Two new species of (Palmae/Arecaceae) from Cameroon and Gabon.

(Arecaceae, Calamoideae) is the most diverse genus of African palms with around 20 species. Two new species from Cameroon and Gabon, Mogue, Sonké & Couvreur, and Mogue, Sonké & Couvreur, are described and illustrated. Their affinities are discussed and the conservation status of each species is assessed. For both species, distribution maps are provided. is restricted to two small populations from central Gabon, where it occurs on hillsides on soil, and close to small streams. Its preliminary IUCN status is Endangered, being amongst the five most threatened palm species in Africa. potentially belongs to the moniliform section. is largely distributed from south Cameroon to south Gabon and is very common. It is also a multi-used palm, from which wine, grubs and construction material are extracted and sold. It generally occurs in large stands in a wide range of ecosystems such as swamps, coastal forests on partially inundated sandy soils and inundated savannahs. Its large stature, hard to access habitat (swamps) and abundant presence might have discouraged botanists to collect it until now. belongs to the taxonomically complex raphiate section.