Altingia cambodiana
| Altingia cambodiana | ||||||||||||
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| Altingia cambodiana | ||||||||||||
| Lecomte |
Altingia Cambodiana is a small evergreen deciduous tree species from the family of Altingiaceae within the order of saxifrage-like (Saxifragales). It is endemic to Cambodia .
description
Vegetative characteristics
The tree reaches a height of 8 to 10 m and a trunk diameter of up to approx. 30 cm. The branches are bare, have a dark bark and are covered with protruding lenticels . The helically arranged foliage leaves have a thick, 1–2 cm long, furrowed, shaggy, hairy petiole . The simple and undivided, pinnate leaf blade is ovate to elliptical and has a length of 8 to 10 cm and a width of 4 to 5 cm. It has a rounded to almost heart-shaped base and is rounded or pointed at the front. The blade is leathery and shiny on the top. The 7–8 pairs of lateral nerves branch off from the midrib at approximately a 60 degree angle. They protrude very clearly on the underside and are curved and branched towards the edge. The spreading edge is whole or indistinctly notched and rolled over.
Generative characteristics
Nothing is known about the structure of the inflorescences and flowers .
The spherical, woody, 7–8 cm long stalked fruit clusters are 1–2 cm wide. The individual fruits are twofold, lignified at the base, weakly hairy capsule fruits , which are surrounded by the enlarged and hardened disc lobes and open with two two-part flaps. The pen are no longer present in the fruit. Each fruit compartment contains about six brown, wrinkled, wingless seeds about 1 mm long . These are pinned to the septum. There is little endosperm .
distribution and habitat
Altingia cambodiana occurs only in the elephant mountains in southern Cambodia . The species grows on moist soil at the edge of waterfalls.
Taxonomy and systematics
The species was described in 1924 by the French botanist Henri Lecomte on the basis of a collection of the plant collector Eugène Poilane . The first description is published in a paper dealing with plant species from the Tonkin mountains in northern Vietnam . Recently, the species as is Liquidambar Cambodiana (Lecomte) Ickert-Bond & J.Wen to Liquidambar asked.
etymology
The specific epithet cambodiana refers to the occurrence of this species in Cambodia. The genus Altingia is named in honor of Willem Arnold Alting (1724-1800), the governor-general of the Dutch East Indies at the time when the first descriptor Francisco Noroña visited Java .
use
The wood is used to make tool handles.
annotation
- ↑ In the first description ( Lecomte 1924 ) a length of 1 mm is given for the seeds, in the Flore du Cambodge, du Laos et du Vietnam this information is missing. Since functional seeds are significantly larger in the other species of the genus with a length of 4.4 to 10.5 mm (see Ickert-Bond SM, Pigg KB, Wen J. 2007: Comparative infructescence morphology in Altingia (Altingiaceae) and discordance between morphological and molecular phylogenies . American Journal of Botany 94: 1094–1115. - doi : 10.3732 / ajb.94.7.1094 ), the information in the first description may refer to sterile seeds. These are usually found in large numbers in the Altingia species.
swell
- Lecomte H. 1924: Hamamélidacées nouvelles du Haut-Tonkin. Bulletin du Muséum National d'Histoire Naturelle 30: 390–393. - online
- Tardieu blot M.-L. 1965: Hamamelidaceae. In: Flore du Cambodge, du Laos et du Vietnam. Fasc. 4. Muséum National d'Histoire Naturelle, Paris, pp. 75-116.
Individual evidence
- ↑ Lecomte H. 1924 , p. 391. - Online
- ^ Holotype of Altingia cambodiana. In: Bases de données de collections SONNERAT. Muséum National d'Histoire Naturelle, Paris, accessed March 3, 2016 .
- ↑ Rafaël Govaerts (Ed.): Liquidambar - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on September 12, 2018.
- ↑ Hayne FG 1830: Faithful representation and description of the plants used in medicine. Vol. 11. Berlin. - Preview in Google Book Search