Cotoneaster integerrimus
Illustration
The Common Cotoneaster or Rock Cotoneaster ( Cotoneaster integerrimus ) is a deciduous, up to 2 meters high, rotfruchtiger shrub from the group of pome fruit crops ( Pyrinae ). The natural range of the species extends from Europe to China and India. It is sometimes used as an ornamental plant.
Description
The Common Cotoneaster is a deciduous, up to 2 meters high, somewhat saving Riger shrub with an upright - overhanging crown. The branches are brown or gray-brown, terete, densely gray-tomentose initially hairy but soon glabrous. The leaves are divided into petiole and leaf blade. The petiole is hairy 2 to 5 millimeters long and tomentose. The stipules are lanceolate, finely hairy and usually remain intact down to fruit ripening. The leaf blade is simple, broadly oval, broadly ovate or roundish, 2 to 5 inches long and 1.3 to 2.5 centimeters ( rarely from 0.5 to 3 centimeters) wide, with acute or obtuse, usually stachelspitziger blade tip and rounded base. The upper leaf surface is dull green, glabrous or sparsely hairy with sunken veins; the underside is densely gray - tomentose hairy with prominent veins.
The flowers grow in 1.5 to 2.5 centimeters by measuring umbrella- from 2 to 5 sometimes 7 flowers with bald or finely hairy stem. The bracts are lanceolate and finely hairy. The flower stalks are like the inflorescence stem hairy hairless or finely and 3-6 millimeters long. The flowers have a diameter of 8 mm. The flower cup is bell-shaped, glabrous or finely hairy outside and separates nectar. The sepals are triangular- oval, obtuse, 1 to 1.5 mm long and 1-2 mm wide. The petals are erect, pink, plump, about 3 millimeters wide, with a blunt tip and nailed basis. The 15 to 20 stamens are about equal in length to the petals. The apex of the ovary is covered with fine hair. The two or rarely three detached style shorter than the stamens. Pollination is by wasps of the genus Polistes wasps usually field. The female carpels mature before the male anthers ( Vorweiblichkeit ), although there may be self-pollination before fading.
The fruits are red or dark red, bald, round or rarely ovoid, berry-like apple fruits with a diameter of 6-7 mm and rarely 8 mealy pulp. The fruit of two rarely three or four cores are usually formed. The Ordinary cotoneaster flowers from May to June and the fruits ripen from August to September. The distribution of seeds carried by birds, especially corvids over by digestion or by rodents, which buried the fruit. Propagation is also vegetatively by root suckers.
The chromosome number is 2n = 68
Occurrence and habitat requirements
The natural distribution area in Europe stretches from Scandinavia, Great Britain and Spain over France, Italy, Austria and Germany to Romania, Poland, the Baltic States, Ukraine and Russia. In Asia, they are found in the Caucasus, Turkey and Afghanistan, Pakistan, China, Korea and India. The Common Cotoneaster grows in steppes and dry forests below 2500 meters on moderately dry to moderately moist, mildly acidic to strongly alkaline, nutrient-rich soils, often on limestone soils on sunny to light shade locations. The type is heat -loving, sensitive to moisture and frost hardy.
System
The Ordinary cotoneaster ( Cotoneaster integerrimus ) is a species in the genus Zwergmispeln ( Cotoneaster ). It is assigned in the rose family ( Rosaceae ) of the subfamily Spiraeoideae, Tribe Pyreae the subtribes of pome fruit crops ( Pyrinae ). The species was scientifically described in 1793 by Friedrich Casimir Medicus as Cotoneaster integerrima first time. The genus name Cotoneaster is derived from the Latin " malum cotoneum " for the quince ( Cydonia oblonga ). The ending " aster " is a Vergröberungsform for groups of plants that are considered in comparison with similar groups as inferior. The specific epithet integerrimus comes from the Latin and means " margin entire ." It refers to the full leaves leaf blade.
Use
The Ordinary cotoneaster is sometimes used because of its impressive fruit as ornamental tree.