Entandrophragma cylindricum
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| Entandrophragma cylindricum | |
|---|---|
 Robert Sharp · Public domain · source | |
| Name | Entandrophragma cylindricum |
| Genus | Entandrophragma |
| Species | cylindricum |
| Authority | (Sprague) Sprague |
| Family | Meliaceae |
Entandrophragma cylindricum is a large tropical tree species in the mahogany family originating from continental Africa. It is notable for its commercial timber value, historical exploitation in the timber trade, and role in West and Central African forest ecosystems. Conservation concerns have prompted international regulatory attention and research by botanical institutions.
Taxonomy and Nomenclature
Entandrophragma cylindricum is placed in the family Meliaceae and was described by the botanist Thomas Archibald Sprague. Taxonomic treatments appear in floras compiled by institutions such as the Royal Botanical Gardens, Kew, the Muséum national d'Histoire naturelle and the Missouri Botanical Garden. Synonyms and nomenclatural history were discussed in revisions by researchers affiliated with the International Plant Names Index and the Botanical Society of Britain and Ireland. Regional checklists produced by the Forest Stewardship Council and the Food and Agriculture Organization also record its accepted name.
Description
The species produces a straight, cylindrical bole that made it conspicuous to loggers operating under contracts issued by colonial administrations of Belgium, France, and United Kingdom in the 19th and 20th centuries. Mature individuals can reach heights referenced in field guides used by the Royal Geographical Society and measurements published in journals like the Journal of Tropical Ecology. Leaves and reproductive structures have been illustrated in monographs from the Linnean Society and herbaria at the Natural History Museum, London. Timber properties are summarized in manuals by the United States Department of Agriculture and the International Union of Forest Research Organizations.
Distribution and Habitat
Native range maps are included in assessments by the IUCN Red List, the World Conservation Monitoring Centre, and national herbaria in Cameroon, Gabon, Democratic Republic of the Congo, and Ghana. The species occurs in lowland and submontane tropical rainforests described in reports from the Central African Republic and the Republic of the Congo. Habitat descriptions appear in ecological surveys conducted by teams from the University of Oxford, University of Cambridge, and Makerere University. Historical logging concessions recorded in archives of the African Development Bank and the European Union influenced distribution through selective removal.
Ecology and Life History
Reproductive phenology and seed ecology have been studied in collaboration with the Botanic Gardens Conservation International and researchers publishing in the African Journal of Ecology and the Journal of Applied Ecology. Pollination and dispersal interactions involving frugivorous animals are discussed in fieldwork by the Wildlife Conservation Society and the World Wildlife Fund. Growth rates and demographic patterns feature in long-term plot data managed by the Center for International Forestry Research and the Tropical Ecology Assessment and Monitoring Network. Ecological roles in carbon storage and canopy structure are referenced in syntheses by the Intergovernmental Panel on Climate Change and the United Nations Environment Programme.
Uses and Economic Importance
High-quality timber marketed as "sapele" or related trade names has been central to commerce tracked by the International Tropical Timber Organization and national export statistics published by Gabon and Cameroon. Woodworking and furniture industries in cities like London, Paris, Rotterdam, and New York City used the timber in projects commissioned by firms such as those represented at the Milan Furniture Fair and the British Furniture Manufacturers association. Historical demand was influenced by colonial infrastructure projects overseen by agencies like the Colonial Office and the Belgian Ministry of Colonies. Non-timber uses and traditional medicinal applications are reported in ethnobotanical studies from universities including University of Lagos and Université Libre de Bruxelles.
Conservation Status and Threats
Assessments by the IUCN Red List and regulatory listings under the Convention on International Trade in Endangered Species of Wild Fauna and Flora reflect concern over over-exploitation. Threat drivers include illegal logging recorded by INTERPOL operations, habitat conversion traced to policies by the Food and Agriculture Organization, and industrial-scale agriculture promoted by multinational corporations operating under agreements with governments such as Nigeria and Ivory Coast. Conservation measures have been advocated by NGOs including the Rainforest Alliance, Conservation International, and the Wildlife Conservation Society.
Cultivation and Management Practices
Sustainable management guidelines appear in manuals by the Forest Stewardship Council, the International Union for Conservation of Nature, and technical bulletins from the Food and Agriculture Organization. Plantation trials and silvicultural experiments have been conducted by research groups at the Commonwealth Scientific and Industrial Research Organisation and national forestry colleges in Ghana and Cameroon. Certification schemes, community forestry initiatives encouraged by the United Nations Development Programme, and legal reforms influenced by courts such as the Ecowas Community Court of Justice form part of contemporary management frameworks.