Salix cheilophila

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Salix cheilophila
Systematics
Rosids
Eurosiden I
Order : Malpighiales (Malpighiales)
Family : Willow family (Salicaceae)
Genre : Willows ( Salix )
Type : Salix cheilophila
Scientific name
Salix cheilophila
CK cutting

Salix cheilophila is a shrub or small tree from the genus of willow ( Salix ) with initially tomentose hairy and later balding branches. The leaf blades have lengths of 2.5 to sometimes 6 centimeters. The natural range of the species is in China.

description

Salix cheilophila is a shrub or small tree up to 5 meters high with gray-black or red-black branches that are initially tomentose and later bald. The buds are hairy shaggy. The leaves have a very short stem. The leaf blade is linear, linear-inverted-lanceolate or inverted-lanceolate, 2.5 to 3.5 seldom to 6 centimeters long and 3 to 5 seldom 10 millimeters wide, pointed or pointed, with a narrowed or seldom blunt base and glandular serrations towards the tip of the leaf Leaf margin. The upper side is green and finely haired, the underside white-gray and densely haired silky.

The male inflorescences are 1.5 to 2.5 centimeters long and 3 to 4 millimeters in diameter, almost sitting catkins with two to three leaves at the base. The bracts are obovate-oblong, with a blunt or edged tip and a downy, hairy base. Male flowers have a narrow, elongated, rarely bilobed nectar gland . The two stamens are completely grown together and bare, the anthers are yellow and four-fold. The female kittens are up to 2.5 inches long. The bracts are more or less round. Female flowers have a narrow, elongated nectar gland. The ovary is ovoid to ovoid-cylindrical, densely finely hairy or bald, sitting or short stalks. The scar is short. Capsules about 3 millimeters long are formed as fruits . Salix cheilophila flowers from April to May when the leaves shoot, the fruits ripen in May.

Occurrence

The natural range is in the Chinese provinces of Gansu , Hebei , Henan , in Inner Mongolia , in Ningxia , Qinghai , Shaanxi , Shanxi , Sichuan , Yunnan and in Tibet along rivers at heights of 700 to 3000 meters.

Systematics

The shipyard pasture. Salix acuminata. Yarn willow. In: Reitter / Abel: Illustration of the Hundred German Wild Wood Species , 1790–1794

Salix cheilophila is a kind from the kind of willow ( Salix ), in the family of the pasture plants (Salicaceae). There it is assigned to the Cheilophilae section . It was first described scientifically in 1916 by Camillo Karl Schneider . The generic name Salix comes from Latin and was already used by the Romans for various types of willow. The species is very similar to Salix wilhelmsiana .

There are four varieties :

  • Salix cheilophila var. Acuminata C.Wang & YLChou with obscure -lanceolate, 4 to 6 millimeters long and 7 to 10 millimeters wide, acuminate leaf blades. Female flowers have a short stalked ovary, the stylus is long and reaches about one third the length of the ovary. the distribution area is in the Chinese province of Hebei.
  • Salix cheilophila var. Cheilophila with linear or linear-inverted-lanceolate, 2.5 to 3 rarely 5 centimeters long and 3 to 5 rarely 7 millimeters wide, pointed or acuminate leaf blades. Female kittens are 1.3 to 2 inches long and 1 to 2 millimeters in diameter. The bracts reach about two thirds the length of the ovary. The ovary is densely hairy, the style short or absent.
  • Salix cheilophila var. Microstachyoides (C.Wang & PYFu) C.Wang & CFFang with short thick, 5 mm long to 6 and 2 to 3 millimeters by measuring female kitten. The bracts are usually about the same length as the ovary. Female flowers have two nectar glands, one adaxial and one abaxial. The species is mostly cultivated, the natural range is in Tibet. The taxon was first described as a separate species Salix microstachyoides .
  • Salix cheilophila var. Villosa G.H.Wang with bracts with shaggy hair on the underside. Female flowers have an elongated style up to 3 millimeters long. The distribution area is in Hebei.

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. 263, 264 (English).
  • Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 , p. 552 (reprint from 1996).

Individual evidence

  1. ↑ a b c d e f Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix cheilophila , in the Flora of China , Volume 4, p. 264
  2. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix Sect. Cheilophilae , in the Flora of China , Volume 4, p. 263
  3. ↑ Exactly: Etymological Dictionary of Botanical Plant Names , p. 552
  4. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix cheilophila var. Acuminata , in the Flora of China , Volume 4, p. 264
  5. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix cheilophila var. Cheilophila , in the Flora of China , Volume 4, p. 264
  6. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix cheilophila var. Microstachyoides , in the Flora of China , Volume 4, page 264
  7. ↑ Cheng-fu Fang, Shi-dong Zhao, Alexei K. Skvortsov: Salix cheilophila var. Villosa , in the Flora of China , Volume 4, page 264

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