Eucalyptus obliqua
| Eucalyptus obliqua | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Eucalyptus obliqua |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Eucalyptus obliqua | ||||||||||||
| L'Her. |
Eucalyptus obliqua is a species ofthe myrtle family (Myrtaceae). It occurs in the coastal and coastal areas of southeastern Australia and in Tasmania and is called "Messmate", "Messmate Stingybark", "Stringybark", "Brown Top", "Brown Top Stringybark", "Australian Oak" or "Tasmanian Oak" " called.
description
Appearance and leaf
Eucalyptus obliqua grows as a tree that reaches heights of up to 50 meters, sometimes up to 90 meters. The bark remains on the smaller branches, is gray to red-brown and fibrous or short-fibred. On the upper parts of the tree it is white to gray and peels in short ribbons. The bark of the small branches is green. There are no oil glands in the marrow of the young branches or in the bark.
In Eucalyptus obliqua , heterophyllia is present. The leaves are always divided into a petiole and a leaf blade. On young specimens, the leaf blade is ovate to elliptical and shiny green. On middle-aged specimens, the glossy green leaf blade is ovoid to elliptical, sickle-shaped and has entire margins with a length of about 10 cm and a width of about 5 cm. The leaf stalk on adult specimens is 7 to 17 mm long and narrowly flattened or channel-shaped. The leaf blade on adult specimens is glossy green on the upper and lower side and is 10 to 15 cm long and 1.5 to 3.3 cm wide, broadly lanceolate, relatively thick, sickle-shaped with a slate base and pointed or blunt upper end. The raised lateral nerves extend from the median nerve at medium intervals at an acute or very acute angle. The cotyledons ( cotyledons ) are kidney-shaped.
Inflorescence and flower
Employed side mm at one with a length of 4 to 15 and a diameter of up to 3 mm stalk round cross-section, narrow-edged flattened or inflorescence stem bear a simple inflorescence about eleven to fifteen flowers together. The 1 to 6 mm long pedicels are stalk-round. The not blue-green floured or frosted flower buds are club-shaped with a length of 4 to 7 mm and a diameter of 2 to 4 mm. The sepals form a calyptra that remains in place until flowering ( anthesis ). The smooth calyptra is hemispherical, shorter than or as long as the smooth flower cup (hypanthium) and as wide as this. The flowers are white or creamy white.
fruit
With a length of 6 to 11 mm and a diameter of 5 to 9 mm, the stalked fruit is spherical, egg-shaped or urn-shaped and three- to fourfold. The disc is indented and the fruit compartments are enclosed or seldom level with the rim.
Occurrence
The natural range of Eucalyptus obliqua is the Great Dividing Range in north New South Wales and south Queensland , the southern coastline of New South Wales, the east, south and southwest of Victoria , the southeast and south of South Australia as well as large parts Tasmania (with the exception of the extreme southwest).
Eucalyptus obliqua grows locally dominant in moist hard- leaved forest or light forest in cold areas with high rainfall on deep, fertile soils .
Taxonomy
The first publication of Eucalyptus obliqua was made in 1789 by de Charles Louis L'Héritier breeding Elle in Sertum Anglicum , page 18. The type material has the label " Habitat in Nova Cambria Nelson. Guil. Anderson “. Synonyms for Eucalyptus obliqua L'Hér. are Eucalyptus pallens DC., Eucalyptus procera Dehnh., Eucalyptus fabrorum Schltdl., Eucalyptus falcifolia Miq., Eucalyptus heterophylla Miq., Eucalyptus nervosa F. Muell. ex Miq. nom. illeg., Eucalyptus obliqua var. degressa Blakely and Eucalyptus obliqua var. megacarpa Blakely.
use
Eucalyptus obliqua is one of the most important Australian hardwood suppliers, together with Eucalyptus regnans it is offered as "Victorian Ash" or "Tasmanian Oak". The wood has a slightly higher specific weight than that of Eucalyptus regnans , which is specified as 720 - 830 kg / m³, and is also harder. The sapwood is pale brown and the heartwood is light brown.
The wood is medium hard, but not very durable. It splinters easily and can be worked, glued and stained easily. It is also suitable for bending under steam. Mainly it is used for pulp production , house building, carpentry, flooring and furniture making.
Well-known single copies
Qualified surveyors have already documented individual specimens with heights of growth of up to 98.8 meters. The currently tallest specimen with a stature height of 86 meters is in Tasmania.
Individual evidence
- ↑ a b Specimen search results: Eucalyptus obliqua at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved April 12, 2013
- ↑ a b c d APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved April 12, 2013
- ↑ a b c d e f g h i j k l K. Hill: Eucalyptus obliqua (L'Hér.) At New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Retrieved April 12, 2013
- ↑ a b c d e f g h i j k l m n o p q r s t u Eucalyptus obliqua at EucaLink - A Web Guide to the Eucalypts . Retrieved April 12, 2013.
- ↑ Eucalyptus obliqua at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed April 12, 2013.
- ↑ Rafaël Govaerts (Ed.): Eucalyptus obliqua. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 12, 2013.
- ↑ a b c Keith R. Bootle: Wood in Australia: Types, Properties and Uses . McGraw-Hill, Sydney 1983. ISBN 0-07-451047-9 . The author had the source in the en-Wikipedia.
- ↑ a b c D. J. Boland et al .: Forest Trees of Australia . 1985. 4th edition. ISBN 0-643-05423-5 . The author had the source in the en-Wikipedia.
- ^ A. Carder: Giant Trees of Western America and The World . Harbor Publishing, Madeira Park (Canada) 2005. The author had the source in the en-Wikipedia.
- ↑ Giant Trees. . Archived from the original on February 16, 2007. 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 12, 2013.
