Corymbia trachyphloia
Corymbia trachyphloia is a flowering plant in the myrtle family ( Myrtaceae ). It occurs in north-eastern New South Wales and eastern Queensland, where it is called " White Blood Wood" or "Brown Bloodwood ".
Description
Appearance and leaf
Corymbia trachyphloia grows as a tree reaching heights of growth to 25 meters. The bark remains on the entire tree or on the smaller branches, is like a chess board and matt pale brown to yellow - brown. On the upper parts of the tree it is off-white or gray - brown and peels off in short strips. The small branches have green bark. In bone marrow oil glands are present in the bark not.
In Corymbia trachyphloia is available Heterophyllie. The leaves are always divided into petiole and leaf blade. The leaf blade of young specimens is lanceolate to ovate or elliptic to ovate, glossy green and has simple hair and stiff glandular hairs. At middle-aged specimens, the leaf blade is elliptical to monotonous, straight, entire and shiny green with a length of about 14 cm and a width of about 0.6 cm. The petiole of adult specimens is narrow flattened or channel-shaped with a length of 10 to 17 mm. The leaf blade of adult specimens is at a length of 7 to 12 cm and a width of 0.9 to 2.1 cm narrow - lanceolate to lanceolate, curved, relatively thin, cut with tapered and pointed Spreitenbasis or bespitztem upper end. Your upper leaf surface and bottom is different shiny green to gray-green. 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 at a length of 5 to 13 mm and a width of up to 3 mm in cross section, narrow flattened or angular inflorescence stem is a composite inflorescence, consisting of doldigen partial inflorescences, each with about seven - flowers. The peduncle is terete with a length of 2 to 6 mm in cross section.
The non- floured blue green or frosted flower bud is club- or pear-shaped with a length of 4 to 5 mm and a diameter of 2 to 3 mm. The sepals form a calyptra, which is maintained until flowering ( anthesis ). The smooth calyptra is knee disc-shaped to slightly beaked, shorter than the smooth flower cup ( hypanthium ) and about one-fifth to half as wide as this. The flowers are white or cream-colored.
Fruit and seeds
Smooth stalked crop is at a length of 6 to 10 mm and a diameter of 5 to 8 mm box -shaped and three-to vierfächerig. The disc is pressed, the fruit trays are included.
The regular and flattened, disc-shaped seeds knee 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 trachyphloia is the plateau in the north- east of New South Wales, north of the Goulburn River, and the entire eastern part of Queensland, from Brisbane to the north of Cairns.
Corymbia trachyphloia grows sporadically in places but also very common in sparse sclerophyll forest on shallow, infertile soils over sandstone, granite or acid volcanic rocks.
Taxonomy
The first description was in 1859 by Ferdinand von Mueller under the name ( basionym ) Eucalyptus trachyphloia F.Muell. and the title of Monograph of the Eucalypti of tropical Australia in the Journal of the Proceedings of the Linnean Society, Botany, Volume 3, page 90 The type material has the caption In collibus ad flumen Burnett, Anth. Sept, Oct. on. The new combination to Corymbia trachyphloia ( F.Muell. ) 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 (2-3 ), pp. 227 Other synonyms for Corymbia trachyphloia ( F.Muell. ) KDHill & LASJohnson are Corymbia trachyphloia (F. Muell. ) KDHill & LASJohnson. subsp. trachyphloia, Corymbia trachyphloia subsp. amphistomatica KDHill & LASJohnson, Corymbia trachyphloia subsp. carnarvonica KDHill & LASJohnson, and Eucalyptus trachyphloia f fructicosa FMBailey.