Eucalyptus tereticornis
Eucalyptus tereticornis
Eucalyptus tereticornis is a species of plant in the myrtle family ( Myrtaceae ). It occurs in southern Papua New Guinea and on the east coast of Australia, where it is " Forest Red Gum", "Bastard Box ," " Blue Gum ", " Flooded Gum ," " Grey Gum ", " Mountain Gum", " Queensland Blue called Gum " ," Red Gum " ," Red Ironbark " ," Red Irongum "or" Slaty Gum ".
- 4.1 wood
- 4.2 eucalyptus oil
Description
Appearance and leaf
Eucalyptus treticornis grows as a tree reaching heights of growth of up to 50 meters. The bark is smooth on the whole tree and white or gray. She peels off in large plates or flakes. The small branches are green. Oil glands there is neither in the bark still in the marrow.
In Eucalyptus treticornis is available Heterophyllie. The leaves of young specimens are broad - lanceolate to ovate and glossy green. The monochrome matt green leaves on adult specimens are narrow - lanceolate to lanceolate with a length of 10 to 20 cm and a width of 1-3 cm. The lateral nerves are raised, pointed or blunt, and have average distances. The 13 to 24 mm long leaf stalks are flattened narrow in cross-section or channel-shaped.
Inflorescence and flower
On a cross-sectional narrow flattened or angular, 7-25 mm long inflorescence stem are about seven, rarely elfblütige part inflorescences in total composite inflorescences. The stalk round flower stalk is 3-10 mm long. The cylindrical or spindle-shaped flower buds 10 to 20 mm long and have a diameter of 4 to 8 mm. The calyptra is oblong - pointed or conical, longer and wider than the flower cup ( hypanthium ) and falls early on. Flower cups and Calyptra are smooth. The flowers are creamy white.
Fruit
The fruit is spherically or egg-shaped with a length of 4 to 6 mm and a diameter of 4 to 8 mm. The discus is raised, the fruit trays protrude.
Occurrence
The natural range of Eucalyptus tereticornis is located in the south of Papua New Guinea and along the east coast of Australia from Queensland to eastern Victoria, as well as the table-land of New England.
Eucalyptus tereticornis grows in grassy, dry or moist forests and is often dominant in these locations. The species prefers soils with medium to high nutrient content. In many habitats, such as the upper reaches of the Hunter River, at the Goulburn River at Coxs River and Kowmung River, Eucalyptus tereticornis occurs together with Eucalyptus blakelyi.
Taxonomy
The first samples of Eucalyptus tereticornis were collected by John White, Expeditonsarzt the First Fleet and naturalist. James Edward Smith then introduced in 1793, the first description in his created together with George Shaw work " Zoology and Botany of New Holland" by. The type material has the label " New South Wales, Port Jackson, J. White 1793 " auf.1795 was reissued the work under the title "A Specimen of the Botany of New Holland". There Eucalyptus tereticornis is described in Volume 4 on page 41. The specific epithet tereticornis is composed of the Latin words for teretus terete and cornu for horn. This points to the shape of the buds envelope.
Eucalyptus tereticornis Sm are synonyms for Eucalyptus subulata showers, Leptospermum umbellatum Gaertn. , Eucalyptus umbellata var pruniflora Blakely, Eucalyptus tereticornis var pruniflora ( Blakely ) Cameron, Eucalyptus and Eucalyptus insignis Naudin populifolia Desf.
There are a number of varieties that are not generally recognized.
Eucalyptus tereticornis is where it is associated with Eucalyptus robusta, often a hybrid that was named Eucalyptus patentinervis. Other less common hybrids are known.
Use
Wood
Eucalyptus tereticornis provides a hard, durable core wood with a specific weight of approximately 1100 kg / m³. It is used as construction and timber, for example, for railway sleepers, used.
Eucalyptus oil
From the leaf of Eucalyptus tereticornis to win cineolbasiertes eucalyptus oil.