Diplorhynchus condylocarpon
| Diplorhynchus condylocarpon | ||||||||||||
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Diplorhynchus condylocarpon |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Diplorhynchus | ||||||||||||
| Welw. ex Ficalho & Hiern | ||||||||||||
| Scientific name of the species | ||||||||||||
| Diplorhynchus condylocarpon | ||||||||||||
| Garbage.Arg. | ||||||||||||
Diplorhynchus condylocarpon is the only kind of the plant genus Diplorhynchus within the family of the dog poison plants (Apocynaceae). It iswidespreadin tropical and southern Africa.
description
Vegetative characteristics
Diplorhynchus condylocarpon grows as a deciduous shrub or small tree and forms a white or yellow milky sap . The hanging branches are usually covered with paler lenticels , the rough bark is streaked with deep cracks. The wood is whitish yellow to pale orange. The elliptical, pointed leaves are glossy yellow-green and often long-stalked . Mostly they are arranged opposite one another. Their pale yellow central and side ribs are clearly visible.
Inflorescence, flower, fruit and seeds
The flowering period lasts from September to December. At the branch ends, Diplorhynchus condylocarpon forms a thyrsus with terminal flowers in loose racemose inflorescences .
Apart from the partly slightly irregular egg-shaped, pointed, overgrown sepals , the white to cream-colored, sweet-scented flowers are radial symmetry . Usually the corolla tube , near the center of which the stamens are located, is much longer than the calyx, almost cylindrical and thickened in the upper half. The anthers are triangular, tapering to a point and arrow-shaped at the base. The ovary consists of two at the base coalesced carpels . In each carpel there are four ovules on an adaxial placenta .
The fruit is composed of two elongated follicles that are dark brown on the outside and speckled with many paler lenticels and open on the adaxial side. The seeds are compressed laterally, elongated and provided with long wings at the tip. The wings of the two outer seeds are directed towards the base, those of the two central seeds towards the tip of the fruit.
Occurrence
The distribution area of Diplorhynchus condylocarpon extends over the Democratic Republic of the Congo , Tanzania , Angola , Malawi , Mozambique , Zimbabwe , Zambia , Botswana , Namibia and South Africa . Diplorhynchus condylocarpon occurs in open, dry woodland and on stony hills.
Synonyms
Synonyms for Diplorhynchus condylocarpus Muell.Arg. are Aspidosperma condylocarpon garbage. Arg. , Diplorhynchus angustifolia Stapf , Diplorhynchus mossambicensis Benth. ex Oliv. , Diplorhynchus poggei K. Schum. , Diplorhynchus psilopus Welw. ex Ficalho & Hiern , Diplorhynchus welwitschii Rolfe and Neurolobium cymosum Baill.
Food plant
Diplorhynchus condylocarpon serves as food for the caterpillars of the hawkmoth species Nephele comma .
swell
- Diplorhynchus at Flora Zambesiaca ( Kew ; English)
- Diplorhynchus condylocarpon at Flora Zambesiaca (English)
- Diplorhynchus condylocarpon at Flora of Mozambique (English)
Individual evidence
- ↑ Distribution (countries) at Kew (English)
