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A new species of Canavalia (Leguminosae, Papilionoideae) subgenus Wenderothia from the Colombian and Venezuelan Llanos

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Abstract

Canavalia llanorum (subgenus Wenderothia) from the northwestern Llanos region of Colombia and Venezuela (Orinoquia) is described and illustrated, and its morphological relationship with an allied species is discussed. The new species is morphologically related to C. bicarinata, but it differs mainly by its legumes having only one extra medium rib (vs. two ribs in C. bicarinata), and by its leaflets elliptic-ovate or obovate (vs. ovate). We also discuss the phylogenetic position of C. llanorum and present geographical and ecological information about the new species.

Resumen

Canavalia llanorum (subgénero Wenderothia) de la región Noroeste de los Llanos de Colombia y Venezuela (Orinoquia), es descrita, ilustrada y sus relaciones morfológicas con su especie afín son discutidas. Esta nueva especie presenta similitudes con C. bicarinata, sin embargo, difiere por la legumbre con una sola costilla en el medio (vs. dos costillas en C. bicarinata) y por los folíolos elípticos-ovados hasta obovados (vs. ovados). Se discute la posición sistemática de C. llanorum basada en análisis filogenéticos, y se presenta información acerca de la distribución y ecología de la nueva especie.

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Acknowledgments

We thank the staff of B, COL, FMB, HUEFS, MER, MO, and PORT for assisting us during herbarium visits, and for specimen loans and images, the Centro Internacional de Agricultura Tropical (CIAT, Cali, Colombia) for providing seeds of Canavalia bicarinata and C. llanorum from the forage germplasm collection, Gustavo Surlo for the illustrations of the new species, and Gwilym Lewis and an anonymous reviewer for suggestions on the manuscript. In addition, the first author thanks the REFLORA project (CAPES, CNPq process 563533/2010-2) for financial support of her visit to the Kew herbarium, the Missouri Botanical Garden for the 2014 Elizabeth E. Bascom Fellowship, the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for a PhD scholarship, and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for a PDJ (postdoctoral) scholarship (process 162899/2015-7). We also thank the Sistema Nacional de Pesquisa em Biodiversidade (SISBIOTA, processes CNPq 563084/2010-3 and FAPESB PES0053/2011) and the Programa de Capacitação em Taxonomia (PROTAX, process CNPq 440487/2015-3) for financial support.

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Author notes

  1. Gerardo A. Aymard C

    Present address: Ciprogress Greenlife, Calle 86A N0. 15--31, P.O. Box 260161, Bogotá D. C., Colombia

Authors and Affiliations

  1. Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Av. Transnordestina, s/n, Novo Horizonte, Feira de Santana, Bahia, 44036-900, Brazil

    Cristiane Snak & Luciano Paganucci de Queiroz

  2. UNELLEZ-Guanare, Programa de Ciencias del Agro y el Mar, Herbario Universitario (PORT), Mesa de Cavacas, Estado Portuguesa, 3350, Venezuela

    Gerardo A. Aymard C

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  1. Cristiane Snak
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Correspondence to Cristiane Snak.

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Snak, C., Aymard C, G.A. & de Queiroz, L.P. A new species of Canavalia (Leguminosae, Papilionoideae) subgenus Wenderothia from the Colombian and Venezuelan Llanos. Brittonia 70, 233–240 (2018). https://doi.org/10.1007/s12228-017-9512-2

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