Cytotoxic abietane diterpenoids, banyangmbolides A-E, from the leaves of .

The chemical investigation of a leaf extract from a herbarium specimen of collected in Banyang Mbo Wildlife Sanctuary, Southwest Region, Cameroon, yielded five undescribed abietane diterpenoids, banyangmbolides A-E, (-), and four known diterpenoids, gelomulides A (), B (), D () and O (). The structures of the isolated compounds were determined using NMR, IR, ECD and HRESIMS. Compounds , and , showed 48-55% inhibition at 200 μM against FM-55-M1 human melanoma cells.

A Taxonomically-verified and Vouchered Checklist of the Vascular Plants of the Republic of Guinea.

The Checklist of the Vascular Plants of the Republic of Guinea (CVPRG) is a specimen-based, expert-validated knowledge product, which provides a concise synthesis and overview of current knowledge on 3901 vascular plant species documented from Guinea (Conakry), West Africa, including their accepted names and synonyms, as well as their distribution and status within Guinea (indigenous or introduced, endemic or not). The CVPRG is generated automatically from the Guinea Collections Database and the Guinea Names Backbone Database, both developed and maintained at the Royal Botanic Gardens, Kew, in collaboration with the staff of the National Herbarium of Guinea. A total of 3505 indigenous vascular plant species are reported of which 3328 are flowering plants (angiosperms); this represents a 26% increase in known indigenous angiosperms since the last floristic overview.

Domestication Syndrome in (Burseraceae): Comparison of Morphological and Biochemical Traits between Wild and Cultivated Populations.

For millennia, people have harvested fruits from the wild for their alimentation. Gradually, they have started selecting wild individuals presenting traits of interest, protecting and cultivating them. This was the starting point of their domestication.

(Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon.

Background: The Ebo Forest area is a highly threatened centre of diversity in the Littoral Region of Cameroon, globally important for conservation with many threatened species including 68 threatened species of plant, yet not formally protected. The tropical African evergreen forest tree genus Engl. & Diels (Annonaceae) is characterised by unisexual, usually cauliflorous flowers with a uniseriate corolla of four petals, and two sepals.

The montane trees of the Cameroon Highlands, West-Central Africa, with sp. nov. (Sapindaceae), a new primate-dispersed, Endangered species.

We test the hypothesis that the tree species previously known as . is a new species for science. We formally characterise and name this species as (Sapindaceae-Litchi clade) and we discuss it in the context of the assemblage of montane tree species in the Cameroon Highlands of West-Central Africa.

Early anthropogenic impact on Western Central African rainforests 2,600 y ago.

A potential human footprint on Western Central African rainforests before the Common Era has become the focus of an ongoing controversy. Between 3,000 y ago and 2,000 y ago, regional pollen sequences indicate a replacement of mature rainforests by a forest-savannah mosaic including pioneer trees. Although some studies suggested an anthropogenic influence on this forest fragmentation, current interpretations based on pollen data attribute the ''rainforest crisis'' to climate change toward a drier, more seasonal climate.