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A new species of Phaseolus (Leguminosae, Papilionoideae) sister to Phaseolus vulgaris, the common bean

MARTHA RENDÓN-ANAYA, ALFREDO HERRERA-ESTRELLA, PAUL GEPTS, ALFONSO DELGADO-SALINAS

Abstract


Integrating the information provided by different lines of evidence generated in previous studies, Phaseolus debouckii, a new species is described and illustrated. This species occurs only in central-southern Ecuador and north western Peru, mostly in what is known as the Amatope-Huancabamba Depression, and represents a sister species to Phaseolus vulgaris L. A comparison table with quantitative and qualitative morphological characters is given, as well as a distribution map and ecological information.


Keywords


gene genealogies, nomenclature, phylogeny, taxonomy

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DOI: http://dx.doi.org/10.11646/phytotaxa.313.3.3

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand