Corymbia gummifera
Corymbia gummifera
Corymbia gummifera is a flowering 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 "Red Bloodwood ".
Description
Appearance and leaf
Corymbia gummifera grows as a tree reaching heights of growth to 35 meters. The bark remains on the smaller branches or the entire tree is like a chess board and matt red-brown to gray - brown. On the upper parts of the tree it is creamy white to graun - brown and peels off in short ribbons. The small branches have green bark. In bone marrow oil glands are present in the bark not.
In Corymbia gummifera is available Heterophyllie. The leaves are always divided into petiole and leaf blade. The leaf blade of young specimens are oval to circular or lanceolate to broadly lanceolate and has simple hair and stiff glandular hairs. At middle-aged specimens, the leaf blade is at a length of about 20 cm and a width of about 0.7 cm lanceolate to broad - lanceolate, straight, entire and shiny dark green. The petiole of adult specimens is narrow flattened or channel-shaped with a length of 10 to 23 mm. The leaf blade of adult specimens can be thin or relatively thick, at a length of 10 to 16 cm and a width of 2 to 4 cm lanceolate to broad - lanceolate, sometimes curved, with tapered or round Spreitenbasis and acute or bespitztem top end. Your upper leaf surface and bottom is different shiny or dull 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 terete at a length of 17 to 30 mm in cross section inflorescence stem is a composite inflorescence, consisting of doldigen part inflorescences, each with about seven flowers. The peduncle is terete at a length of 9 to 14 mm in cross section.
The non- floured blue - green or frosted flower bud is at a length of 9 to 11 mm and a diameter of 5 to 6 mm club- or pear-shaped. The sepals form a calyptra, which is maintained until flowering ( anthesis ). The smooth calyptra is hemispherical or conical, and slightly beaked, shorter than the smooth flower cup ( hypanthium ) and as wide as this. The flowers are white or cream-colored.
Fruit and seeds
The fruit is stalked in a length of 12 to 20 mm and a diameter of 5 to 6 mm box -shaped, and three to vierfächerig. The disc is pressed, the fruit trays are included.
The regular and laterally flattened, boat-shaped seed has a net-like, matte to satin, red-brown seed coat. The hilum is located at the upper end of the seed.
Occurrence
The natural range of Corymbia gummifera 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 gummifera grows predominantly in dry sclerophyllous forests or open woodland on sandy or sandstone soils with low nutrient content.
Taxonomy
The first publication was made in 1788 by Joseph Gardener under the name ( basionym ) Meterosideros gummifera Gaertn. in De fructibus et Seminibus Plantarum, Volume 1, page 170, Table 34, Figure 1 The type material has the label on ex herbario Banksiano. The new combination to Corymbia gummifera ( Gaertn. ) 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. 233 Other synonyms for Corymbia gummifera ( Gaertn. ) KDHill & LASJohnson are: Eucalyptus gummifera ( Gaertn. ) Hochr. , Eucalyptus corymbosa Sm, Eucalyptus purpurascens var petiolaris DC., Eucalyptus gummifera ( Gaertn. ) Hochr. var gummifera, Eucalyptus corymbosa Sm var corymbosa, Eucalyptus corymbosus Cav. orth var, Eucalyptus longifolia Link ex Maiden nom. inval. , Eucalyptus oppositifolia Desf. nom. inval.