Eucalyptus sieberi
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Eucalyptus sieberi |
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| LASJohnson |
Eucalyptus sieberi is a species ofthe myrtle family (Myrtaceae). It occurs on the central and southern coastline of New South Wales , in the Great Dividing Range , as well as in the east and south of Victoria and in the north-east of Tasmania and is called "Black Ash", "Coast Ash", "Silvertop Ash", " Silvertop "," Ironbark "or" Tasmanian Ironbark "called.
description
Appearance and leaf
Eucalyptus sieberi grows as a tree that reaches heights of up to 30 meters, sometimes up to 45 meters. The bark remains on the entire trunk and the larger branches, is gray-brown to gray-black with short fibers and compact. At the top of the tree it is gray or white and peeled in ribbons. The bark of the small twigs is floured or frosted blue-green. There are no oil glands in the marrow of the young branches or in the bark.
In Eucalyptus sieberi , heterophyllia is present. The leaves are always divided into a petiole and a leaf blade. The leaf blade on young specimens is broadly lanceolate to ovate and dull gray-green. On middle-aged specimens, the leaf blade is about 17 cm long and about 7.5 cm wide, also broadly lanceolate to ovate, straight or crescent-shaped, with entire margins and matt gray-green. The leaf stalks on adult specimens are 13 to 18 mm long and narrowly flattened or channel-shaped. The leaf blade on adult specimens is glossy green on the top and bottom and is 9 to 15 cm long and 1.2 to 1.8 cm wide, lanceolate, relatively thick, sickle-shaped, has a pointed upper end and towards the base of the blade it can taper or become blunt. The side nerves, which are barely visible, extend from the median nerve at medium intervals at an acute or very acute angle. The cotyledons ( cotyledons ) are kidney-shaped.
Inflorescence and flower
On the side of an inflorescence stem with a length of 8 to 16 mm and a diameter of up to 3 mm in cross-section, narrowly flattened or angular inflorescence stem stand together in a simple inflorescence about seven to fifteen flowers. The pedicels are 1 to 4 mm long. The flower buds are club-shaped with a length of 4 to 7 mm and a diameter of 3 to 4 mm and are not floured or frosted blue-green. The sepals form a calyptra that remains in place 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 creamy white. The outer stamens are sterile (sterile).
fruit
The stalked fruit is 8 to 11 mm long and 7 to 9 mm in diameter, conical or pear-shaped and three to four-faced. The disc is raised or flat, the fruit compartments are enclosed or at the level of the rim.
Occurrence
The natural range of Eucalyptus sieberi is the central and southern coastline of New South Wales and the adjacent Great Dividing Range , south of Newcastle , as well as the east and south of Victoria and the northeast of Tasmania .
Eucalyptus sieberi thrives locally dominantly in dry or moist hard-leaved forest or woodland on poorly or moderately fertile, flat soils on elevations.
Taxonomy
The first description of Eucalyptus sieberi was made in 1962 by Lawrence Alexander Sidney Johnson , entitled Studies in the Taxonomy of Eucalyptus in Contributions from the New South Wales National Herbarium , Volume 3 (3), p 125. This type of material has the caption " Blackheath, NSW , JH Maiden 4.1899 (NSW 54047), with buds, fruit, adult and coppice foilage ". Synonyms for Eucalyptus sieberi L.ASJohnson 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 from Eucalyptus sieberi is used as construction timber and for handles. It is also used to make wood chips, which are then used, for example, to make writing paper.
Individual evidence
- ↑ a b c View Specimen search results: Eucalyptus sieberi at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved April 22, 2013
- ↑ a b c APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved April 22, 2013
- ↑ a b c d e f g h i j k l m K. Hill: Eucalyptus sieberi (LASJohnson) at New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Retrieved April 22, 2013
- ↑ a b c d e f g h i j k l m n o p q r s t Eucalyptus sieberi at EucaLink - A Web Guide to the Eucalypts . Retrieved April 22, 2013.
- ↑ Eucalyptus sieberi at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed April 22, 2013.
- ↑ Rafaël Govaerts (ed.): Eucalyptus sieberi. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 22, 2013.
- ↑ Silvertop Ash at timber.net.au - The Australian Timber Database. ( Memento of the original from February 18, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved April 22, 2013
- ↑ Keith R. Bootle: Wood in Australia - types, properties and uses . McGraw-Hill, New York 2005. 2nd edition. ISBN 0-07-471312-4 . The source may have been available to the author in the en-Wikipedia, but was not viewed when the de-Wikipedia article was created.
