Carpinus viminea
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Carpinus viminea |
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| Carpinus viminea | ||||||||||||
| Wall. ex Lindl. |
Carpinus viminea is a medium-sized tree from the genus of hornbeams ( Carpinus ) with brown, bare branches and leaves that are bare except for the veins. The natural range of the species is in India, China and Indochina .
description
Carpinus viminea is a 10 to 20 meter high tree with dark gray bark . The branches are brown and bare. The leaves have a rarely from 1, usually 1.5 to 3 centimeters long, glabrous or rarely sparsely downy-haired stalk. The leaf blade is 6 to 11 centimeters long, 3 to 5 centimeters wide, elliptical, oblong or ovate-lanceolate, with a pointed, pointed or tapered end, more or less heart-shaped, more rarely rounded-wedge-shaped or more or less wedge-shaped base and a double spiked tip or bristly sawn leaf margin. Twelve to 15 pairs of nerves are formed. The upper side of the leaf is bare, the underside has sparsely shaggy hair along the veins and sometimes has axillary whiskers.
The female inflorescences are 5 to 15 centimeters long with a diameter of 2.5 to 3 centimeters. The inflorescence axis is 1.5 to 4 inches long, thin and sparsely downy-haired. The bracts are almost bare, 1.5 to 2.5, rarely 3 inches long, half-ovoid-lanceolate, unequal three-lobed with a pointed or blunt end. The middle lobe is half-ovoid-lanceolate or oblong, straight or somewhat sickle-shaped. The outer leaf margin is roughly serrated with a 3 millimeter long, egg-shaped basal lobe; the inner part is entire with a 3 to 3.5 millimeter long, rolled up basal flap. The leaves have four first-order veins. The cores arranged like a net are protruding. As fruits 3 to 4 mm long, 2.5 to 3.5 millimeters wide, broadly ovate significantly ribbed, hairy villous at the top and otherwise bald Nüsschen formed, they are sparsely covered with resin glands. Carpinus viminea flowers from April to June, the fruits ripen from July to September.
The number of chromosomes is 2n = 16.
Occurrence and location requirements
The natural range is in Bhutan, Myanmar, Nepal, Thailand, Vietnam, in India in the provinces of Assam , Himachal Pradesh , Jammu and Kashmir , Sikkim and Uttar Pradesh and in the Chinese provinces of Anhui and Fujian , in the north of Guangdong , in Guangxi , Guizhou , Hubei , Hunan , Jiangsu , Jiangxi , Sichuan , Yunnan , Zhejiang and in Tibet . The species grows in subtropical forests at an altitude of 400 to 2000 meters.
Systematics
Carpinus viminea is a species of the hornbeam genus ( Carpinus ). This is in the family of birch plants of the subfamily (Betulaceae) coryloideae assigned (Coryloideae). The species was in 1830 by John Lindley scientifically valid first described . The genus name Carpinus comes from Latin and was already used by the Romans for the hornbeam. The specific epithet viminea comes from Latin and means "rod-shaped".
There are two varieties :
- Carpinus viminea var. Chiukiangensis Hu with regularly double-bristle serrated leaf margin and long tailed leaf tip. The distribution area is in forests in valleys at an altitude of about 2000 meters in Tibet and in the northwest of Yunnan.
- Carpinus viminea var. Viminea with regularly or irregularly double prickly sawn leaf margin and pointed, pointed or tailed leaf tip. The distribution area is in forests at heights of 400 to 900 meters.
proof
literature
- Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 4: Cycadaceae through Fagaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1999, ISBN 0-915279-70-3 , pp. 294 (English).
Individual evidence
- ↑ a b c d e f g Pei-chun Li, Alexei K. Skvortsov: Carpinus viminea , in the Flora of China , Volume 4, p. 294
- ↑ a b Carpinus viminea. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed July 30, 2012 .
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 130
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 683
- ↑ Pei-chun Li, Alexei K. Skvortsov: Carpinus viminea var. Chiukiangensis , in the Flora of China , Volume 4, p. 294
- ↑ Pei-chun Li, Alexei K. Skvortsov: Carpinus viminea var. Viminea , in the Flora of China , Volume 4, page 294
Web links
- Carpinus viminea. In: The Plant List. Retrieved July 30, 2012 .