Ostrya chinensis

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Ostrya chinensis
Systematics
Eurosiden I
Order : Beech-like (Fagales)
Family : Birch family (Betulaceae)
Subfamily : Hazelnut family (Coryloideae)
Genre : Hop beech ( Ostrya )
Type : Ostrya chinensis
Scientific name
Ostrya chinensis
IMTurner

Ostrya chinensis (Syn .: Ostrya multinervis ) is a tree belonging to the hop beech genus( Ostrya ). The natural range of the species is in China.

description

Ostrya chinensis is a tree up to 25 meters high with dark gray-brown, torn bark . The twigs are reddish-brown and hairy sparsely pressed. The leaves have a 4 to 7 millimeter long, tightly haired stalk. The leaf blade is 4.5 to 12 inches long and 2.5 to 4.5 inches wide, ovate-lanceolate to oblong-lanceolate, with a tail or long pointed tip, more or less rounded, heart-shaped or broadly wedge-shaped base and irregularly bristly sawn leaf edge. 18 to 25 pairs of nerves are formed at a distance of 3 to 4 millimeters. The underside of the leaf is densely hairy with distinct axillary beards, the upper side is densely hairy along the median nerve, otherwise finely hairy to bald.

Female inflorescences are erect, racemose and 3 to 6 inches long. The inflorescence axis is 1.5 to 2.5 inches long and hairy sparsely pressed. The bracts are 1 to 1.5 millimeters long, 5 to 6 millimeters wide, narrowly elliptical, sack-shaped, membranous and hairy, reticulate, pointed with a rounded base and bristly leaf margin. The nuts are light brown, 5 to 7 millimeters long with a diameter of 2 to 3 millimeters, egg-shaped-elliptical, ribbed, glabrous and with shaggy hair only at the tip. Ostrya multinervis flowers from May to June, the fruits ripen from July to August.

Occurrence

The natural range of the species is in China in the province of Guizhou , in the south of Hunan , in Jiangsu , in the southeast of Sichuan and in Zhejiang . Ostrya chinensis grows in mixed forests at heights of 600 to 1300 meters.

Systematics

Ostrya chinensis is a species of the hop beech genus ( Ostrya ). This is in the family of birch plants of the subfamily (Betulaceae) coryloideae assigned (Coryloideae). The species was first scientifically described by Alfred Rehder in 1938 . The generic name Ostrya comes from Latin and was already used by the Romans for the hop beech. The earlier specific epithet multinervis refers to the high number of leaf veins.

However, the first description by Alfred Rehder in 1938 was found to be invalid, as there was an older publication of the same name, published as Ostrya multinervis Ettingsh. 1868 for a fossil. The current name was described by Turner in 2014 as Ostrya chinensis I.M. Turner .

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. 301 (English).
  • Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 (reprint from 1996).

Individual evidence

  1. ↑ a b c Rafaël Govaerts (Ed.): Ostrya. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved September 18, 2018.
  2. ↑ a b c d Pei-chun Li, Alexei K. Skvortsov: Ostrya multinervis. In: Flora of China. Volume 4, p. 301.
  3. ↑ Ostrya. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed June 2, 2012 .
  4. ↑ To be precise: Etymological dictionary of botanical plant names. Pp. 446-447.

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