Catophractes alexandri
| Catophractes alexandri | ||||||||||||
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Catophractes alexandri |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Catophractes | ||||||||||||
| D. Don | ||||||||||||
| Scientific name of the species | ||||||||||||
| Catophractes alexandri | ||||||||||||
| D. Don |
Catophractes alexandri is the only species of the genus Catophractes inthe trumpet tree family (Bignoniaceae). It is common in subtropical, southern Africa .
description
Vegetative characteristics
Catophractes alexandri is a shrub or small tree with spiked trunks and hairs made up of dense, gray, woolly trichomes . The leaves are opposite or often in clusters and are not divided.
Generative characteristics
The lateral or terminal, racemose inflorescences contain bracts and a few flowers .
The hermaphrodite flowers are zygomorphic and five-fold with a double flower envelope . The calyx is tubular, slightly incised on one side and decorated with five (rarely six) thread-shaped lobes. The crown is white, bell-shaped and slightly two-lipped from five (or rarely six or seven) splayed lobes. The five (rarely six or seven) stamens possess the crown extends above, hairless dust bag , however, fused their counters at the top, the bottom freestanding and are parallel. The ovary is long and contains only a few ovules . It is enclosed by a cup-shaped flower base .
The calyx can be persistent on the elliptical capsule fruits , which are flattened parallel to the septum . The capsule flaps are thick, woody, and warty. The edge of the flat seeds is surrounded by a paper-like wing.
distribution
Catophractes alexandri is common in subtropical, southern Africa . Its distribution area includes Angola , Namibia , Botswana and South Africa .
Systematics
The genus Catophractes was established in 1839 with the first description of the species Catophractes alexandri by David Don in Proceedings of the Linnean Society of London , 1, page 4.
Catophractes alexandri is the only species of the genus Catophractes that belongs to the tribe Tecomeae within the family Bignoniaceae .
literature
- E. Fischer, I. Theisen, LG Lohmann: Bignoniaceae . In: Klaus Kubitzki, Joachim W. Kadereit (Eds.): The Families and Genera of Vascular Plants . Flowering Plants - Dicotyledons: Lamiales (except Acanthaceae including Avicenniaceae) . tape 7 . Springer Science & Business Media, 2004, ISBN 978-3-540-40593-1 , pp. 16 ( Catophractes on p. 16 in the Google book search).
Individual evidence
- ↑ a b Rafaël Govaerts (Ed.): Catophractes. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved December 19, 2019.
- ↑ Catophractes alexandri at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed December 19, 2019.
