Allamanda calcicola (Apocynaceae), an overlooked new species from limestone outcrops in the States of Minas Gerais and Bahia, Brazil
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Allamanda calcicola Souza-Silva & Rapini, an overlooked new species endemic to the limestone outcrops along the São Francisco River Basin, in south-western Bahia and northern Minas Gerais, Brazil, is described and illustrated. It was confused with A. martii and A. schottii, two species from eastern Brazil, which (along with A. polyantha) form a different complex of closely related species. However, A. calcicola is more closely related to A. puberula, another species from the semi-arid region of Brazil.
Key Wordscaatinga calcareous rock Neotropics Rauvolfioideae semi-arid vegetation taxonomy
This article is part of a project on Apocynaceae diversity, funded by Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB). The Programa de Pesquisa em Biodiversidade (PPBio) do Semi-árido supported fieldwork and Universidade Estadual de Feira de Santana provided a PROBIC/UEFS fellowship to the first author. We thank M. Lúcia Kawasaki for assistance with English, Cássio van den Berg for reviewing the Latin diagnosis and two anonymous reviewers for improving the text. RFSS is currently supported by a DTI-3 fellowship of the National Counsel of Technological and Scientific Development (CNPq) and AR by a Pq2 grant (CNPq).
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