Eucalyptus miniata
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Eucalyptus miniata |
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| A. Cunn. ex showers |
Eucalyptus miniata is a species ofthe myrtle family (Myrtaceae). It occurs in the far north of Australia and is called "Bogong Gum", "Melaleuca Gum", "Manowan", "Woollybutt", "Northern Woollybutt" or "Darwin Woollybutt" there.
description
Appearance and leaf
Eucalyptus miniata grows as a tree that reaches heights of 6 to 20 meters. The bark remains on the lower part of the trunk or on the entire tree, is red-brown to gray-brown and fibrous or short-fibred. On the upper parts of the tree it is gray, gray-brown or red-brown and peels in short bands or small, polygonal patches. There are oil glands both in the pith of the young twigs and in the bark.
In Eucalyptus miniata is Heterophyllie ago. The leaves are always divided into a petiole and a leaf blade. The leaf stalks on seedlings and young specimens are, like the leaf veins, very hairy. The leaf blade on seedlings is green on the top and bottom and is egg-shaped with a length of 4.5 to 7.5 cm and a width of 1.8 to 3.3 cm. On young specimens, the leaf blade, which is green on the top and bottom, is ovate, 8 to 12 cm long and 3.5 to 5 cm wide. On medium-old specimens, the dull gray-green leaf blade is 10 to 16 cm long and 4 to 6 cm wide and ovoid to broadly lanceolate, elliptical, straight and with entire margins. The leaf stalks on adult specimens are narrowly flattened or channel-shaped. The leaf blades on adult specimens are dull green in different colors on the top and bottom and are 9 to 16 cm long and 1 to 3.5 cm wide, narrow-lanceolate to broad-lanceolate, relatively thin, tapering towards the base of the blade and possessing a pointed or pointed upper end. They can be curved crescent-shaped. The raised side veins extend from the central vein at an obtuse angle. The cotyledons ( cotyledons ) are kidney-shaped.
Inflorescence and flower
On the side of a peduncle with a length of 1.2 to 3.5 cm and a width of up to 3 mm in cross section, narrowly flattened or angular inflorescence stem stand together in a simple inflorescence about seven flowers. The flower stalks, if any, are very short. The flower buds are 11 to 23 mm long and 7 to 11 mm in diameter and are egg-shaped or club-shaped and floured or frosted blue-green. The sepals are reduced to teeth on the calyptra . The striped or ribbed Calyptra is hemispherical or conical, as long and as wide as the striped or ribbed flower cup (hypanthium). The flowers are red or orange-red. The flowering period extends from May to July, in Western Australia from May to September.
Fruit and seeds
The seated or very short stalked fruit is egg-shaped, slightly to strongly ribbed and three-sided, with a length of 3 to 6.5 cm and a diameter of 1.7 to 5 cm. The disc is indented, the fruit compartments are included.
The gray-black seed is pyramidal or cube-shaped. The hilum is in the middle.
Occurrence
The natural range of Eucalyptus miniata is the extreme north of Australia , in Queensland , the Northern Territory and Western Australia north of the 18th parallel south. In Western Australia, Eucalyptus miniata occurs in the independent administrative districts of Broome , Derby-West Kimberley , Halls Creek and Wyndham-East Kimberley in the Kimberley region.
Eucalyptus miniata grows on sandy soils over sandstone or quartzite . Eucalyptus miniata can be found in plains or on rocky hills.
Taxonomy
The first description of Eucalyptus miniata was made in 1843 by Johannes Conrad Schauer in repertory Botanices Systematicae , Volume 2, 5, p 925. This type of material has the inscription " In Novae Hollandiae ora septentrionali-occidentali in Clivis confragonis ad sinum York sound (A. Cunn. Hb. No. 241/1820) ". The specific epithet miniata is derived from the Latin word "miniatus" for saturn red. This is not entirely understandable 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 is red to red-brown, often with a purple tinge, very hard and has a fine structure. It has a specific weight of 1035 to 1100 kg / m³.
The wood from Eucalyptus miniata is often used as construction timber for smaller structures or for temporary fences.
Individual evidence
- ↑ a b Specimen search results: Eucalyptus miniata at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved March 25, 2013
- ↑ a b c d APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved March 25, 2013
- ↑ a b c d e f g Eucalyptus miniata at EucaLink - A Web Guide to the Eucalypts . Retrieved March 25, 2013.
- ↑ a b c d e Eucalyptus miniata in the Western Australian Flora . Retrieved March 25, 2013.
- ↑ a b c d e f g h i j Darwin Woollybutt, Woollybutt - Eucalyptus miniata in: DJ Boland, MIH Brooker, GM Chippendale, N. Hall, BPM Highland, RD Johnston, DA Kleinig, MW McDonald & JD Turner (editors) : Forest Trees of Australia . CSIRO Publishing. 5th edition 2006. pp. 272-273 on Google Books . Retrieved March 25, 2013
- ↑ Eucalyptus miniata at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed March 25, 2013.
- ↑ Rafaël Govaerts (Ed.): Eucalyptus miniata. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 25, 2013.
