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Search Results
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Journal article
Cola species of the limestone forests of Africa, with a new, endangered species, Cola cheringoma (Sterculiaceae), from Cheringoma, Mozambique
Cheek, Martin ; Luke, Quentin ; Matimele, Hermenegildo ; Banze, Aurélio ; Lawrence, Poppy
Plant Science and Ecology, Evolution, Behavior and Systematics
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Journal article
A phylogenomic analysis of Nepenthes (Nepenthaceae)
Nepenthaceae is one of the largest carnivorous plant families and features ecological and morphological adaptations indicating an impressive adaptive radiation. However, investigation of evolutionary and taxonomic questions is hindered by poor phylogenetic understanding, with previous molecular studies based on limited loci and taxa. We use high-throughput sequencing with a target-capture...Murphy, Bruce ; Forest, Félix ; Barraclough, Timothy ; Rosindell, James ; Bellot, Sidonie …
Genetics, Molecular Biology, and Ecology, Evolution, Behavior and Systematics
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Journal article
Three new threatened Keetia species (Rubiaceae—Vanguerieae), from the forests of the Eastern Arc Mountains, Tanzania
Keetia sp. A, of the Flora of Tropical East Africa, based on Mabberley & Salehe 1496, is formally named as Keetia davidii following the discovery of a second specimen, also from the Ukaguru Mountains of the Eastern Arc of Tanzania. This small tree or shrub is assessed as Endangered using...Cheek, Martin ; Bridson, D.
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Journal article
Afrothismia kupensis sp. nov. (Thismiaceae), Critically Endangered, with observations on its pollination and notes on the endemics of Mt Kupe, Cameroon
The achlorophyllous mycotroph Afrothismia kupensis (Thismiaceae), formerly misidentified either as A. pachyantha or as A. gesnerioides, is described from Mt Kupe in South West Region, Cameroon and assessed as Critically Endangered using the IUCN (2012) categories and criteria. It is threatened by forest clearance due to small-holder agriculture. Mt Kupe,...Cheek, Martin ; Etuge, M. ; Williams, S.A.
Plant Science and Ecology, Evolution, Behavior and Systematics
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Journal article
A revision of the African genus Mesanthemum (Eriocaulaceae)
Mesanthemum is a genus comprising 16 species in the family Eriocaulaceae and is native to Africa and Madagascar. Eriocaulaceae are characterised by a basal tuft or rosette of narrow leaves and small flowers in heads. Mesanthemum can be recognised by diplostemonous flowers and fused glandular pistillate petals. While most Mesanthemum...Liang, Yuxi ; Phillips, Sylvia M. ; Cheek, Martin ; Larridon, Isabel
Africa, molecular phylogenetics, Madagascar, lectotypifications, new species, SEM seed images, and taxonomy
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Journal article
Notes on the plants of Bakossi, Cameroon, and the new Cola etugei and Cola kodminensis (Sterculiaceae s. str.)
Background and aims – This paper reports a further discovery during preparation for a monograph of the genus Cola, and also in the context of a long-term botanical survey in the Cross River-Sanaga interval of west-central Africa, focussing on species discovery and conservation through the Tropical Important Plant Areas programme.Methods...Cheek, Martin ; Tchiengue, Barthelemy ; Baldwin, Isabel
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Journal article
Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon
This is the first revision in more than 100 years of the African genus Pseudohydrosme, formerly considered endemic to Gabon. Closely related to Anchomanes, Pseudohydrosme is distinct from Anchomanes because of its 2-3-locular ovary (vs. unilocular), peduncle concealed by cataphylls at anthesis and far shorter than the spathe (vs. exposed,...Cheek, Martin ; Tchiengué, Barthélemy ; van der Burgt, Xander
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Journal article
New Guinea has the world’s richest island flora
New Guinea is the world’s largest tropical island and has fascinated naturalists for centuries. Home to some of the best-preserved ecosystems on the planet3 and to intact ecological gradients—from mangroves to tropical alpine grasslands—that are unmatched in the Asia-Pacific region4,5, it is a globally recognized centre of biological and cultural... -
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Journal article
Ternstroemia guineensis (Ternstroemiaceae), a new endangered cloudforest shrub with neotropical affinities from Kounounkan, Guinea, W. Africa.
