Salix doii

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Salix doii
Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Willow family (Salicaceae)
Genre : Willows ( Salix )
Type : Salix doii
Scientific name
Salix doii
Hayata

Salix doii is a shrub from the genus of willow ( Salix ) with usually 3 to 4 centimeters long leaf blades . The natural range of the species is in Taiwan .

description

Salix doii grows as a shrub up to 3 meters high. The branches are hairy to a greater or lesser extent. The leaves have a 0.8 to 1.5 centimeter long, downy hairy petiole. The leaf blade is oblong-lanceolate, 3 to 4 inches long and about 1 inch wide. The leaf margin is entire, the leaf base wedge-shaped-rounded to rounded, the leaf end pointed. The upper side of the leaf is sparsely hairy shaggy, the underside with downy hairs. Ten lateral nerves are formed on each side of the median artery.

The male inflorescences are 2.5 to 3 rarely to 4 centimeters long catkins . The peduncle is short and has one or two scaly, small leaves. The bracts are elongated or elliptical, downy hairy and ciliate and about half as long as the stamens. Male flowers have a short-cylindrical adaxial nectar gland . Two free-standing stamens are formed, the stamens are finely haired near the base. The female kittens are about 3 centimeters long, when the fruit is ripe, 6 to 8 centimeters long and have a diameter of about 1.5 centimeters. The peduncle is about 1.5 inches long and has two or three small leaves. The bracts resemble those of the male inflorescences. Female flowers have an adaxial nectar gland. The ovary is narrow-ovate, finely hairy and long stalks, the stylus is short, the scar lapped four times. The fruits are slightly hairy capsules .

Distribution and ecology

The natural range is on Taiwan . There the species grows in open areas and near rivers at altitudes of 2000 to 2800 meters.

Systematics

Salix doii is a species from the genus of willows ( Salix ) in the willow family (Salicaceae). There it is assigned to the Fulvopubescentes section . It was scientifically described by Hayata Bunzō in 1915 . Synonyms of the species are Salix eriostroma Hayata , Salix fulvopubescens  var.  Doii  (Hayata) KC Yang & TC Huang and Salix morii Hayata .    

Individual evidence

  1. ↑ a b c d Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix doii In: Flora of China. Volume 4, p. 191.
  2. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix Sect. Fulvopubescentes In: Flora of China. Volume 4, p. 190.
  3. ↑ Salix doii . In: The International Plant Name Index. Retrieved December 28, 2014 .
  4. ↑ Salix doii . 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. 190, 191 (English).

Web links

  • Salix doii at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed December 28, 2014.