Brachystegia
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Brachystegia is a genus in the subfamily of caesalpinioideae (Caesalpinioideae) within the family of the Leguminosae (Fabaceae). The approximately 26 deciduous tree species are native to tropical Africa and many species are Miombo -Vegetation.
description
Brachystegia species grow as unreinforced trees . The alternate leaves arranged on the branches are divided into a petiole and a leaf blade. The pair of pinnate leaf blades usually contain four to many, rarely two to three pairs of opposite, sessile leaflets . There are glands on the petiole and the leaf rhachis . Stipules are present.
In terminal, simple or compound, racemose inflorescences are usually many flowers together. The flowers each stand over two well-developed bracts that fully enclose the flower bud and remain on the flower during the flowering period. There are none to eleven, usually four to seven bracts , which are usually sepal-like, identical in shape and gradually change their width from wide to narrow towards the inside. There are usually ten stamens available.
The balding and woody legume is flat, oblong to boat-shaped and the upper end is beaked. The legume opens when ripe and the two fruit flaps twist. The seeds are flat.
Systematics and distribution
The genus Brachystegia was established in 1865 by George Bentham in Genera Plantarum , 1, p. 582. The genus Brachystegia belongs to the tribe Detarieae in the subfamily Caesalpinioideae within the family of the Fabaceae .
There are approximately 26 species of Brachystegia , all of which are native to tropical Africa:
- Brachystegia allenii Burtt Davy & Hutch.
- Brachystegia angustistipulata De Wild.
- Brachystegia bakeriana Burtt Davy & Hutch.
- Brachystegia bequaertii De Wild.
- Brachystegia boehmii deaf.
- Brachystegia bussei Harms
- Brachystegia cynometroides Harms
- Brachystegia eurycoma Harms
- Brachystegia floribunda Benth.
- Brachystegia glaberrima R.E.Fr.
- Brachystegia glaucescens Burtt Davy & Hutch.
- Brachystegia gossweileri Burtt Davy & Hutch.
- Brachystegia kennedyi Hoyle
- Brachystegia laurentii (De Wild.) Hoyle
- Brachystegia leonensis Burtt Davy & Hutch.
- Brachystegia lujae De Wild.
- Brachystegia manga De Wild.
- Brachystegia microphylla Harms
- Brachystegia mildbraedii Harms
- Brachystegia nigerica Hoyle & APDJones
- Brachystegia puberula Burtt Davy & Hutch.
- Brachystegia russelliae I.M.Johnst.
- Brachystegia spiciformis Benth.
- Brachystegia stipulata De Wild.
- Brachystegia tamarindoides Benth.
- Brachystegia taxifolia Harms
- Brachystegia utilis Burtt Davy & Hutch.
- Brachystegia wangermeeana De Wild.
use
The wood of the species Brachystegia cynometroides , Brachystegia eurycoma , Brachystegia leonensis and Brachystegia nigerica is used. Trade names are: naga, ekop-naga, bogdei, tebako, okwen, mendou or meblo.
swell
- Data sheet Brachystegia Benth. in the Flora of Zimbabwe .
- Datasheet at Legumes of the World at Royal Botanical Gardens Kew. (Section systematics)
- Data sheet at International Legume Database Information Service = ILDIS - LegumeWeb - World Database of Legumes , Version 10.38 from July 20, 2010 (Section Systematics)
Individual evidence
- ↑ First publication scanned at biodiversitylibrary.org .
- ^ Brachystegia at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 27, 2014.
- ^ A b Brachystegia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved January 27, 2014 ..
- ↑ Data sheet from Legumes of the World from Royal Botanical Gardens Kew. ( Memento of the original from January 19, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Last accessed on January 27, 2014
- ↑ Species of the genus Brachystegia at LegumeWeb (ILDIS), Version 10.1 from November 1, 2005 .
- ^ HG Richter, MJ Dallwitz: Brachystegia in commercial timber from DELTA.
