title: A new species of Solanum sect. Acanthophora (Solanaceae) from Argentina and Brazil.
abstract: A new species of Solanum belonging to section Acanthophora (subgenus Leptostemonum) from Argentina and Brazil is described. Solanum neei Chiarini & L.A.Mentz, sp. nov. is found in clearings of semideciduous forests and in secondary formations, from the states of Paraná, Rio Grande do Sul and Santa Catarina in Brazil to the Misiones province in Argentina. It is morphologically similar to Solanum incarceratum Ruiz & Pav. from Peru, Bolivia and Western-Central Brazil, differing mainly by its pedunculate inflorescences. A key to related species is provided, as well a photograph of the holotype, a distribution map and illustration.
authors.affiliation: Instituto Multidisciplinario de Biología Vegetal, CONICET-UNC. Vélez Sarsfield 299, CC 495, Córdoba 5000, ARGENTINA.
authors.forename: Franco E
authors.initials: FE
authors.lastname: Chiarini
authors.forename: Lilian Auler
authors.initials: LA
authors.lastname: Mentz
keywords: Acanthophora; Argentina; Atlantic Forest; Brazil; Leptostemonum; “spiny solanum”