Halleria (genus)
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The Halleria is a plant genus that the family of stilbaceae is attributed. It includes four types .
description
Halleria are hairless shrubs or small trees . The stems are erect, four-sided to winged. The stalked, opposite, stem-like leaves are ovate or elliptical to circular. Towards the front they are pointed with an almost entire to toothed edge.
The flowers are clearly stalked. The chalice is three to five parts, but mostly four parts. It is almost round or cup-shaped. The crown is red to orange in color, bell-shaped and almost radially symmetrical, the crown hem is four to five parts and divided into two lips. The corolla tube is curved or straight, widened in the upper part or funnel-shaped. The four stamens are above the crown. The ovary is ovoid, the scar is little head-shaped or bilobed.
The fruits are berries , they contain a large number of indented, narrowly winged seeds .
Systematics and occurrence
The genus Halleria was named by Carl von Linné in honor of the Swiss polymath Albrecht von Haller .
Four species are distinguished within the genus, two of which occur in tropical and southern Africa and two in Madagascar .
- Halleria elliptica L. - South Africa, Malaŵi
- Halleria ligustrifolia Baker - Madagascar ( Syn.Halleria ilicifolia Bonati , Halleria pendula Bonati , Halleria tetragona Baker )
- Halleria lucida L. - South Africa, Malaŵi, Tanzania, Uganda (Syn. Halleria abyssinica Jaub. & Spach )
- Halleria ovata Benth. - South Africa
literature
- E. Fischer: Scrophulariaceae . In: Klaus Kubitzki, Joachim W. Kadereit (eds.): Flowering Plants, Dicotyledons: Lamiales (except Acanthaceae Including Avicenniaceae) , Springer Verlag, 2004, ISBN 978-3-540-40593-1 , p. 427.
