Salix divergentistyla
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Salix divergentistyla is a shrub or tree from the genus of willow ( Salix ) with mostly 3 to 4.5 centimeters long leaf blades . The natural range of the species is in Tibet in the People's Republic of China .
description
Salix divergentistyla grows as a shrub or small tree. The branches are brownish red and bare. The leaves have a petiole about 6 millimeters long. The leaf blade is narrowly elliptical, 3 to 4.5 inches long and 1.3 to 1.6 inches wide. The leaf margin is entire, the leaf base and the leaf end are sharply pointed. The upper side of the leaf is green, glabrous and has sunken veins, the underside is greenish, shaggy hairy, almost bald or bald and has a protruding central vein. Nine to twelve pairs of lateral leaf veins are formed.
Male inflorescences are unknown. The female kittens are 3.5 to 5.5 inches long and about 1 centimeter in diameter. The inflorescence stalk is long and has two or three small leaves, the inflorescence axis is hairy downy. The bracts are broadly elliptical or broadly elongated, about as long as the ovary and slightly ciliate. The end of the leaf is almost round, rounded, trimmed or edged. The underside is brown near the base, the upper side bare. Female flowers have an egg-shaped or rectangular, entire or divided adaxial nectar gland . The ovary is ovoid, about 2.5 millimeters long, dense daunig hairy and sitting. The stylus is long, almost completely divided and has halves standing apart. The scar is split. The fruits are about 5 millimeters long, finely hairy capsules .
Distribution and ecology
The natural range is in the east of the Tibet Autonomous Region in Zayü County . There the species grows on mountain slopes and in valleys at an altitude of around 3400 meters.
Systematics
Salix divergentistyla is a kind from the kind of willow ( Salix ), in the family of the pasture plants (Salicaceae). There it is assigned to the Psilostigmatae section . It was scientifically described in 1979 by Fang Zhenfu in the Acta Phytotaxonomica Sinica . No synonyms are known.
Individual evidence
- ↑ a b c d Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix divergentistyla In: Flora of China. Volume 4, p. 232.
- ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix Sect. Psilostigmatae In: Flora of China. Volume 4, p. 226.
- ^ Salix divergentistyla . In: The International Plant Name Index. Retrieved December 28, 2014 .
- ^ Salix divergentistyla . In: The Plant List. Retrieved December 28, 2014 .
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. 226, 232 (English).
Web links
- Salix divergentistyla at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed December 28, 2014.