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Book
Threatened Habitats & Tropical Important Plant Areas (TIPAs) of Guinea, West Africa.
Guinea has more than 250 documented unique and threatened plant species, more than is known for any other country in West Africa. To protect them should be not only a national priority but a global one. Among these species – these natural resources – are the potential for new medicines,...Couch, Charlotte ; Cheek, Martin ; Haba, Pépé ; Molmou, Denise ; Williams, Jenny …
West Africa, Threatened habitats, Guinea, and Tropical Important Plant Areas
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Book
Habitats Menacés et Zones Tropicales Importantes Pour les Plantes (ZTIP) de Guinée, Afrique de l'Ouest.
La Guinée compte plus de 250 espèces répertoriées de plantes uniques et menacées, plus que tout autre pays d'Afrique de l'Ouest. Assurer leur protection ne devrait pas uniquement être une priorité nationale, mais une priorité mondiale. Parmi ces espèces – ces ressources naturelles – il existe potentiellement de nouveaux médicaments,...Couch, Charlotte ; Cheek, Martin ; Haba, Pépé ; Molmou, Denise ; Williams, Jenny …
West Africa, Threatened habitats, Guinea, and Tropical Important Plant Areas
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Journal article
Kindia (Pavetteae, Rubiaceae), a new cliff-dwelling genus with chemically profiled colleter exudate from Mt Gangan, Republic of Guinea.
A new genus (Pavetteae, Rubiaceae) is described with a single species, , based on collections made in 2016 during botanical exploration of Mt Gangan, Kindia, Republic of Guinea in West Africa. The Mt Gangan area is known for its many endemic species including the only native non-neotropical Bromeliaceae . is...Cheek, Martin ; Magassouba, Sékou ; Howes, Melanie-Jayne R. ; Doré, Tokpa ; Doumbouya, Saïdou …
Conservation, Rubiaceae, Tropical Important Plant Areas, Cliff-dwelling, Epilithic, and Guinea-conakry
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Journal article
Important Plant Areas: revised selection criteria for a global approach to plant conservation.
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Journal article
The endemic plant species of Mt Kupe, Cameroon with a new Critically Endangered cloud-forest tree species, Vepris zapfackii (Rutaceae).
We revise and update the records of strict and near-endemic species of Mt Kupe, Cameroon respectively from 31 strict endemics in 2004, to 25 today, and with near-endemic species 30, unchanged in number but with turnover. The changes result from new collections, discoveries and taxonomic changes in the last 16...Cheek, Martin ; Onana, Jean Michel
Mt Kupe (Cameroon), Vepris zapfackii, Perhumid, Threatened plants, Medicinal, and Submontane forest
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Journal article
A key to the species of Keetia (Rubiaceae - Vanguerieae) in West Africa, with three new, threatened species from Guinea and Ivory Coast.
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Journal article
Three new Critically Endangered Inversodicraea (Podostemaceae) species from Tropical Africa: I. senei, I. tanzaniensis and I. botswana.
Cheek, Martin ; Séné , Olivier ; Ngansop , Eric
Waterfalls, Cameroon , Podostemaceae, Tropical Africa, Inversodicraea , Hydroelectric , Rheophytes , Botswana , Extinct , and Tanzania
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Journal article
Genomic insights into rapid speciation within the world’s largest tree genus [PREPRINT].
Species radiations have long fascinated biologists, but the contribution of adaptation to observed diversity and speciation is still an open question. Here, we explore this question using the clove genus, Syzygium, the world’s largest genus of tree species comprising approximately 1200 species. We dissect Syzygium diversity through shotgun sequencing of...Low, Yee Wen ; Rajaraman, Sitaram ; Tomlin, Crystal ; Ahmad, Joffre Ali ; Ardi, Wisnu …
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Journal article
Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects.
