, Volume 63, Issue 1, pp 151-154
Date: 24 May 2008

A new species of Macroptilium (Benth.) Urb. (Leguminosae: Papilionoideae: Phaseolinae) from North-Eastern Brazil

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A new species of Macroptilium sect. Microcochle (Benth.) J. A. Lackey is herein described from the states of Piauí and Bahia, Brazil. Macroptilium cochleatum is characterized by few-flowered inflorescences, calyx teeth longer than the tube, a tightly four-coiled keel, and linear, patent fruits. The discovery of this unique Macroptilium species, with its distally coiled keel, expands the diagnostic features of the genus. A key to the Brazilian species of sect. Microcochle is provided.