A new genus, Rockhausenia (Compositae: Senecioneae: Senecioninae)

Summary Werneria Kunth (Compositae: Senecioneae: Senecioninae) was effectively lectotypified by Rockhausen based on rigida . Two later lectotypifications have apparently been made, firstly (presumably Cabrera) W. graminifolia and secondly Funk) nubigena , yet the Index Nominum Genericorum website has no type stated. In removing to then newly recognised Xenophylllum Funk moved Rockhausen’s thereby creating a superfluous generic synonym. All species that in Xenophyllum are thus wernerias nomenclatural sense. of described since Funk’s revision transferred : X. funkianum lorochaqui The remainder here placed new genus Rockhausenia Senecioninae), generitype is selected, corresponding 27 combinations made at level; relevant subgeneric sectional also with two subgenera recognised, one three sections. confusion surrounding name Oresigonia commented on. A nomenclator all names provided.