A threatened new species of Ipomoea (Convolvulaceae) from the Brazilian Cerrado revealed by morpho-anatomical analysis

Abstract

A new species of <i>Ipomoea</i>, endemic to the Cerrado domain in Maranhão, Brazil, is described. <i>Ipomoea maranhensis</i> D.Santos & Buril, <b>sp. nov.</b> has been misidentified as <i>I. burchellii</i> Meisn. in several herbaria. Even though both species have oblong, pubescent leaves, they can be distinguished by morpho-anatomical characters. We present a diagnosis, complete description, illustration, taxonomic comments, conservation status and distribution map.