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Three new species, a new combination, and a neotypification in Dahlstedtia (Leguminosae, Millettieae, Papilionoideae) from South America

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Abstract

Three new species of Dahlstedtia, D. burkartii, D. dehiscens, and D. lewisiana, are described from South America, and their relationships with related species are discussed. Dahlstedtia burkartii, from Argentina, has pink flowers with standard straight, whereas D. dehiscens and D. lewisiana, both from Brazil, have purplish to lilac flowers with a reflexed standard petal. A new combination, Dahlstedtia peckoltii, is proposed based on Lonchocarpus peckoltii and a neotype is selected for the latter. Information about geographic distribution and phenology of the species is provided.

Resumo

Três novas espécies de Dahlstedtia da América do Sul, D. burkartii, D. dehiscens e D. lewisiana, são descritas e suas relações com espécies afins são discutidas. Dahlstedtia burkartii, da Argentina, tem flores rosas com estandarte reto, enquanto D. dehiscens e D. lewisiana, ambas do Brasil, têm flores púrpuras a lilás com estandartes recurvados. Uma nova combinação, Dahlstedtia peckoltii, é proposta com base em Lonchocarpus peckoltii que também é neotipificado. Informações sobre distribuição geográfica e fenologia das espécies são fornecidas.

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Acknowledegments

We thank the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Process n° 140609/2006-7) for supporting the first author; the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Process n° 80/1289-9); the Kew Latin American Research Fellowship (KLARF) Programme that facilitated a three month visit to European herbaria, especially B, BM, G, K, M, OXF, P and the artist Klei Rodrigo de Sousa for the illustrations, and Marcos Sobral for translating the three diagnoses into Latin. This paper is part of the Ph.D. thesis of the first author presented to the “Programa de Pós-Graduação em Biologia Vegetal” of the Institute of Biology, Unicamp, which was advised by Dra. Ana Maria Goulart de Azevedo Tozzi.

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Authors and Affiliations

  1. Instituto de Ciências Biológicas, Departamento de Biologia Geral, Universidade Federal de Goiás, CP 131, Goiânia, 74001-970, GO, Brazil

    Marcos José Da Silva

  2. Instituto de Biologia, Departamento de Biologia Vegetal, Universidade Estadual de Campinas, CP 6109, Campinas, 13083-970, SP, Brazil

    Ana Maria Goulart De Azevedo Tozzi

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  1. Marcos José Da Silva
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  2. Ana Maria Goulart De Azevedo Tozzi
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Correspondence to Marcos José Da Silva.

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Da Silva, M.J., De Azevedo Tozzi, A.M.G. Three new species, a new combination, and a neotypification in Dahlstedtia (Leguminosae, Millettieae, Papilionoideae) from South America. Brittonia 64, 268–276 (2012). https://doi.org/10.1007/s12228-012-9242-4

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  • DOI: https://doi.org/10.1007/s12228-012-9242-4

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