, Universitário, Campina Grande, PB, 58428 - 830, Brasil. Author Rodrigues, Erimágna De Morais Author Moura, Débora Coelho Departamento de Geografia - Universidade Federal de Campina Grande: - Campus I, Centro de Humanidades. Unidade Acadêmica de Geografia-UAG, R. Aprígio Veloso, 882, Universitário, Campina Grande, PB, 58428 - 830, Brasil. Author Melo, José Iranildo Miranda De Programa de Pós-Graduação em Ecologia e Conservação - Universidade Estadual da Paraíba - UEPB, Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Av. das Baraúnas 351, Campus Universitário, Bairro Universitário, Campina Grande, PB, 58429 - 500, Brasil. Author Ribeiro, Rayane De Tasso Moreira Universidade Federal Rural de Pernambuco, Departamento de Biologia, Laboratório de Taxonomia Vegetal (LATAX), Rua Dom Manoel de Medeiros, s / n, Campus Dois Irmãos, 52.171 - 900, Recife, PE, Brasil. Author Queiroz, Rubens Teixeira De Departamento de Sistemática e Ecologia- Universidade Federal da Paraíba - Campus I, Centro de Ciências Exatas e da Natureza, Jardim Universitário, Castelo Branco, João Pessoa, PB, 58051 - 900, Brasil. & Author for correspondence: rbotânico @ gmail. com text Phytotaxa 2022 2022-07-19 555 1 17 41 http://dx.doi.org/10.11646/phytotaxa.555.1.2 journal article 102841 10.11646/phytotaxa.555.1.2 2e2412c5-4709-4f24-b489-db901a316721 1179-3163 6875635 28. Poecilanthe grandiflora Bentham (1860: 80) . ( Fig. 3f ) Trees , branches glabrous, inermous. Nectary absent. Stipules caducous. Leaves imparipinnate, 5–6–foliolate, leaflets alternate, ovate-elliptic, venation brochidodromous, translucid punctuation absent. Inflorescence raceme, terminal. Flowers pedicellate, zygomorphic, diplostemonous; calyx gamosepalous, sepals 5, corolla dialypetalous, papilionaceous, lilac, petals 5; androecium monadelphous, homodinamous, anthers longitudinal; ovary superior, stipitate, pauciovulate. Fruit legume, sessile, oblanceolate, plane, margin straight, epicarp glabrous, brown. Seeds orbicular, plane, coat black, hilum basal. Examined material:— BRAZIL . Paraíba : Maturéia , Pico do Jabre , 800 m elev., 04 November 2019 , fl., Aureliana Gomes 3112 ( HACAM ) . Distribution and ecology:— The species is endemic to Brazil , registered in the Northeast (AL, BA, CE, MA, PB, PE) and Southeast (MG), associated with the Caatinga and Atlantic Rainforest domains growing in gallery forest, seasonal deciduous forest and semideciduous, in areas of secondary vegetation ( Meireles & Tozzi 2007 ; Flora do Brasil 2020 . Phenology:— Registered with flowers in November. Taxonomic discussion:— Poecilanthe grandiflora can be recognized, mainly, by the arboreous habit, imparipinnate leaves with alternate leaflets without translucent punctuations, lilac flowers and legume fruit, sessile. Among the Papilionoideae species found in the area, it can be readily recognized for presenting lilac flowers and legume with rigid valves.