Chinese storax tree
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| Diels |
The Chinese storax tree ( Styrax hemsleyanus ) is a small tree with white flowers from the storax family (Styracaceae). The natural range of the species is in China. It is seldom cultivated.
description
The Chinese storax tree is a 5 to 12 meter high tree with a trunk up to 12 centimeters in diameter at chest height and dark brown bark . Young shoots are star-haired and later bald. The leaves are alternate, almost alternate at the base of the branches. They have a stalk that is 0.7 to 1.5 centimeters long. The leaf blade is paper-like, 8 to 12 centimeters long and 4 to 6 centimeters wide, oblong to oblong-egg-shaped, pointed or long pointed with a slightly curved tip, with a slate, almost rounded to broadly wedge-shaped base and a serrate to almost entire leaf margin. Seven to ten secondary nerve pairs are formed, the tertiary leaf veins are arranged like a network. Both leaf sides are rough, the leaf veins are sparsely covered with gray-brown star hairs and when dry, gray-green to dark green.
The inflorescences are 9 to 15 centimeters long, hairy and terminal clusters of eight to ten flowers . The flower stalk is 2 to 4 millimeters long and slightly curved. The flowers are 1.8 to 2.7 centimeters in diameter. The calyx is bell-shaped, 4 to 8 millimeters long and 3 to 6 millimeters wide. The five calyx teeth are sublet to triangular, of unequal length with lengths of 2 to 3 millimeters and with glandular dotted tips. The tips of the corolla are oval to oval-obovate, pointed and about 1.5 centimeters long and 0.5 centimeters wide. The stamens are shorter than the corolla, the stamens are sparsely covered with shaggy, white star hair. The fruits are round to ovoid, with a pointed end, 8 to 13 millimeters long, with a diameter of 10 to 15 millimeters, wrinkled and densely tomentose with yellow-brown to gray-yellow star hairs. The one or two seeds per fruit are brown, smooth or slightly wrinkled and bare. The Chinese Storax tree blooms from May to June, the fruits ripen from July to September.
Occurrence and location requirements
The natural range is in China in the southeast of the Gansu province , in the northeast of Guizhou , in the west of Henan and Hubei , in the northwest of Hunan , in the south of Shaanxi and Shanxi , in Sichuan and in the northeast of Yunnan . The Chinese Storax tree grows on mountain slopes and in forest edges at an altitude of 300 to 900 meters on fresh, weakly acidic to weakly alkaline, sandy-loamy to loamy, nutrient-rich soils in light to partially shaded locations. The species loves warmth and is moderately frost hardy .
Systematics
The Chinese storax tree ( Styrax hemsleyanus ) is a species from the genus of the storax trees ( Styrax ), a genus in the family of the storax trees (Styracaceae). The species was in 1900 by Friedrich Ludwig Diels first scientifically valid described . The generic name Styrax comes from Latin and was the name of the Storax tree as early as the Romans. The specific epithet hemsleyanus refers to the English botanist William Botting Hemsley .
use
The Chinese storax tree is sometimes cultivated as an ornamental shrub because of its decorative flowers .
proof
literature
- Wu Zheng-yi, Peter H. Raven (Ed.): Flora of China . Volume 15: Myrsinaceae through Loganiaceae . Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1996, ISBN 0-915279-37-1 , pp. 258 (English).
- Andreas Roloff , Andreas Bärtels: Flora of the woods. Purpose, properties and use. With a winter key from Bernd Schulz. 3rd, corrected edition. Eugen Ulmer, Stuttgart (Hohenheim) 2008, ISBN 978-3-8001-5614-6 , p. 633.
- 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
- ↑ German name after Roloff et al .: Flora der Gehölze , p. 633
- ↑ a b c Shumei Huang, James W. Grimes: Styrax hemsleyanus , in the Flora of China , Volume 15, p. 258
- ↑ a b c d Roloff et al .: Flora der Gehölze , p. 633
- ↑ a b Styrax hemsleyanus. In: Germplasm Resources Information Network (GRIN). United States Department of Agriculture, accessed May 20, 2012 .
- ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 617
Web links
Styrax hemsleyanus. In: The Plant List. Retrieved May 20, 2012 .