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2024
Journal article
Keetia nodulosa sp. nov. (Rubiaceae - Vanguerieae) of West-Central Africa: bacterial leaf nodulation discovered in a fourth genus and tribe of Rubiaceae.
Keetia nodulosa Cheek, a cloud forest climber nearly endemic to Cameroon, with a single record from Nigeria, is described and illustrated. It is remarkable as the first known species to be recorded with bacterial leaf nodules (BLN) in the genus Keetia, and also, in the tribe Vanguerieae. Other genera in... -
2023
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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... -
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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2018
Journal article
Vepris bali (Rutaceae), a new critically endangered (possibly extinct) cloud forest tree species from Bali Ngemba, Cameroon.
Cheek, Martin ; Gosline, George ; Onana, Jean-Michel
Medicinal plants, Essential oils, Rutaceae, Cameroon, Conservation, Vepris bali, Cloud forest, New species, and Bali Ngemba (Cameroon)
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2022
Journal article
Vepris onanae (Rutaceae), a new Critically Endangered cloud-forest tree species, and the endemic plant species of Bali Ngemba Forest Reserve, Bamenda Highlands Cameroon.
We revise and update the records of strict and near-endemic species of the Bali Ngemba Forest Reserve, the largest known surviving patch (c. 8 km in area) of submontane or cloud forest in the Bamenda Highlands, Cameroon which have lost >96 % of their original forest due to human activities....Sexual dimorphism, Bamenda Highlands (Cameroon), Oricia Pierre, Medicinal, Submontane forest, Stage dependent, Vepris onanae, Bali Ngemba Forest Reserve (Cameroon), and Cameroon
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2021
Journal article
The structure of Leguminosae-Detarioideae dominant rain forest in Korup National Park, Cameroon.
Background and aims – We studied a cluster of trees in the Leguminosae subfamily Detarioideae, to: (1) determine the size, structure, and tree species composition of this cluster; (2) map the size, shape, and structure of groups of individual Detarioideae tree species in the cluster.Location – Lowland rain forest in... -
2021
Journal article
Kupeantha yabassi (Coffeeae-Rubiaceae), a new Critically Endangered shrub species of the Ebo Forest area, Littoral Region, Cameroon.