J. Onana

Mid- to Late-Holocene branched GDGT-based air temperatures from a crater lake in Cameroon (Central Africa)
20250 citationsauthor #6
Sericanthe etugei and S. onanae (Coffeeae Rubiaceae) new cloud forest tree species Endangered in Southwest Cameroon & Bioko (Equatorial Guinea)
20250 citationsauthor #2
Cryptacanthus: a new genus of Acanthaceae from the Guineo-Congolian forests of tropical Africa
20251 citationsauthor #5
Tree community, vegetation structure and aboveground carbon storage in Atlantic tropical forests of Cameroon
20243 citationsauthor #4
Keetia nodulosa sp. nov. (Rubiaceae - Vanguerieae) of West - Central Africa: bacterial leaf nodulation discovered in a fourth genus and tribe of Rubiaceae
20246 citationsauthor #2
Voacanga madureirae (Apocynaceae), a new species from Atlantic Central Africa
20241 citationsauthor #5
Cytotoxic ent-abietane diterpenoids, banyangmbolides A-E, from the leaves of Suregada occidentalis
20242 citationsauthor #5
A Taxonomically-verified and Vouchered Checklist of the Vascular Plants of the Republic of Guinea
202324 citationsauthor #30
A massive Critically Endangered cloud forest tree, Microcos rumpi (Grewiaceae) new to science from the Rumpi Hills, SW Region, Cameroon
20234 citationsauthor #3
Discovery and conservation of Monanthotaxis bali (Annonaceae) a new Critically Endangered (possibly extinct) montane forest treelet from Bali Ngemba, North West Region, Cameroon
20235 citationsauthor #3
People-inspired names remain valuable
202315 citationsauthor #12
Undescribed 2-quinolines, onanaenine A and B, from Cameroonian Vepris onanae (Rutaceae)
20234 citationsauthor #5
A new cloud forest tree Lychnodiscus bali (Sapindaceae), Critically Endangered from the Bali-Ngemba Forest reserve, N.W. Region, Cameroon
20232 citationsauthor #2
Monanthotaxis bali (Annonaceae) a new Critically Endangered (possibly extinct) montane forest treelet from Bali Ngemba, Cameroon
20224 citationsauthor #3
A new Critically Endangered cloud forest tree Microcos (Grewiaceae-Malvaceae) from the Rumpi Hills of S.W. Region Cameroon
20220 citationsauthor #3
Impatiens banen and Impatiens etugei (Balsaminaceae), new threatened species from lowland of the Cross-Sanaga Interval, Cameroon
20228 citationsauthor #5
Vepris onanae (Rutaceae), a new Critically Endangered cloud-forest tree species, and the endemic plant species of Bali Ngemba Forest Reserve, Bamenda Highlands Cameroon
202212 citationsauthor #3
Economic and ethnobotanical importance of the genera Albizia, Parkia and Tetrapleura(Leguminosae-Mimosoideae) in Cameroon
20222 citationsauthor #2
Impatiens banen sp. nov. & I. etugei sp. nov. (Balsaminaceae), threatened lowland species of the Cross-Sanaga Interval, Cameroon
20222 citationsauthor #3
Domestication Syndrome in Dacryodes edulis (Burseraceae): Comparison of Morphological and Biochemical Traits between Wild and Cultivated Populations
20229 citationsauthor #9
Uvariopsis dicaprio (Annonaceae) a new tree species with notes on its pollination biology, and the Critically Endangered narrowly endemic plant species of the Ebo Forest, Cameroon
202222 citationsauthor #3
The montane trees of the Cameroon Highlands, West-Central Africa, with Deinbollia onanae sp. nov. (Sapindaceae), a new primate-dispersed, Endangered species
202116 citationsauthor #2
Lurking in the Shadows: A New Species of Drypetes (Putranjivaceae) from Central Africa Hiding in Forest Plots and Herbaria
20213 citationsauthor #6
The West and Central African species of Vepris Comm. ex A.Juss. (Rutaceae) with simple or unifoliolate leaves, including two new combinations
20217 citationsauthor #2
Plant diversity and conservation concerns in a semi-deciduous rainforest in Cameroon: implications for sustainable forest management
20218 citationsauthor #6
The endemic plant species of Bali Ngemba Forest Reserve, Bamenda Highlands Cameroon, with a new Endangered cloud-forest tree species Vepris onanae (Rutaceae)
20212 citationsauthor #3
Uvariopsis ebo (Annonaceae) a new, Critically Endangered tree species from the Ebo Forest, Cameroon and a key to the Cameroonian species of Uvariopsis
20216 citationsauthor #3
The endemic plant species of Mt Kupe, Cameroon with a new Critically Endangered cloud-forest tree species, Vepris zapfackii (Rutaceae)
