Typification of Ranunculus binatus Kit. ex Rchb. (Ranunculaceae)

Abstract

Reichenbach published Ranunculus binatus in his Flora Germanica Excursoria in 1832, based on a specimen collected by Welden in Transylvania, Romania, and attributed the name to Kitaibel. Since then, the identity of R. binatus has been a focus of discussion by Schur, Janka, Schiller, Jasiewicz and further botanists, in particular since Schiller considered R. binatus a corner stone in the evolution of the R. auricomus complex. To clarify the concept of R. binatus and settle the application of the name, it is here typified. Because no specimen used with certainty by Reichenbach appears to be extant, a well preserved specimen in the herbarium Kitaibelianum, Budapest, identified by Kitaibel himself as R. binatus, collected by Genersich in northern Slovakia and morphologically agreeing well with the original description, is designated as the neotype of the name R. binatus. © 2011 BGBM Berlin-Dahlem.