Khaya anthotheca
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Khaya anthotheca is a species of the mahogany family(Meliaceae). Their natural range is in tropical Africa . The wood is traded and used in many ways.
description
Appearance and foliage leaf
Khaya anthotheca grows as a large, evergreen tree that can reach heights of up to 60 meters. The richly branched treetop is elongated or rounded. Buttress roots are present on old specimens . The bark is grayish-brown and smooth on young branches, gray and brown speckled on old branches and trunks and smooth or sometimes peeling.
The alternate and spiral leaves on the branches are petiolate. The 15 to 30 centimeter long leaf blades are pinnate unpaired with three to seven leaf pinna. The smooth, glossy dark green leaf pinna has a pointed to rounded and somewhat asymmetrical base and a smooth edge. The leaf veins are easy to see on the underside of the leaflets.
Inflorescence and flower
Khaya anthotheca is single sexed ( monoecious ). The flowering period extends from September to December. Many flowers stand together in branched inflorescences at the branch ends . The sweet-smelling, white, unisexual flowers are four to five-fold and have a diameter of up to 1 centimeter. The stamens are fused into a tube up to 6 millimeters long.
Fruit and seeds
The egg-shaped, hard, woody capsule fruit with a diameter of up to 6 centimeters opens with four or five valves. The seeds are membranous all around. The fruits ripen between March and September.
Occurrence
The natural range of Khaya anthotheca is in tropical Africa : Uganda , Cameroon , Zaire , Ivory Coast , Ghana , southeastern Nigeria , Sierra Leone , Angola , Malawi , Mozambique , Zambia and Zimbabwe .
Khaya anthotheca is a neophyte in South Africa . In South Africa, this species thrives at medium to low altitudes in evergreen forests and gallery forests . In Tanzania it usually thrives in the foothills of mountain ranges in well- drained soils , in swamps and along rivers.
Khaya anthotheca is successfully used as a forest plant in the eastern part of South Africa, Cuba and Puerto Rico .
In the IUCN Red List , Khaya anthotheca is classified as vulnerable = endangered. As one of the suppliers for African mahogany, Khaya anthotheca is particularly hard to exploit in parts of East and West Africa. The regeneration in natural sites is low, especially when the fruit-bearing tree specimens are rare and genetic diversity is becoming scarcer.
Names
Common names are: red mahogany as well as some other types, nyanja : mbawa, mlulu; in Zimbabwe Mubarwa, Mururu, Muwawa; East African mahogany, Nyasaland mahogany, red mahogany (Eng.); Oos-Afrikaanse mahonie (Afr.); Acaujo (Fr.), African Mahogany, White Mahogany (Eng.); Acajou Blanc, Acajou D'Afrique (Fr.).
Taxonomy
The first description was made of this kind in 1859 under the name Garretia anthotheca by Friedrich Martin Josef Welwitsch in Apontamentos Phytogeographicos 1858 , S. 587. The type locality is Mont de Queta, golungo alto in Angolo. The type material has the herbarium number Welwitsch 1314. It was placed in the genus Khaya in 1878 by Anne Casimir Pyramus de Candolle in Monographiae Phanerogamarum , 1, p. 721 . Another synonym for Khaya anthotheca (Welw.) C.DC. is Khaya nyasica Stapf ex Baker f. The specific epithet anthotheca is made up of the Greek words anthos for flower and bar .
swell
- Alec Naidoo: Datasheet Khaya anthotheca , 2007 at Plantzafrica . (Section description)
- Entry with the Flora of Zimbabwe . (Section description)
Individual evidence
- ↑ a b c d e f g h Alec Naidoo: Datasheet Khaya anthotheca , 2007 at Plantzafrica .
- ↑ a b Khaya anthotheca in Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
- ↑ a b Khaya anthotheca in the endangered Red List species the IUCN 2011. Posted by: W. Hawthorne, 1997. Accessed September 11, 2011th
- ↑ Khaya anthotheca at Tropicos.org. Missouri Botanical Garden, St. Louis
Web links
- Data sheet and data sheet at the FAO .
- Data sheet for all timber-producing species called Acajou D'Afrique.
- Datasheet at thewoodexplorer.com .
- Data sheet for commercial timbers from Delta.
- Datasheet at AgroForestryTree Database - worldagroforestrycentre.org .
- Khaya anthotheca . In: S. Dressler, M. Schmidt, G. Zizka (Eds.): African plants - A Photo Guide. Senckenberg, Frankfurt / Main 2014.