202124 citationsauthor #2
State of the World’s Plants and Fungi
202086 citationsauthor #140
Diversity and distribution of algal settlement in Mangrove of Londji, Kribi-Southern-Cameroon
20201 citationsauthor #12
State of the world’s plants and fungi 2020
202079 citationsauthor #140
Extinction risk and threats to plants and fungi
2020369 citationsauthor #18
Deinbollia onanae (Sapindaceae), a new, Endangered, montane tree species from the Cameroon Highlands
20200 citationsauthor #2
Addressing the Vepris verdoorniana complex (Rutaceae) in West Africa, with two new species
201931 citationsauthor #2
Land use and land cover changes in Doume Communal Forest in eastern Cameroon: implications for conservation and sustainable management
201929 citationsauthor #7
(2681) Proposal to conserve the name Cola cauliflora ( Sterculiaceae ) with a conserved type
20193 citationsauthor #3
Vepris bali (Rutaceae), a new critically endangered (possibly extinct) cloud forest tree species from Bali Ngemba, Cameroon
201854 citationsauthor #3
Plant-waxes hydrogen and carbon isotopic composition and pollen data of sediment core B14 (Lake Barombi)
20180 citationsauthor #11
Reply to Giresse et al.: No evidence for climate variability during the late Holocene rainforest crisis in Western Central Africa
20185 citationsauthor #11
Reply to Clist et al.: Human activity is the most probable trigger of the late Holocene rainforest crisis in Western Central Africa
20187 citationsauthor #11
Pollen analysis of sediment core B14, Lake Barombi
20180 citationsauthor #11
Early anthropogenic impact on Western Central African rainforests 2,600 y ago
2018110 citationsauthor #11
Plant-waxes hydrogen and carbon isotopic composition of sediment core B14, Lake Barombi
20180 citationsauthor #11
Important Plant Areas: revised selection criteria for a global approach to plant conservation
2017213 citationsauthor #16
Garcinia lucida Vesque (Clusiaceae): from traditional uses to pharmacopeic monograph for an emerging local plant-based drug development
201713 citationsauthor #3
Botanical Sampling Gaps Across the Cameroon Mountains
20179 citationsauthor #2
2343-IJBCS-Article-Ngueguim Jules Roger
20160 citationsauthor #3
Can the Mangombe forest plantation contribute to restore and conserve biodiversity
20161 citationsauthor #3
Dinosterol δD values in stratified tropical lakes (Cameroon) are affected by eutrophication
20156 citationsauthor #6
The World Flora Online 2020 project: will Cameroon come up to the expectation?
20158 citationsauthor #1
Effect of aridity on δ13C and δD values of C3 plant- and C4 graminoid-derived leaf wax lipids from soils along an environmental gradient in Cameroon (Western Central Africa)
201569 citationsauthor #6
(Supplementary data Table EA-1) Plant biomass data from Cameroon
20140 citationsauthor #9
(Supplementary data Table EA-3) Sedimentary n-alkane d13C values of recent lake sediment samples from Cameroon, West Africa
20140 citationsauthor #9
n-alkane carbon isotope ratios in plants and recent lake sediments from Cameroon
20140 citationsauthor #9
The ecological niche of Dacryodes buettneri (Burseraceae), a timber tree in Central Africa.
20141 citationsauthor #2
Reconstructing C3 and C4 vegetation cover using n-alkane carbon isotope ratios in recent lake sediments from Cameroon, Western Central Africa
2014150 citationsauthor #9
Climatic niche of Dacryodes edulis (G. Don) H.J. Lam (Burseraceae), a semi-domesticated fruit tree native to Central Africa
20136 citationsauthor #6
Genetic diversity of Dacryodes buettneri (Engl.) H.J. Lam (Burseraceae), a timber tree in Central Africa
20130 citationsauthor #8
Growth and productivity of Pericopsis elata (Harms) Meeuwen in some forest plantations of Cameroon
20129 citationsauthor #6
Hydrogen isotope ratios of lacustrine sedimentary n-alkanes as proxies of tropical African hydrology: Insights from a calibration transect across Cameroon
2012168 citationsauthor #7
Estimating C3 vs. C4 vegetation cover from sedimentary records - a surface sediment test from Cameroon, Western Central Africa
20120 citationsauthor #7
The Orchidaceae of the Nyungwe National Park (Rwanda).
