This study reports eight new records of the tribe Bignonieae (Bignoniaceae) for Paraiba state, northeastern Brazil:

Bignoniaceae is a Pantropical plant family that includes 82 genera and 830 species of trees, lianas, and shrubs. The Tabebuia alliance (14 genera and 147 species) and tribe Jacarandeae (2 genera and 50 species) are both Neotropical and represent the largest clades of trees and shrubs in the family. Here, we present a taxonomic treatment for these two clades for the state of Pernambuco, Brazil. Overall, we documented 23 species distributed in seven genera, i.e., Cybistax Mart. ex Meisn., Godmania Hemsl., Jacaranda Juss., Handroanthus Mattos, Sparattosperma Mart. ex Meisner, Tabebuia Gomes ex DC., and Zeyheria Mart. Six taxa are new records for the state, i.e., Cybistax antisyphilitica (Mart.) Mart., Handroanthus capitatus (Bureau & K. Schum) Mattos, Handroanthus umbellatus (Sond.) Mattos, Jacaranda cuspidifolia Mart., Sparattosperma catingae A.H. Gentry, and Tabebuia stenocalyx Sprague & Stapf. Furthermore, S. catingae, previously thought to be endemic to the Caatinga of Bahia, was documented for the first time in the Atlantic Forest domain. We present identification keys and taxonomic descriptions for all genera and species, as well as provide illustrations and information on the geographic distribution, habitat, and phenology for all species.

This study presents 3 new records of the Tabebuia Alliance (Bignoniaceae) for the state of Paraiba, northeastern Brazil: Godmania dardanoi (J. C. Gomes) A. H. Gentry, Handroanthus umbellatus (Sond.) Mattos and Tabebuia stenocalyx Sprague & Stapf. These species were found in preserved areas of Atlantic rain forest, growing in swampy areas, on sandy and clay soils, and flowering between December and June. For each new record for the state of Paraiba, we present detailed descriptions, taxonomic notes, geographic distribution and photographs.

Nomenclatural, taxonomic, and distribution novelties concerning Evolvulus chrysotrichos (Convolvulaceae): a rare and endangered species from Brazil. Evolvulus chrysotrichos is a rare and threatened species, known from its type collection and a few old specimens. New records closer to the type locality are reported 150 years after its first collection reported by literature. We present here a complete description of this species, its first illustration and photographs in the field, distribution and phenological data, and a reassessment of its conservation status. We also designate a second-step lectotype of the name E. chrysotrichos and the lectotypification of its synonym, E. guaraniticus.

This study report the first record of Allamanda blanchetii Kunth in the Atlantic Forest, Brazil. This species was collected from an upland forest in Semi-deciduous Seasonal Forest. This occurrence adds new information about the distribution of this species and expands its range to Brazil, which is important for its conservation. We provide taxonomic information, distribution maps, conservation status assessment, photograps, and an identification key for the Allamanda L. species in the Atlantic Forest.

This study shows a taxonomic treatment for all species of Bignonieae from the state of Pernambuco (Brazil). Through extensive herbarium and field work, we documented 42 species and 13 genera for Pernambuco, of which six species represent new records for the state (i.e., Adenocalymma coriaceum, Anemopaegma gracile, Anemopaegma velutinum, Bignonia sciuripabulum, Callichlamys latifolia and Fridericia cuneifolia). In addition, Anemopaegma citrinum was documented for the first time in the Atlantic Forest domain. We provide identification keys for genera and species, taxonomic descriptions, data on geographic distribution, habitat, phenology, and illustrations for all species.