Erismadelphus exsul
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Illustration of Erismadelphus exsul |
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| Erismadelphus exsul | ||||||||||||
| Mildbr. |
Erismadelphus exsul is a tree in the Vochysiaceae family from central to western Africa .
description
Erismadelphus exsul grows as an evergreen tree to over 40 meters high. The trunk diameter reaches over 1 meter. Usually narrow, smaller buttress roots or root run-ins are formed. The greyish to red-brown bark is smooth and rough and scaly when old.
The simple, short-stalked and leathery leaves are opposite. The short, flattened, slightly hairy, thick petiole is 0.5–1.5 centimeters long. The entire, obovate to elliptical leaves are about 7–22 inches long and 4–11 inches wide. At the top they are rounded to pointed, on the underside they are sometimes hairy on the veins and on the top they are bald. The base of the blades is rounded to wedge-shaped or narrow-heart-shaped. The stipules are reduced to small warts.
Terminal, narrow and multi-flowered, somewhat rusty hairy panicles with small doldy groups are formed. The small, hermaphrodite and sessile, white flowers are five-fold with a double flower envelope . It is a larger, more durable and heart-shaped to kidney-shaped support sheet . The 7.5 millimeter long, greenish-yellow, slightly uneven sepals are somewhat rusty on the outside and one is spurred. The free, somewhat longer and fine-haired, nailed petals are fine-haired with an elliptical to obovate plate . There is only a very short stamen on the ovary and up to 3 small, club-shaped staminodes. The unilocular ovary is (semi) upper constant, sideways, with short pencil .
There are wings fruits , formed with the leaf enlarged sepals. The wings are unequal in size, three are larger, up to 8 inches long and 2.5 inches wide. The small, lonely and brownish nut is up to 8 millimeters in size.
Taxonomy
It was first described in 1913 by Gottfried Wilhelm Johannes Mildbraed in Bot. Jahrb. Syst. 49: 549. A synonym is Erismadelphus baudonii A.Chev.
use
The medium-weight, but not very durable and difficult to treat wood is known as Angoa .
The bark is used medicinally.
literature
- Quentin Meunier, Carl Moumbogou, Jean-Louis Doucet: Les arbres utiles du Gabon. Presses Agronomiques de Gembloux, 2015, ISBN 978-2-87016-134-0 , p. 301 f, limited preview in the Google book search.
- J. Gérard, D. Guibal, S. Paradis, J.-C. Cerre: Tropical Timber Atlas. Éditions Quæ, 2017, ISBN 978-2-7592-2798-3 , p. 111 ff, limited preview in the Google book search.
Web links
- Erismadelphus exsul at PROTA.
- Erismadelphus exsul at Vascular Plants of Korup National Park.