Eucalyptus populnea
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Eucalyptus populnea |
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Eucalyptus populnea is a species ofthe myrtle family (Myrtaceae). It occurs in the center and in the west of New South Wales as well as in the center, in the south, in the southeast and in the east of Queensland and is there “Bimbil”, “Bimbil Box”, “Bimble Box”, “Poplar Box”, “Poplar” -leaved Box "," Round-leaf Box "," Shiny-leaf Box "," White Box "," Red Box "," Egolla "or" Nankeen Gum ".
description
Appearance and leaf
Eucalyptus populnea grows as a tree that can reach heights of up to 20 meters. The bark remains on the entire trunk and on the larger branches, is gray with whitish spots and fibrous and lumpy. On the upper parts of the tree, it is smooth, shiny gray, and peels in short ribbons. The bark of the small branches is green. There are no oil glands in the marrow of the young branches or in the bark.
In Eucalyptus populnea there is heterophyllia . The leaves are always divided into a petiole and a leaf blade. The leaf blade on seedlings is 4 to 10 cm long and 1.4 to 5.5 cm wide and elliptical to ovate and green on the top and bottom of the same color. On young specimens, the leaf blade is 4.5 to 11.5 cm long and 4 to 9.5 cm wide and oval to circular and matt gray-green or shiny green. On medium-old specimens, the leaf blade is 7 to 16 cm long and 3 to 6 cm wide and elliptical, egg-shaped or circular, straight, with entire margins and matt gray-green. The leaf stalks on adult specimens are 15 to 20 mm long. The leaf blades on adult specimens with glossy green upper and lower sides of the same color are 5 to 11 cm long and 2 to 7 cm wide, elliptical, egg-shaped or rhombic, relatively thick, straight, have a rounded blade base and a pointed or blunt one top end. The raised lateral nerves extend from the median nerve at large intervals at an acute angle. The cotyledons ( cotyledons ) are upside-kidney-shaped.
Inflorescence and flower
Terminally or laterally on an inflorescence stem with a length of 5 to 11 mm in cross section, there are approximately seven to eleven-flowered or fifteen-flowered partial inflorescences in compound total inflorescences . If available, the 1 to 3 mm long pedicels are round petioles. With a length of 3 to 5 mm and a diameter of 2 to 3 mm, the flower buds are club-shaped to ovoid and not floured or frosted blue-green. The sepals form a calyptra that falls off early. The smooth calyptra is hemispherical to conical, shorter than as long as the smooth flower cup (hypanthium) and as wide as this. The flowers are white. All stamens are fertile (fertile). The flowering period extends from February to March.
Fruit and seeds
The stalked or sometimes sessile fruit is 2 to 4 mm long and 2 to 5 mm in diameter hemispherical or conical and quadruple. The disc is indented, the fruit compartments are level with the edge or protrude.
The brown or gray seed is compressed ovoid and often pointed at one end. The hilum is in the middle.
Occurrence
The natural range of Eucalyptus populnea is the center and west of New South Wales west of the Great Dividing Range , as well as the center, south, southeast and east of Queensland .
Eucalyptus populnea is widespread and often dominant in grassy, sparse forests on moderately fertile, loamy soils .
Systematics
The first description of Eucalyptus populnea in 1859 by Ferdinand von Mueller , entitled Monograph of the Eucalypt of tropical Australia in the Journal of the Proceedings of the Linnean Society, Botany , Volume 3, page 93. The specific epithet populnea is from the Latin word "populneus" derived for poplar-like, which indicates the shape of the youth papers in particular. Synonyms for Eucalyptus populnea F.Muell. are: Eucalyptus populnea F.Muell. subsp. populnea , Eucalyptus populnea F. Muell. var. populnea , Eucalyptus populnea subsp. bimbil L.ASJohnson & KDHill , Eucalyptus populifolia Hook. nom. illeg., Eucalyptus populifolia Hook. nom. illeg., Eucalyptus populifolia Hook. var. populifolia .
use
Eucalyptus populnea is considered good shade provider and is often planted as protection for other plants.
The heartwood of Eucalyptus populnea is pale brown to dark brown with a reddish brown color, hard and very durable. It has a specific weight of 820 to 885 kg / m³. The wood from Eucalyptus populnea is used to build fences.
Individual evidence
- ↑ a b Specimen search results: Eucalyptus populnea at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved April 2, 2013
- ↑ a b c APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved April 2, 2013
- ↑ a b c d e f g h i j k l m K. Hill: Eucalyptus populnea (F. Muell.) At New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Retrieved April 2, 2013
- ↑ a b c d e f g h i j k l m n o p q Eucalyptus populnea at EucaLink - A Web Guide to the Eucalypts . Retrieved April 2, 2013.
- ↑ a b c d e f g h i j k l m n Bimble Box, Poplar Box - Eucalyptus populnea in: DJ Boland, MIH Brooker, GM Chippendale, N. Hall, BPM Highland, RD Johnston, DA Kleinig, MW McDonald & JD Turner (Editor): Forest Trees of Australia . CSIRO Publishing. 5th edition 2006. pp. 450-451 on Google Books . Retrieved April 2, 2013
- ↑ Eucalyptus populnea at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed April 2, 2013.
- ↑ Rafaël Govaerts (Ed.): Eucalyptus populnea. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 2, 2013.
