Eucalyptus sieberi
Eucalyptus sieberi
Eucalyptus sieberi is a flowering plant within the myrtle family ( Myrtaceae ). She comes to the central and southern part of the coast of New South Wales, before the Great Dividing Range, as well as the east and south of Victoria and the North East of Tasmania, where it is "Black Ash ", " Coast Ash ", " Silvertop Ash ", " Silvertop, "" Ironbark "or" Tasmanian Ironbark called ".
Description
Appearance and leaf
Eucalyptus sieberi grows as a tree, the growth heights of up to 30 meters, sometimes up to 45 meters, is reached. The bark remains on the entire trunk and larger branches is gray - brown to gray-black short-fibred and compact. On the upper parts of the tree it is gray or white and peels off in strips. The bark of young branches is floured blue green or frosted. Neither in the marrow of the young branches still in the bark, there are oil glands.
In Eucalyptus sieberi is available Heterophyllie. The leaves are always divided into petiole and leaf blade. The leaf blade of young specimens is broad - lanceolate to ovate and dull gray - green. At middle-aged specimens, the leaf blade is also broad - lanceolate to ovate, with a length of about 17 cm and a width of about 7.5 cm, straight or curved like a sickle, entire and dull gray - green. The petioles of adult specimens are 13-18 mm long and narrow flattened or channel-shaped. The on top and bottom of the same color glossy green leaf blade of adult specimens is lanceolate with a length of 9 to 15 cm and a width of 1.2 to 1.8 cm, relatively thick, curved like a sickle, has pointed towards upper end and to Spreitenbasis can be tapered or blunt run. The barely visible lateral nerves go in average distances from an acute or very acute angle from the midrib. The cotyledons ( cotyledons ) are kidney-shaped.
Inflorescence and flower
Constantly on a page with a length of 8 to 16 mm and a diameter of up to 3 mm in cross section, narrow flattened or angular inflorescence stem are in a simple inflorescence about seven to fifteen flowers together. The terete pedicels are 1-4 mm long. The flower buds are floured clavate and not blue green with a length of 4 to 7 mm and a diameter of 3 to 4 mm or frosted. The sepals form a calyptra, which remains available until flowering ( anthesis ). The smooth calyptra is hemispherical, shorter or as long as the smooth flower cup ( hypanthium ) and as wide as this. The flowers are white or off- white. The outer stamens are infertile ( sterile).
Fruit
The stalked crop is tapered at a length of 8 to 11 mm and a diameter of 7 to 9 mm or pear-shaped and three-to vierfächrig. The disk is raised or flat, the fruit or compartments are included at the level of the edge.
Occurrence
The natural range of Eucalyptus sieberi is the central and southern part of the coast of New South Wales and the adjacent Great Dividing Range, south of Newcastle, and the east and south of Victoria and the North East of Tasmania.
Eucalyptus sieberi thrives locally dominant in dry or wet sclerophyll forest or woodland on a low or moderate fertile, shallow soils on surveys.
Taxonomy
The first description of Eucalyptus sieberi was made in 1962 by Lawrence Alexander Sidney Johnson, under the title Studies in the Taxonomy of Eucalyptus in Contributions from the New South Wales National Herbarium, Volume 3 (3 ), pp. 125 The type material has the caption " Blackheath, NSW, JH Maiden 4.1899 (NSW 54047 ), with buds, fruit, adult and coppice foilage "on. Synonyms for Eucalyptus sieberi LASJohnson are: Eucalyptus virgata Sieber ex Spreng, Eucalyptus sieberiana F.Muell. nom. illeg. , Eucalyptus virgata Sieber ex Spreng. var virgata, Eucalyptus sieberiana F.Muell. var sieberiana.
Use
The heartwood of Eucalyptus sieberi is pale brown, sometimes pink, and hard. The wood of Eucalyptus sieberi is used as timber and for handles. It is also used for the production of wood chips, which are then used, for example for the manufacture of writing paper.