Corymbia eximia

Corymbia eximia, inflorescences with buds and open flowers, leaves

Corymbia eximia is a flowering plant in the myrtle family ( Myrtaceae ). It occurs on the coast of New South Wales to Sydney, where it is called "Yellow Bloodwood ".

Description

Appearance and leaf

Corymbia eximia grows as a tree reaching heights of growth to 20 meters. The bark remains on the entire tree is pale brown, yellow - brown or orange, like a chess board and fibrous integrally. The small branches have green bark. In bone marrow oil glands are present in the bark but not.

In Corymbia eximia is available Heterophyllie. The leaves are always divided into petiole and leaf blade. The leaf blade of young specimens is ovate or elliptic to broadly lanceolate and has simple hair and stiff glandular hairs. The leaf blade to middle-aged plants is ovate or elliptic to broadly lanceolate, entire and dull gray - green. The petiole of adult specimens is 15 to 25 mm long and narrow channel-shaped or flattened. The on top and bottom of the same color dull gray - green or gray - green leaf blade of adult specimens is relatively thick, lanceolate to broad - lanceolate, curved like a sickle with a length of 10 to 20 cm and a width of 1.3 to 3 cm, with tapered Spreitenbasis and sharpened top end. The barely visible lateral nerves go at small distances from at an 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

Terminally on a 10 to 30 mm long, terete in cross section or angular inflorescence stem is a composite inflorescence, consisting of doldigen part inflorescences, each with about seven flowers. The peduncle is terete, with a length of up to 2 mm in cross section.

The non- blue-green floured or frosted flower bud is pear-shaped with a length of 10 to 15 mm and a diameter of 6 to 8 mm cull - up. The sepals form a calyptra, which drops early. The smooth calyptra conical, slightly beaked, as wide as the smooth flower cup ( hypanthium ) and shorter than this. The flowers are white or cream-colored.

Fruit and seeds

The short -stalked fruit is ovoid to urn -shaped and easily three to vierfächerig at a length of 13 to 20 mm and a diameter of 10 to 15 mm. 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 eximia extends to south of Wollongong on the coast of New South Wales along from Newcastle in the north. Also on the adjacent eastern slopes of the Great Dividing Range Corymbia eximia find.

Corymbia eximia thrives mainly and locally prevalent in sparse sclerophyll forests on flat, infertile soils on sandstone, often on steep slopes.

Taxonomy

First published in 1843 by John Konrad Schauer under the name ( basionym ) Eucalyptus eximia showers in the repertory Botanices Systematicae, Volume 2 (5 ), pp. 925 The type material has the caption " In Nova Hollandia olim. leg F. Bauer "on. The specific epithet is derived from the Latin word eximia eximius for exceptional and refers to the appearance of the bark, or flowers. The recombination Corymbia eximia to ( shudder ) KDHill & LASJohnson took place in 1995 by Kenneth D. Hill and Lawrence Alexander Sidney Johnson, entitled Systematic studies in the Eucalypts, 7 A revision of the blood woods, genus Corymbia ( Myrtaceae ) in Telopea, Volume 6, Issue 2-3, p 383. Corymbia eximia another synonym for ( shudder ) KDHill & LASJohnson is Eucalyptus eximia eximia var showers.

Use

The heartwood is hard and slightly pink to yellow- brown. Its specific weight is from 750 to 990 kg / m³. Due to the low growth height of the trees and their rarity, the wood is processed, but only to a small extent. The English common name Yellow Bloodwood is derived from the color of wood, which is due to the resin nerves.

Eucalyptus eximia is used as a street tree in Australian cities and due to its small stature height as an ornamental plant for gardens.