Carpinus rupestris
| Carpinus rupestris | ||||||||||||
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| Scientific name | ||||||||||||
| Carpinus rupestris | ||||||||||||
| A. Camus |
Carpinus rupestris is a small tree from the genus of hornbeams ( Carpinus ) with gray, shaggy hairy branches. The species often grows on stony ground. The natural range of the species is in China.
description
Carpinus rupestris is a 2 to 4 meter high tree with dark gray bark . The branches are blackish gray and bare, the twigs are gray and have white or brown shaggy hairs. The leaves have a 1 to 3 millimeter long, white or brown shaggy stem. The almost leathery leaf blade is 4 to 5 centimeters long, 1.5 to 2 centimeters wide, lanceolate or oblong-lanceolate, with a pointed end, more or less rounded or broadly wedge-shaped base and a simply finely serrated leaf margin. 14 to 17 pairs of nerves are formed. The upper side of the leaf is sparsely hairy with shaggy hair along the midrib, otherwise bald, the underside is densely hairy white or brown shaggy.
The female inflorescences are 2 to 3 centimeters long with a diameter of 1 to 1.2 centimeters. The inflorescence axis is about 1 centimeter long and hairy densely shaggy. The bracts are 9 to 10 millimeters long, 3 to 5 millimeters wide, half-egg-shaped or rounded with a pointed end. The outer leaf margin is finely and closely serrated without a basal lobe, the inner part is entire, with a small, rolled-up basal auricle . The leaves have five first-order veins. The upper side is downy-haired, the underside is downy-haired and long-haired along the reticulated leaf veins. As fruits about 3 millimeters long, egg-shaped, ribbed and thick shaggy hairy nutlets formed. Carpinus rupestris flowers from May to June, the fruits ripen from June to August.
Occurrence and location requirements
The natural range is in the west of the Chinese Autonomous Region Guangxi , in the southwest of Guizhou and in the southeast of Yunnan . The species grows in thickets on rocky ground at an altitude of 1100 to 1700 meters.
Systematics
Carpinus rupestris 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 first scientifically described in 1929 by the French botanist Aimée Antoinette Camus . The genus name Carpinus comes from Latin and was already used by the Romans for the hornbeam. The specific epithet rupestris is derived from the Latin word for "rock" and refers to the location on rocky ground.
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. 300 (English).
Individual evidence
- ↑ a b c d e Pei-chun Li, Alexei K. Skvortsov: Carpinus rupestris , in the Flora of China , Volume 4, p. 300
- ^ Carpinus. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed July 28, 2012 .
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 130
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 547
Web links
- Carpinus rupestris. In: The Plant List. Retrieved July 28, 2012 .