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 4. Arachis dardanii Krapovickas & Gregory (1994: 76–79 f) Herbs , branches pilose, inermous. Nectary absent. Stipules lateral, lanceolate, adnate to the petiole. Leaves paripinnate, 4–foliolate, leaflets opposite, obovate, venation brochidodromous, translucid punctuation absent. Inflorescence spikes, axillary. Flowers sessile flowers, zygomorphic, diplostemonous; calyx gamosepalous, sepals 5, corolla dialypetalous, papilionaceous, yellow, petals 5; androecium monadelphous, homodinamous, anthers longitudinal; ovary superior, sessile, pauciovulate. Fruit loment, stipitate, elliptic, cylindrical, margin straight, epicarp glabrous, yellow. Seeds ovoid, turgid, coat yellow, hilum basal. Examined material:— BRAZIL . Paraíba : Maturéia , Pico do Jabre , 1197 m elev., 14 August 2019 , fl. & fr., Aureliana Gomes 3004 ( HACAM ) . Distribution and ecology: —The species is endemic to Brazil , more precisely from the Caatinga domains and can also be found in the Cerrado and Atlantic Rainforest ( Córdula et al. 2008 ), with records in the Northeast (AL, BA, CE, MA, PB, PE, PI, RN, SE) and Central-West (GO) (Flora of Brazil 2020). Phenology: —Registered with flowers and fruits in August. Taxonomic discussion:— Arachis dardanii can be recognized by the herbaceous habit, stipule adnate with petiole, 4-foliolate leaflets, axillary spike inflorescence, sessile flower, yellow papilionaceous corolla, and the yellow loment fruit. This species is popularly known as amendoim de carcará.