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.

Two new records of palm species for Gabon: Valk. & Sunder. and Becc.

Background: Gabon is an important center of biodiversity in Central Africa. The country contains to date 27 species of palms. However, palms are generally poorly collected as these massive plants are hard to press and curate.

New species of (Annonaceae) and (Arecaceae/Palmae) from Monts de Cristal, Gabon.

Monts de Cristal National Park in northwest Gabon is one of the most species rich places in Central Africa. Here, we describe two new species, one in Annonaceae and one in palms. Couvreur & Niangadouma, is unique in the genus by emitting a strong lemon scent from the crushed leaves and young branches.

Sirdavidia, an extraordinary new genus of Annonaceae from Gabon.

A distinctive new monotypic genus from Gabon is described in the tropical plant family Annonaceae: Sirdavidia, in honor to Sir David Attenborough. Molecular phylogenetic analyses confirm that Sirdavidia, which is very distinct from a morphological standpoint, is not nested in any existing genus of Annonaceae and belongs to tribe Piptostigmateae (subfamily Malmeoideae), which now contains a total of six genera. The genus is characterized by long acuminate leaves, fully reflexed red petals, 16-19 bright yellow, loosely arranged stamens forming a cone, and a single carpel topped by a conspicuous stigma.