Neobalanocarpus heimii
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Neobalanocarpus heimii |
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| Scientific name of the genus | ||||||||||||
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| PS Ashton | ||||||||||||
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| Neobalanocarpus heimii | ||||||||||||
| ( King ) PSAshton |
Neobalanocarpus heimii is a tree in the wing fruit family from Thailand and Malaya .
description
Neobalanocarpus heimii grows as a very large tree to a height of over 65 meters. The trunk diameter reaches more than 5.3 meters. Moderate buttress roots are formed. The bark is brown-gray and scaly to flaky strips, but in very old trees it is only slightly furrowed. The tree carries a resin , dammar . The tree is over 1300 years old.
The simple, short-stalked, entire, pointed to tailed, leathery, bare leaves are alternate. They are 7-17 inches long and 2.3-5 inches wide and the petiole is 0.5-1 inches long. They are egg-shaped, -lanceolate to obovate, -lanceolate and are partly curved somewhat sickle-shaped. The young leaves are bronze in color. The stipules are sloping.
Small axillary or terminal, little-flowered panicles are formed. The small, cream-colored or green-yellowish, hermaphroditic flowers are double- coated . The somewhat unequal calyx and elliptical petals are hairy on the outside and slightly roofed. There are 15 short stamens , the elongated anthers have a small, filamentous appendage at the tip. The bald ovary is constantly above, with a tapered, thread-like stylus .
It forms 5.5 centimeters long, 2.5 centimeters thick, briefly pointed and egg-shaped, greenish, acorn-like and somewhat shiny nuts with a permanent, enlarged, roof-shaped, cup-shaped and brownish calyx about 2 centimeters long and small remnants of handles. The nuts open loculicidal three-lobed during germination.
Taxonomy
The first description of Basionyms Balanocarpus heimii in 1893 by King George in J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 62: 133. The division into the new genus Neobalanocarpus to Neobalanocarpus heimii took place in 1982 by Peter Shaw Ashton in Flora Malesiana Ser. I, Vol. 9, 1982: 388. Another synonym is Balanocarpus wrayi King .
use
The very heavy, hard and very durable but difficult to treat wood is in great demand, it is known as changal . The tree is therefore considered endangered.
literature
- CGGJ van Steenis: Flora Malesiana. Ser. I, Vol. 9, 1982, pp. 388f, online at biodiversitylibrary.org.
- The CABI Encyclopedia of Forest Trees. CABI, 2013, ISBN 978-1-78064-236-9 , p. 292 f.
- J. Gérard, D. Guibal, S. Paradis, J.-C. Cerre: Tropical Timber Atlas. Éditions Quæ, 2017, ISBN 978-2-7592-2798-3 , p. 225 ff, limited preview in Google Book Search.
- K. Ogata, T. Fujii, H. Abe, P. Baas: Identification of the Timbers of Southeast Asia and the Western Pacific. Kaiseisha Press, 2008, ISBN 978-4-86099-244-6 , pp. 88 f.
Web links
- Neobalanocarpus heimii at Useful Tropical Plants.
- Neobalanocarpus heimii near Trees of Tropical Asia (pictures).
- Chengal (Neobalanocarpus heimii) at Rainforest Journal, October 20, 2013.