An account of species of Pteronia occurring in Namibia is presented, together with an updated key. New material of P. quadrifaria Dinter confirmed that this is a valid species and not a synonym of P. lucilioides DC., and is resurrected. Species descriptions, global and Namibian distributions, conservation status, habitat and phenological information are presented for the 24 species recognised from Namibia. During this study it became clear that many species names have not been properly typified. As a result arguments are presented for the choice of 10 lectotypes, eight of which concern Pteronia with five of these for names of species accepted here. Four species of Pteronia that have been described from or are at least partly occurring in Namibia but that are no longer considered part of this genus are briefly discussed. Keywords: Asteraceae, key, lectotypes, southern Africa, taxonomy.