Tetraberlinia tubmaniana
| Tetraberlinia tubmaniana | ||||||||||||
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| Scientific name | ||||||||||||
| Tetraberlinia tubmaniana | ||||||||||||
| J.Léonard |
Tetraberlinia tubmaniana is a large tree in the legume family, from the subfamily of the carob family, from a limited area in West Africa , mainly from Liberia to Sierra Leone and the adjacent Ivory Coast .
description
Vegetative characteristics
Tetraberlinia tubmaniana grows as an evergreen tree up to 30–40 meters high . The trunk diameter can be up to 1.25 meters. The roots are at the bottom of the trunk, up to 50 centimeters high, partly thickened, swollen ( root approaches ). The bark is grayish-brown and relatively smooth and easily cracked with age.
The alternate and short-stalked leaves are pinnate in pairs with mostly 8-14 leaflets . The leaves with fine-haired, slightly runny rachis are up to 13 centimeters long, the short, thick petiole is up to 5–6 millimeters long. The leathery, shiny and egg-shaped to elliptical or lanceolate, sometimes slightly sickle-shaped and entire-margined leaflets are sessile and up to 5–8 inches long and up to 2.5–3.5 inches wide. They are lighter on the underside and almost bare and rounded to pointed with pinnate veins . Glands may be present on the underside of the leaves. The smaller stipules fall off early.
Generative characteristics
Terminal or axillary, velvety, shorter and short-stalked panicles with small, sloping bracts are formed. The short-stalked, hermaphrodite and fragrant flowers are five-fold with a double flower envelope. The short flower stalk is hairy and the flowers have two fine-haired bracts on the small flower cup . The 4 unequal, almost free, velvety-haired, greenish-white sepals sit on the inside bristly flower cup. A sepal is slightly larger and consists of two fused ones. The 5 unequal, almost bare petals are yellowish to white. There are 4 short, narrow-elongated petals and a much larger, short- nailed petal, with a slightly spatula-shaped and partly ciliated plate . There are 10 protruding, white-pink stamens, 9 of which are fused at the base and one is free. The medium-sized, unilocular and hairy elongated ovary is stalked, with a longer, thin stylus with a small, capitate scar .
Woody-leathery, almost bare, brown and flat, elliptical and pointed legumes with short wings at a seam are formed. You have a noticeable, not entirely continuous, central vein. They are up to 10–13 centimeters long and up to 4–5 centimeters wide and contain 1–3 round, flat seeds. The slightly shiny, brown seeds with a thin seed coat are 2–2.5 centimeters in size.
Systematics
It was first described as Tetraberlinia tubmaniana in 1965 by Jean Joseph Gustave Léonard in Bull. Jard. Bot. État Bruxelles 35: 98. It was misdescribed as Hymenostegia gracilipes auct. non. Hutch. & Dalz. : Keay 1958: 464. The epithet is named after William S. Tubman , who was long president of Libera.
literature
- AG Voorhoeve: Liberian high forest trees. Dissertation, Centrum voor landbouwpublikaties en landbouwdocumentatie; Center for Agricultural Publications and Documentation, Wageningen University, 1965, pp. 212-217, online (PDF; 26 MB), at Wageningen University WUR E-depot, accessed on April 27, 2019.
- JJ Wieringa: Monopetalanthus exit. A systematic study of Aphanocalyx, Bikinia, Icuria, Michelsonia and Tetraberlinia (Leguminosae, Caesalpinioideae). Dissertation, Wageningen Agricultural University, 1999, ISBN 978-90-5808-121-6 , pp. 287-292, online (PDF; 30 MB), from Wageningen University WUR E-depot, accessed on April 27, 2019.
Web links
- Tetraberlinia tubmaniana at PROTA.