Carpinus fargesiana
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Carpinus fargesiana is a medium-sized tree from the genus of hornbeams ( Carpinus ) with dark brown, sparsely shaggy hairy branches and shaggy hairy leaf tops in young leaves. The natural range of the species is in China.
description
Carpinus fargesiana is a tree up to 20 meters high with gray bark . The twigs are dark brown and sparsely hairy with shaggy hair. The leaves have a 6 to 10 millimeter long, thin and sparsely shaggy stalk. The leaf blade is 2.5 to 7.5, rarely 8 inches long and 2 to 2.5 inches wide, ovate-lanceolate, ovate-elliptical, elliptical, oblong or rarely narrowly lanceolate or narrowly elongated, pointed or long acuminate, with rounded or more or less heart-shaped base and an irregularly double-prickly serrated leaf margin. 12 to 16 pairs of nerves are formed. The upper side of the leaf is initially sparsely hairy and later bald, the underside is hairy along the leaf veins and has armpit whiskers on the side veins.
The female inflorescences are 4 to 7 centimeters long with a diameter of 2.5 to 3 centimeters. The inflorescence axis is 1 to 1.5 inches long and sparsely hairy shaggy. The bracts are 1.3 to 1.5 inches long, and 6 to 8 millimeters wide, half-egg-shaped to half-egg-shaped and pointed. The leaves have five first-order veins and are shaggy hairy along the reticulated veins. The outer leaf margin is irregularly serrated-serrated or lobed-serrated, the inner part has entire margins with a rolled-up ear at the base of the leaf. The fruits are about 3 millimeters long and 3.5 millimeters wide, ribbed and, except for the sparsely shaggy hairy tip, bare nuts that can sometimes be sparsely covered with resin glands. Carpinus fargesiana flowers from May to June, the fruits ripen from July to September.
Occurrence and location requirements
The natural distribution area is in China in the south of the Gansu province , in the west of Henan and Hubei , in the south of Shaanxi and in Sichuan in temperate forests in mountain valleys and on river banks at 1000 to 2600 meters altitude.
Systematics
Carpinus fargesiana 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 by Hubert Winkler in 1914 . The genus name Carpinus comes from Latin and was already used by the Romans for the hornbeam.
There are two varieties :
- Carpinus fargesiana var. Fargesiana with 3.5 to 7.5 centimeters long and 2 to 2.5 centimeters wide, ovate-lanceolate, ovate-elliptical, elliptical or oblong leaves.
- Carpinus fargesiana var. Hwai (Hu & WC Cheng) PC Li with 7 to 8 centimeters long and 2 to 2.2 centimeters wide, narrow-lanceolate or narrow-elongated leaves. The distribution area of the variety is in Lichuan in the west of Hubei and in the former Wanxian in the east of Sichuan (today as Wanzhou part of Chongqing ).
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. 297 (English).
Individual evidence
- ↑ a b c d e Pei-chun Li, Alexei K. Skvortsov: Carpinus fargesiana , in the Flora of China , Volume 4, p. 297
- ↑ a b Carpinus fargesiana. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed July 21, 2012 .
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 130
- ↑ Pei-chun Li, Alexei K. Skvortsov: Carpinus fargesiana var. Fargesiana , in the Flora of China , Volume 4, p. 297
- ↑ Pei-chun Li, Alexei K. Skvortsov: Carpinus fargesiana . Var Hwai , in the Flora of China , Volume 4, page 297
Web links
- Carpinus fargesiana. In: The Plant List. Retrieved July 21, 2012 .