Cotoneaster acuminatus
Spitzblättrige cotoneaster ( Cotoneaster acuminatus )
The Spitzblättrige cotoneaster ( Cotoneaster acuminatus ) is a flowering plant in the genus Zwergmispeln ( Cotoneaster ) within the rose family ( Rosaceae ). It originates from the Himalayas.
- 5.1 Notes and references
Description
Appearance and leaf
The Spitzblättrige cotoneaster grows as an upright, deciduous shrub, the plant height 2-3 meters, rarely reaches even up to 4 meters. The terete branches have a grayish - brown to brownish and yellowish initially densely bristly hairy, later bare bark.
The alternate arranged on the branches leaves are divided into petiole and leaf blade. The shaggy hairy petiole has a length of 3 to 5 mm. The simple leaf blade is at a length of 2 to 6.5 cm and a width of 2 to 3 cm elliptical- ovate to ovate - lanceolate with broadly wedge -shaped Spreitenbasis and usually sharpened to rarely acute upper end. Both leaf surfaces are hairy shaggy, but the lower leaf surface densely. The lance-shaped with a length of 3 to 5 mm and shaggy hairy stipules fall partly on during fruit ripening.
Inflorescence and flower
The flowering time, depending on site interim May and June. Of 1 to 2 cm long zymöse inflorescence usually contains only two or three ( one to five ) flowers. The Blütenstandrhachis and 3 to 5 mm long flower stems are hairy yellowish shaggy. The lanceolate or lineal with a length of 2 to 4 mm bracts have a shaggy little edge.
The scented flowers are hermaphrodite radial symmetry and fünfzählig double perianth. The bell-shaped flowers cup ( hypanthium ) is outside hairy pressed shaggy. Five sepals are at a length of 1.5 to 2.5 mm and a width of 2 to 3 mm triangular with a pointed upper end. The corolla has a diameter of about 6 to 8 mm centimeter. The five bare, free petals are ovate to obovate with a length of 3 to 4 mm, and almost the same width and keeled with blunt serrated to the top. The color of the petals is pink to whitish. The twenty stamens shorter than the petals. The two free carpels are hairy soft at the top and each contain about two erect ovules. The two free pens not project beyond the stamens.
Fruit and seeds
Apple fruits are ellipsoid -shaped with a length of 8 to 10 mm and a diameter of 7 to 8 mm. Between September and October, the fruits ripen and turn bright red. In a fruit two parchment-like housing ( follicles ) are present. On the fruit, there are five, fleshy, incurved sepals. In a fruit there are few to a few flattened, hard seeds.
Chromosome number
The chromosome number is 2n = 34 or 68
Occurrence
The Spitzblättrige Cotoneaster native to the Himalayas. It is native to northern India, Bhutan, Sikkim, Nepal and the Chinese provinces of Sichuan, Xizang, and Yunnan. In China, it thrives in mixed forests, thickets and fields at altitudes between 1300-3000 meters and Nepal at altitudes 2500-3700 meters.
Taxonomy
The first publication of Cotoneaster acuminatus was in 1821 by John Lindley in Transactions of the Linnean Society of London, 13 ( 1), p 101, Table 9, there " acuminata " written. Synonyms for Cotoneaster acuminatus Lindl. are: Cotoneaster bakeri G.Klotz, Cotoneaster kongboensis G.Klotz, Cotoneaster mucronatus Franch, Cotoneaster nepalensis André, Mespilus acuminatus acuminatus Lodd .. The specific epithet is pointed, this refers to the shape of the leaves. .
Use and site conditions in culture
The Spitzblättrige cotoneaster is used as an ornamental tree.
The Spitzblättrige cotoneaster grows best on light ( sandy ), medium ( loamy ) and heavy soils, best if they are well drained. The pH of the soil hardly plays a role in this Art. Cotoneaster acuminatus can also thrive on nutrient-poor, highly alkaline soils. It thrives in sunny and semi- shady locations, but not in the shade. The Spitzblättrige cotoneaster is tolerant of air pollution.
A pink dye may be obtained from the fruit. The wood is textured very hard and closely and evenly. Since the branches are too small, only smaller workpieces are manufactured with it. The branches are used in the Himalayas to the bridge.
About a use as food or medicine is not known.
Swell
- Lu Lingdi & Anthony R. Brach: Cotoneaster Cotoneaster acuminatus, p.98 -Online, In: Wu Zheng -yi, Peter H. Raven (eds.): Flora of China, Volume 9: Pittosporaceae through Connaraceae, Science Press and Missouri Botanical Garden Press, Beijing and Saint Louis 2003, ISBN 1-930723-14-8. (Section Description and dissemination )