Species of the genus Engl. (Podostemaceae) are African rheophytes, restricted to rapids and waterfalls as are all members of the family. Previously, was shown to be polyphyletic with two separate clades. The name Engl. was recently resurrected for one clade that is sister to the American genera (Tul.) Wedd., Michx.... -
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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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Journal article
Lukea gen. nov. (Monodoreae-Annonaceae) with two new threatened species of shrub from the forests of the Udzungwas, Tanzania and Kaya Ribe, Kenya.
A new genus, Cheek & Gosline (Annonaceae) is erected for two new species to science, Cheek & Gosline from Kaya Ribe, SE Kenya, and Cheek & Gosline from the Udzungwa Mts, Tanzania. is characterised by a flattened circular bowl-shaped receptacle-calyx with a corolla of three free petals that give the... -
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Journal article
Chemistry, taxonomy and ecology of the potentially chimpanzee-dispersed Vepris teva sp.nov. (Rutaceae) endangered in coastal thicket in the Congo Republic.
Continuing a survey of the chemistry of species of the largely continental African genus , we investigate a species previously referred to as sp. 1 of Congo. From the leaves of sp. 1 we report six compounds. The compounds were three furoquinoline alkaloids, kokusaginine (1), maculine (2), and flindersiamine (3),... -
Journal article
Genomic insights into rapid speciation within the world’s largest tree genus Syzygium.
Species radiations, despite immense phenotypic variation, can be difficult to resolve phylogenetically when genetic change poorly matches the rapidity of diversification. Genomic potential furnished by palaeopolyploidy, and relative roles for adaptation, random drift and hybridisation in the apportionment of genetic variation, remain poorly understood factors. Here, we study these aspects...Low, Yee Wen ; Rajaraman, Sitaram ; Tomlin, Crystal M. ; Ahmad, Joffre Ali ; Ardi, Wisnu H. …
Syzygium, Evolutionary genetics, Phylogenomics, Polyploidy in plants, and Comparative genomics
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Journal article
The ECAT dataset: expert-validated distribution data of endemic and sub-endemic trees of Central Africa (Dem. Rep. Congo, Rwanda, Burundi).
In this data paper, we present a specimen-based occurrence dataset compiled in the framework of the Conservation of Endemic Central African Trees (ECAT) project with the aim of producing global conservation assessments for the IUCN Red List. The project targets all tree species endemic or sub-endemic to the Central African... -
Journal article
Sixty-seven species newly recorded for the flora of Angola: recent findings from vegetation surveys and herbarium collections.
Angola is a tropical country with many biogeographical units and, therefore, has a high floristic diversity. Although an increasing number of floristic studies has been carried out in Angola in recent years, the country is still considered to be underinvestigated as many species being collected were previously unknown there. Several... -
Journal article
Recircumscription of the Nepenthes alata group (Caryophyllales: Nepenthaceae), in the Philippines, with four new species.
An overview of Nepenthes in the Philippines is presented. Four new species, Nepenthes extincta sp. nov., N. kitanglad sp. nov., N. kurata sp. nov. and N. leyte sp. nov. are described and illustrated from the Philippines and placed in the Nepenthes alata group. An updated circumscription and key to the...Cheek, Martin ; Jebb, Matthew
Conservation, Threatened, Ultramafic, Philippines, Nepenthes alata group, and Mindanao (Philippines)
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Book chapter
Dioncophyllaceae.
Cheek, Martin
Nomenclature, Dioncophyllaceae, Gabon, Habitats, Morphology, Geographical distribution, Identification, and Taxonomy
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Journal article
The Nepenthes micramphora (Nepenthaceae) group, with two new species from Mindanao, Philippines.
The N. micramphora group is erected to accommodate the species N. micramphora, N. abgracilis sp. nov. and N. cid sp. nov. from submontane habitats in Mindanao, Philippines. An overview of the genus in the Philippines is presented in the context of recent discoveries. The greater taxonomic importance of pitcher characters...