New species of Gymnanthes (Euphorbiaceae) from Bolivia and Colombia, and taxonomic notes on the genus in Venezeula

Abstract

New, locally endemic species of Gymnanthes are described from Bolivia (G. microphylla) and Colombia (G. hirsuta). Both species are characterized, among other features, by a specific indumentum different from each other and from other, related species. In addition, two species from Venezuela are discussed: G. apiculata is proposed as a synonym of Actinostemon caribaeus, and the name G. hypoleuca is lectotypified.