Corymbia maculata

Corymbia maculata

Corymbia maculata is a species of plant in the myrtle family ( Myrtaceae ). You comes at the east coast of Australia, from southeastern Queensland to eastern Victoria before and is there called "Spotted Gum".

Description

Appearance and leaf

Corymbia maculata grows as a tree reaching heights of growth to 45 meters. The bark is smooth on the whole tree, matt or glossy white to gray, pink or cream- white and peels in small, polygonal patches. The small branches have green bark. In bone marrow oil glands are present in the bark not.

In Corymbia maculata is present Heterophyllie. The leaves are always divided into petiole and leaf blade. The leaf blade of young specimens is lanceolate to ovate, glossy green and has simple hair and stiff glandular hairs. At middle-aged specimens, the leaf blade is elliptic to ovate, straight, entire and shiny green with a length of about 23 cm and a width of about 0.95 cm. The petiole of adult specimens is narrow flattened or channel-shaped with a length of 15 to 25 mm. The leaf blade of adult specimens is relatively thin, with a length of 10 to 21 cm and a width of 1.5 to 3 cm narrow - lanceolate to lanceolate, straight, cut with tapered Spreitenbasis and bespitztem upper end. Your upper leaf surface and bottom is evenly green satin finish. The barely visible lateral nerves go at small distances from an acute or obtuse angle from the midrib. On each half of the sheet, there is a strong, consistent, so-called intra- marginal nerve; he runs along at a short distance on the leaf margin. The cotyledons ( cotyledons ) are nearly circular.

Inflorescence and flower

Terminal on a round shaft with a length of 5 to 20 mm in cross section and inflorescence stem is a composite inflorescence, which consists of part doldigen inflorescences with about three flowers. The peduncle is terete with a length of 3 to 7 mm in cross section.

The non- floured blue - green or frosted flower bud is ovate or obovate with a length of 8 to 11 mm and a diameter of 6 to 7 mm. The sepals form a calyptra, which can be maintained until flowering ( anthesis ) or fall off early. The smooth calyptra is hemispherical or beaked, shorter than the smooth flower cup ( hypanthium ) and as wide as this. The flowers are white or cream-colored.

Fruit and seeds

The stalked fruit is ovoid or slightly urn -shaped with a length of 10 to 14 mm and a diameter of 9 mm to 11 mm and three to vierfächerig. The disc is pressed, the fruit trays are included.

The regular and flattened, kneecaps or ovoid seed has a net-like, matte to satin, red or red-brown seed coat. The hilum is located at the upper end of the seed.

Occurrence

The natural range of Corymbia maculata is the east coast of Australia from south-east Queensland to the far east of Victoria, and the west adjoining plateau in the east and north-east of New South Wales.

Corymbia maculata grows dominant in open woodland on less fertile soils and dry conditions over shale.

Taxonomy

The first description was in 1844 by William Jackson Hooker under the name ( basionym ) Eucalyptus maculata Hook. Icones Plantarum in, Volume, Table 619 The type material has the label " Interior of N. Holland, Fraser. Maitland, Liverpool and Newcastle, Backhouse "on. The recombination Corymbia maculata to ( Hook. ) KDHill & LASJohnson took place in 1995 under the title Systematic studies in the Eucalypts. 7 A revision of the blood woods, genus Corymbia ( Myrtaceae ) in Telopea, Volume 6, Issue 2-3, p 393 The epithet maculata is derived from the Latin word for blotchy maculatus, indicating the color of the bark. Another synonym for Corymbia maculata ( Hook. ) KDHill & Eucalyptus maculata Hook LASJohnson is .. var maculata.

Corymbia maculata Corymbia hybrids × gummifera are known from southern New South Wales and Corymbia were named nowraensis ( after the town of Nowra ). Corymbia maculata Corymbia hybrid of × intermedia and Corymbia maculata Corymbia citriodora × were found in New South Wales.

Use

Corymbia maculata is used as an ornamental plant in parks and on roadsides. There are varieties.

The heartwood of Corymbia maculata is light brown to dark reddish brown and has a specific gravity of about 1010 kg / m³. The wood is used as construction and furniture wood and is used for example in shipbuilding and the manufacture of tool handles, railway sleepers and flooring.