Abstract
Abstract A taxonomic treatment of the genera Turnera and Piriqueta in the state of Pernambuco, northeastern Brazil, is presented. Fourteen species of Turnera and six species of Piriqueta were found in the Atlantic Forest and Caatinga, of which nine are endemic to Brazil. Turnera pernambucensis is threatened and restricted to the Atlantic Forest of Pernambuco, while T. joelii is a new record for the state. The species predominate in steppe savanna and semideciduous seasonal forest, but several of them grow naturally in anthropized areas. Catimbau National Park is the locality with the highest species richness. Tristyly is recorded for the first time in Piriqueta guianensis. Identification keys, descriptions, illustrations, distribution maps, and comments about habitat, flowering, fruiting, and morphological relationships are provided.
Highlights
Turnera L. and Piriqueta Aubl. are the only genera of the former Turneraceae Kunth ex DC. (Passifloraceae sensu lato according to APG IV 2016) that occur in Brazil
Nine species (45%) are endemic to Brazil, of which Turnera pernambucensis Urb. is restricted to Pernambuco and has recently been rediscovered (Zelenski et al 2016)
Turnera joelii is recorded for the first time in the state. Species of both genera occur in the Atlantic Forest and Caatinga areas
Summary
Turnera L. and Piriqueta Aubl. are the only genera of the former Turneraceae Kunth ex DC. (Passifloraceae sensu lato according to APG IV 2016) that occur in Brazil.
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