Corymbia tessellaris
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| ( F.Muell. ) KDHill & LASJohnson |
Corymbia tessellaris is a species ofthe myrtle family (Myrtaceae). It occurs on the east coast of Australia , from northeastern New South Wales to the northern tip of Queensland and in the adjacenttable country tothe west and on the south coast of Papua New Guinea , where it is called "Carbeen" or "Moreton Bay Ash".
description
Appearance and leaf
Corymbia tessellaris grows as a tree that reaches heights of up to 30 meters. The bark remains on the lower part of the trunk or on the entire trunk, is checkerboard-like and matt or shiny gray to gray-black. On the upper parts of the tree it is white or gray and peels in short strips or small, polygonal patches. The small twigs have a green bark. There are oil glands in the pith, but not in the bark.
In corymbia tessellaris is Heterophyllie ago. The leaves are always divided into a petiole and a leaf blade. The leaf blade on young specimens is lanceolate to ovate or linear to narrow-lanceolate, shiny green and has stiff glandular hairs. On medium-old specimens, the leaf blade is about 24 cm long and about 0.5 cm wide, linear to narrow-lanceolate, straight, with entire margins and shiny green. The petiole on adult specimens is narrowly flattened or channel-shaped with a length of 5 to 10 mm. The leaf blade on adult specimens can be thin to relatively thick, with a length of 8 to 18 cm and a width of 1.0 to 1.8 cm, it is linear to narrow-lanceolate, straight, with a tapering blade base and a pointed upper end. The top and bottom of the leaves are evenly matt green to gray-green. The side nerves, which are barely recognizable, leave the median nerve at small intervals at an obtuse angle. On each half of the leaf there is a pronounced, continuous, so-called intramarginal nerve; it runs at a small distance along the edge of the leaf. The cotyledons ( cotyledons ) are almost circular.
Inflorescence and flower
On an inflorescence shaft with a length of 5 to 7 mm in cross-section, which is round with a pedunculate stem, stands a composite inflorescence , which consists of dold-like partial inflorescences each with one to seven flowers, which are arranged irregularly. The flower stalk is 2 to 3 mm long in cross section with a round stem.
The not blue-green floured or frosted flower bud is pear-shaped or club-shaped with a length of 4 to 6 mm and a diameter of 3 to 4 mm. The sepals form a calyptra that falls off early. The smooth calyptra is kneecap-shaped, shorter than the smooth flower cup (hypanthium) and as wide as this. The flowers are white or cream in color.
Fruit and seeds
The stalked fruit is 8 to 11 mm long and 6 to 8 mm in diameter cylindrical or egg-shaped, occasionally urn-shaped and three-fan. The disc is indented, the fruit compartments are included.
The regular and flattened, kneecap- or egg-shaped seed has a reticulate, dull to silk-matt, red or red-brown seed coat. The hilum is at the top of the seed.
Occurrence
The natural range of Corymbia tessellaris is the east coast of Australia from the northeast of New South Wales to Cape York in Queensland , as well as the adjoining table country to the west and the south coast of Papua New Guinea .
Corymbia tessellaris often thrives in sparse forests on deep, moderately to very fertile soils .
Taxonomy
It was first described in 1859 by Ferdinand von Mueller under the name ( Basionym ) Eucalyptus tessellaris F. Muell. and the title Monograph of the Eucalypti of tropical Australia in the Journal of the Proceedings of the Linnean Society, Botany , Volume 3, p. 88. The type material has the inscription “ In graminosis tam collium quam plantierum praesertim arenoso-argillaceorum a parte austro-orientali sinus Carpentaria usque ad sinum Moreton Bay. Anth. Nov., Dec. " on. The new combination to Corymbia tessellaris (F.Muell.) KDHill & LASJohnson took place in 1995 under the title Systematic studies in the eucalypts. 7. A revision of the bloodwoods, genus Corymbia (Myrtaceae) in Telopea , Volume 6 (2-3), p. 402. The specific epithet tessellaris comes from Latin and indicates the checkerboard structure of the bark. Further synonyms for Corymbia tessellaris (F.Muell.) KDHill & LASJohnson are Eucalyptus tessellaris F.Muell. var. tessellaris , Eucalyptus hookeri F. Muell. and Eucalyptus viminalis Hook. nom. illegal.
Intergradations or hybrids of Corymbia tessellaris × Corymbia confertifloria , of Corymbia tessellaris × Corymbia torelliana , of Corymbia tessellaris × Corymbia peltata and of Corymbia tessellaris × Corymbia leichhardtii are known, those of Corymbia tessellaris × Corymbia blakeimbia are suspected.
use
The heartwood of Corymbia tessellaris is medium to dark brown and has a specific weight of around 1040 kg / m³. It is used as construction and furniture wood and is used, for example, in car construction and for the production of railway sleepers, floors, cladding and fences.
Individual evidence
- ↑ a b Specimen search results: Corymbia tessellaris at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved February 14, 2013
- ↑ a b c d e APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved February 14, 2013
- ↑ a b c d e f g h i Corymbia tessellaris at EucaLink - A Web Guide to the Eucalypts . Retrieved February 14, 2013
- ↑ a b c d e f K. Hill: Corymbia tessellaris (F. Muell.) KDHill & LASJohnson. at New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Retrieved February 14, 2013
- ↑ a b Corymbia tessellaris at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed February 14, 2013.
- ^ Rafaël Govaerts (Ed.): Corymbia tesselaris. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 14, 2013.
- ↑ Carbeen . Department of Agriculture, Fisheries and Forestry. Queensland Government ( March 7, 2013 memento on the Internet Archive ). Retrieved February 14, 2013
