Breonadia salicina
| Breonadia salicina | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
_(14027810772).jpg)
Breonadia salicina |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name of the genus | ||||||||||||
| Breonadia | ||||||||||||
| Ridsdale | ||||||||||||
| Scientific name of the species | ||||||||||||
| Breonadia salicina | ||||||||||||
| ( Vahl ) Hepper & JRIWood |
_(14051121753).jpg)
Breonadia salicina is a tree in the red family from tropical to southern Africa , Madagascar and the Arabian Peninsula . It is the only species in the genus Breonadia .
description
Vegetative characteristics
Breonadia salicina grows as an evergreen and fast-growing tree up to 20 meters high, the brown-grayish, relatively smooth bark is cracked to scaly. The trunk diameter can reach 80 centimeters or more.
The tufted, whorled, simple and leathery, somewhat stiff leaves are at the ends of the branches. The short-stalked, rounded to pointed and bare leaves are entire and lanceolate to eilanceolate . The leaves are lighter underneath and are up to 10–30 centimeters long and 2–9 centimeters wide. The nerve is pinnate with a lighter, underside protruding central artery. They are small, two-column and interpetiolare and falling Nebenblätter vorhanden.¨
Generative characteristics
The inflorescences are usually long-stalked, axillary or terminal, small and multi-flowered, spherical and individually appearing heads . They measure up to about 2.5 centimeters in diameter and have, under it, about in the middle of the peduncle, two to four, membranous bracts . The small, fragrant and hermaphrodite, sedentary and five-fold flowers have a double flower envelope . The flowers are many, very small and narrow bracts surrounded. The hairy calyx is basal, briefly fused with five free lobes. The greenish to reddish-purple to yellow, externally hairy corolla is funnel-shaped with five shorter, free lobes at the top. The stamens with short stamens and arrow-shaped anthers sit at the top of the corolla tube. The two-chamber ovary is inferior with a long, straight and whitish stylus with capitate, lobe-shaped and greenish scar .
Many small, brownish and hairy, bilobed and septicidal capsule fruits up to about 3.5-4.5 millimeters long , with four elongated, pointed appendages, which contain some seeds, are formed in the rounded heads ( fruit associations , false fruits ) . The small seeds are about 2–3 millimeters long.
Systematics
The genus Breonadia was established in 1975 by Colin Ernest Ridsdale in Blumea 22: 549, the first description of the Basionyms Nerium salicinum was in 1791 by Martin Vahl in Symbolae Botanicae 2:45, the reallocation to Breonadia salicina in a new genus took place in 1982 by Frank Nigel Hepper and John Richard Ironside Wood in Kew Bull. 36: 860. Some synonyms are known.
use
The bark , leaves and roots are used medicinally. Wood is also used for various applications.
literature
- D. Brisdon, B. Verdcourt: Flora of Tropical East Africa. Rubiaceae, Part 2, CRC Press, 1988, ISBN 90-6191-337-3 , pp. 445 f.
- Breonadia salicina at PROTA.
Web links
- Breonadia salicina at Useful Tropical Plants.
- Breonadia salicina at PlantZAfrica.
- Breonadia salicina . In: S. Dressler, M. Schmidt, G. Zizka (Eds.): African plants - A Photo Guide. Senckenberg, Frankfurt / Main 2014.
- Breonadia salicina on treesa.org, accessed April 21, 2019.
Individual evidence
- ↑ Rafaël Govaerts (ed.): Breonadia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Accessed June 1, 2020.
- ↑ Breonadia salicina at KEW Science.