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Type: Article
Published: 2017-07-25
Page range: 259–265
Abstract views: 52
PDF downloaded: 1

A new species of Zanthoxylum (Rutaceae) with a key to the species from Northeastern Brazil

Universidade de São Paulo, Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto. Avenida dos Bandeirantes 3900, CEP 14051-901, Ribeirão Preto, São Paulo, Brazil.
Universidade de São Paulo, Departamento de Botânica, Instituto de Biociências, Rua do Matão, Travessa 14, 321, CEP 05508-900, São Paulo, São Paulo, Brazil.
Atlantic Rainforest alfa-taxonomy endangered species endemism Sergipe Sapindales Eudicots

Abstract

Zanthoxylum unifoliolatum Groppo & Pirani (Rutaceae), a new species from northeastern Brazil is here described and illustrated. To date, this species is known from a small number of collections from the state of Sergipe and considered endangered, given its restricted geographical distribution and the rapid deforestation of the Brazilian Atlantic Rainforest. Z. unifoliolatum can be readily distinguished from other Brazilian Zanthoxylum by its unifoliolate leaves, rather than pinnate leaves present in other Brazilian species of the genus A detailed description and illustrations of this new species are provided, as well as comments on the geographic distribution, phenology, generic relationships and conservation status. Additionally, a key to the species of Zanthoxylum from Northeastern Region of Brazil is provided.