Synopsis of the genus Ligularia Cass. section Stenostegia Pojark. (Asteraceae, Senecioneae)

Abstract

The genus Ligularia Cass. section Stenostegia Pojark., including 11 species distributed mainly in Middle and Central Asia, is critically reviewed. A new subsection Microcephalae I. D. Illar. and 4 series — Narynenses I. D. Illar., Robustae I. D. Illar., Schischkinianae I. D. Illar. and Tianschanicae I. D. Illar. are described. Changes in systematics and nomenclature of species are made. Comments on typification are given; lectotypes of L. thyrsoidea (Ledeb.) DC, L. robusta (Ledeb.) DC, L. schischkinii Rubtz., L. narynensis (C. Winkl.) O. et B. Fedtsch., L. karataviensis (Lipsch.) Pojark., and neotype of L. kareliniana Stschegl. are designated. The key to species is given; data on ecology and geographical distribution are resulted.