Koompassia excelsa
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Koompassia excelsa |
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| ( Becc. ) Deaf. |
Koompassia excelsa is a tree in the legume family from the carob subfamily. It occurs in Southeast Asia in Borneo , Malaya , the Philippines , Sumatra and Thailand .
description
Koompassia excelsa grows as a very large, deciduous tree up to 75–85 meters high. The trunk diameter reaches 100-290 centimeters. Meter-high and wide buttress roots are formed. The very smooth, slippery bark is grayish.
The short-stalked foliage leaves are alternately pinnate with 7–17 leaflets . The very short-stalked, entire-margined leaflets are egg-shaped, lanceolate to elliptical and at the tip rounded to pointed or sometimes indented. The 6–7.5 cm long rachis, the 1.5 cm long leaf and leaflet stalks are somewhat hairy. The leaflets are 3–4.2 inches long, almost glabrous on the top and velvety hairy on the underside. The small stipules are sloping.
The many-flowered, terminal or axillary and pyramidal, paniculate inflorescences are hairy. The mostly short-stalked, hermaphrodite and five-fold, white, very small flowers are double- coated . The small bracts and bracts are sloping. The short overgrown and five-lobed calyx is somewhat hairy on the outside, the petals are bare. There are 5 short stamens and a medium-sized, almost bald ovary with a very short style and meticulous scar present.
Very flat, winged and non-opening, red-brown, almost bald as well as solitary, elongated to obovate wing nuts (samara) with a paper wing all around are formed. You are with wings 8-12.5 inches long and 2-3.5 inches wide.
Taxonomy
The first description of Basionyms Abauria excelsa was made in 1877 by Odoardo Beccari in Malesia 1: 169. The re-allocation to the genus Koompassia was made in 1892 by Paul Hermann Wilhelm Taubert in Ber. German. Bot. Ges. 10: 641. Another synonym is Koompassia parvifolia Prain .
use
The slightly spattering, quite heavy and moderately resistant, hard and easily treatable wood is known as Tualang , Mangaris , Manggis , Mengaris and Tapang .
literature
- The CABI Encyclopedia of Forest Trees. CABI, 2013, ISBN 978-1-78064-236-9 , pp. 259 f.
- K. Ogata, H. Abe, T. Fujii, P. Baas: Identification of the Timbers of Southeast Asia and the Western Pacific. Kaiseisha Press, 2008, ISBN 978-4-86099-244-6 , pp. 1, 206 f.
Web links
- Koompassia excelsa on asianplant.net.
- Koompassia at PROTA.