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2024
Journal article
Keita (Aptandraceae-Olacaceae s.l.), a new genus for African species previously ascribed to Anacolosa, including K. deniseae sp. nov., an Endangered submontane forest liana from Simandou, Republic of Guinea.
We show that the two continental African species previously ascribed to the genus , differ in so many architectural, floral and vegetative characters from the remaining species of the genus (which occur from Madagascar to the western Pacific, including the type) that they clearly represent a separate genus. The African... -
2023
Journal article
Afrothismiaceae (Dioscoreales), a new fully mycoheterotrophic family endemic to tropical Africa.
is a genus of non-photosynthetic mycoheterotrophs from the forests of continental tropical Africa. Multiple phylogenetic inferences using molecular data recover the genus as sister to a clade comprising mycoheterotrophic Thismiaceae and the photosynthetic family Taccaceae, contrary to earlier placements of and Thismiaceae within Burmanniaceae. Morphological support for separating from the... -
2023
Journal article
A taxonomic synopsis of unifoliolate continental African Vepris (Rutaceae).
Descriptions and illustrations are presented for three new species to science, Cheek Cheek (both Udzungwa Mts, Tanzania), and Q.Luke & Cheek (SE Kenyan kaya forests), in the context of a synoptic taxonomic revision and with an identification key to all the known unifoliolate taxa of in continental Africa. The new... -
2023
Journal article
Discovery and conservation of Monanthotaxis bali (Annonaceae) a new Critically Endangered (possibly extinct) montane forest treelet from Bali Ngemba, North West Region, Cameroon.
is the only known, solely montane (occurring solely above 2000 m alt.) species of the genus. It joins (Rwanda) and (Tanzania), two other species that can also occur above 2000 m alt. is an addition to the small number (28) of the tree species of the surviving montane forests of... -
2023
Journal article
A massive Critically Endangered cloud forest tree, Microcos rumpi (Grewiaceae) new to science from the Rumpi Hills, SW Region, Cameroon.
We describe (Grewiaceae) a massive new species to science from the Rumpi Hills of SW Region Cameroon, a proposed Tropical Important Plant Area. Confined on current evidence to submontane forest, the species is threatened by expanding habitat clearance for farms and is assessed as Critically Endangered. A large tree, attaining... -
2023
Journal article
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... -
2022
Journal article
Impatiens banen and Impatiens etugei (Balsaminaceae), new threatened species from lowland of the Cross-Sanaga Interval, Cameroon.
We describe two range-restricted new species to science from the genus (Balsaminaceae), both threatened, from lowland of the Cross-Sanaga Interval of western Cameroon. The first, appears to be restricted to an open seepage microhabitat on granitic inselbergs in the lowland-submontane forest zone of the Ebo Forest in Littoral Region and... -
2023
Journal article
Rinorea spongiocarpa and Rinorea dimakoensis (Violaceae), new threatened species of forest trees from East and South Regions of Cameroon and Gabon.
Two tree species are described as new to science: Achound. sp. nov. (placed in [unranked] Brachypetalae) and Achound. sp. nov. (placed in [unranked] Ilicifolieae). Both species occur in Cameroon, south of the Sanaga river, the first from South and East Regions, occurring in evergreen forest from Ngovayang and Lolodorf across...Achoundong, Gaston ; Cheek, Martin
Threatened plants, Gabon, Hydro-electric projects, Rinorea spongiocarpa, Vulnerable, Forest trees, New species, Rinorea dimakoensis, Cameroon, and Conservation
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2013
Journal article
Three new or resurrected species of Leptonychia (Sterculiaceae- Byttneriaceae-Malvaceae) from West-Central Africa.