20100 citationsauthor #7
Urban production of flowers for medicinal uses in Ekozoa (Yaoundé-Cameroon).
20100 citationsauthor #6
Seed coat as Straightjacket? - on seed development and dispersal in the genus Crinum (Amaryllidaceae).
20100 citationsauthor #6
Medicinal plants used by the traditional healers of Bangui to treat diabetes.
20100 citationsauthor #7
Exploitation of commercial products in the community forests of Kompia and Kabilone (E. Cameroon): difficulties and prospects.
20100 citationsauthor #7
Improving the targeting of seed collecting programmes for ex situ conservation.
20103 citationsauthor #4
Ecological status of the Loranthaceae of the coastal region of Cameroon.
20100 citationsauthor #9
Amaryllidaceae in the flora of Lesotho.
20100 citationsauthor #5
Changes in plant species composition following a climatic gradient in West Africa.
20106 citationsauthor #11
Monitoring vegetation cover changes in Mount Oku and the Ijim Ridge (Cameroon) using satellite and aerial sensor detection.
20104 citationsauthor #6
Geographical distribution and nutritional value of some species of Termitomyces (Basidiomycetes) of Cameroon.
20100 citationsauthor #5
Physiological and agronomical characteristics under saline stress of Citrullus lanatus, Cucurbita moschata and Lagenaria siceraria.
20100 citationsauthor #11
Orchid conservation in the Banyang-Mbo Wildlife Sanctuary and its surroundings.
20100 citationsauthor #6
Vegetation characteristics and changes under cash crop cultivation in forest-Savanna mosaics in Cote d'Ivoire.
20107 citationsauthor #8
Plant diversity and conservation of afromontane rainforest with Coffea arabica in the Bonga region (SW Ethiopia).
20102 citationsauthor #6
The vegetation of high altitude marshes of Burundi.
20100 citationsauthor #6
Socio-cultural importance, economic and therapeutic potential of Carapa (Meliaceae) in Senegal.
20102 citationsauthor #6
River ecology and distribution of podostemaceae in Cameroon.
20102 citationsauthor #7
Taxonomic studies of the Cyperus rotundus complex (Cyperaceae) in east Africa.
20100 citationsauthor #6
Phytodiversity data - strengths and weaknesses, a comparison of collection and releve data from Burkina Faso.
20108 citationsauthor #9
Atlas of commercial timbers in humid tropical Africa: the example of Cameroon.
20100 citationsauthor #9
Diversity of species of Cantharellus, Lentinus and Termitomyces consumed by the pygmies of North Gabon.
20100 citationsauthor #5
Flora of the communal Pentaclethra eetveldeana forests in the Kisantu region (D.R. Congo).
20100 citationsauthor #6
Inventory of ornamental plants by the populations of Abidjan and San-Pedro, Côte d'Ivoire.
20101 citationsauthor #9
Asclepiad biogeography: insights from analysis of major biomes.
20100 citationsauthor #4
Plant conservation assessment in east Africa: procedures and first results.
20103 citationsauthor #8
The development of species level taxonomy in eastern Africa from the "Flora of Tropical Africa" to the present day - ideas and methods used.
20100 citationsauthor #5
Guinea-Conakry: new plant discoveries in the Simandou Range.
20100 citationsauthor #10
Floristic diversity in some regions of West Africa: the process of its degradation; the case of Ivory Coast.
20100 citationsauthor #4
The major environmental factors determining the distribution of the vegetation associations in the Loky-Manambato region of NE Madagascar.
20102 citationsauthor #8
The Loranthaceae of the Bafou area in Cameroon: identification, distribution, biology and eradication strategies.
20102 citationsauthor #6
Distribution of myco-heterotrophic (saprophytic) plants of Cameroon.
20107 citationsauthor #4
Habitat utilisation by elephants in the dry zone of Cameroon.
20100 citationsauthor #6
Zanthoxylum gilletii (Rutaceae) - a mainly guineo-congolian forest tree with a newly discovered disjunction to western Ethiopia.
20102 citationsauthor #5
Assessment of the flora of Burkina Faso.
20103 citationsauthor #9
Floristic inventory and identification of some elements of a management plan for the forest of Mpotsa in Burundi.
20100 citationsauthor #8
Identification and relationships between Senegalese species of the genus Corchorus L. (Grewioideae, Malvaceae).
20100 citationsauthor #11
Veterinary and magico-medicinal uses of Detarium microcarpum (Fabaceae) in south Mali.
20100 citationsauthor #7
Parallel evolution in plant-pollinator interaction in African Marantaceae
20103 citationsauthor #5

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