Eucalyptus miniata

Eucalyptus miniata is a flowering plant in the myrtle family ( Myrtaceae ). It occurs in the far north of Australia, where it is " Bogong Gum", " Melaleuca gum ", " Manowan ", " Woollybutt ", " Northern Woollybutt " or " Darwin Woollybutt " called.

Description

Appearance and leaf

Eucalyptus miniata grows as a tree reaches the plant height 6-20 meters. The bark remains on the lower part of the stem or the entire tree is reddish brown to gray - brown and fibrous or short-fibred. On the upper parts of the tree is gray, gray - brown or red-brown and peels off in short ribbons or small, polygonal patches. Both in the marrow of the young branches as well as in the bark, there are oil glands.

In Eucalyptus miniata is available Heterophyllie. The leaves are always divided into petiole and leaf blade. The petioles of seedlings and young specimens are, as well as the leaf veins, hairy. The on top and bottom in different colors green leaf blade of seedlings is egg-shaped with a length of 4.5 to 7.5 cm and a width of 1.8 to 3.3 cm. In young specimens on top and bottom in different colors green leaf blade is ovate with a length of 8 to 12 cm and a width of 3.5 to 5 cm. At middle-aged specimens, the dull gray - green leaf blade is at a length of 10 to 16 cm and a width of 4 to 6 cm ovate to broadly lanceolate, elliptical, straight and entire. The petioles of adult specimens are narrow flattened or channel-shaped. The on top and bottom in different colors matt green leaf blades of adult specimens are at a length of 9 to 16 cm and a width of 1 to 3.5 cm narrow - lanceolate to broadly lanceolate, relatively thin, taper towards the Spreitenbasis and have a sharp or pointed upper end. You can be curved like a sickle. The raised lateral nerves go off at an obtuse angle from the midrib. The cotyledons ( cotyledons ) are kidney-shaped.

Inflorescence and flower

Constantly on a page with a length of 1.2 to 3.5 cm and a width of up to 3 mm terete in cross section, narrowly flattened or angular inflorescence stem are in a simple inflorescence about seven flowers together. When present, the flower stalks are very short. The flower buds are ovoid or clavate floured and teal with a length of 11 up to 23 mm and a diameter of 7 mm to 11 mm or frosted. The sepals are reduced to teeth on the calyptra. The striated or ribbed Calyptra is hemispherical or conical, as long and as wide as the striated or ribbed flower cup ( hypanthium ). The flowers are red or orange-red. The flowering period extends from May to July, in Western Australia by May to September.

Fruit and seeds

The sedentary or very short -stalked fruit is egg-shaped with a length from 3 to 6.5 cm and a diameter of 1.7 to 5 cm, slightly to strongly ribbed and dreifächrig. The disc is pressed, the fruit trays are included.

The gray - black seeds is pyramid or cube shaped. The hilum is centered.

Occurrence

The natural range of Eucalyptus miniata is the far north of Australia, in Queensland, the Northern Territory and Western Australia north of the 18th southern latitude. In Western Australia Eucalyptus miniata comes to independent administrative districts Broome, Derby - West Kimberley, Halls Creek and Wyndham- East Kimberley ago in the Kimberley region.

Eucalyptus miniata grows on sandy soils over sandstone or quartzite. Eucalyptus miniata is found in planes or on rocky hills.

Taxonomy

The first description of Eucalyptus miniata in 1843 by Johannes Conrad Schauer in repertory Botanices Systematicae, Volume 2, 5, p 925 The type material has the inscription " In Novae Hollandiae ora septentrionali - Occidentali in Clivis confragonis ad sinum York Sound (A. Cunn. No. Hb. 241/1820) "on. The specific epithet is derived from the Latin word miniata " miniatus " for saturnrot. This is not entirely understand, because the flower color is orange-red. A synonym for Eucalyptus miniata A.Cunn. ex Schauer is Eucalyptus aurantiaca F.Muell.

Use

The heartwood of Eucalyptus miniata red to reddish brown, often with a purple tinge, very hard and has a fine structure. It has a specific weight of from 1035 to 1100 kg / m³.

Daa wood of Eucalyptus miniata is often used as a timber for smaller structures or for temporary fences.