Eucalyptus oleosa
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Eucalyptus oleosa |
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| F. Garbage. ex Miq. |
Eucalyptus oleosa is a species ofthe myrtle family (Myrtaceae). It occurs in the south of Australia and is called “Straggly Gum”, “Peeneri”, “Acorn Mallee”, “Giant Mallee”, “Glossy-leaved Mallee”, “Great Mallee”, “Narrow-leaved Giant Mallee”, “Ningham Mallee ”,“ Oil Mallee ”,“ Oily Mallee ”,“ Oleosa Mallee ”,“ Red Mallee ”,“ Glossy-leaved Red Mallee ”or“ Water Mallee ”.
description
Appearance and leaf
Eucalyptus oleosa grows in the form of the mallee - eucalyptus , this is a growth form that is more shrub -shaped than tree-shaped , there are usually several trunks that form a lignotuber , sometimes as a tree , and reaches heights of 6, rarely up to 12 Meter. The bark remains on the lower 1 to 2 meters of the trunk, is pale brown and fibrous and lumpy. On the upper parts of the tree it is smooth, glossy gray, gray-brown or red and peels in ribbons. The bark of the small branches is green. There are no oil glands either in the bark or in the marrow of the young branches.
In Eucalyptus oleosa , heterophyllia is present. On young specimens, the leaves are linear, matt gray-green or green, arranged in a spiral and crowded. On medium-old specimens, the sitting leaves are about 8 cm long and about 0.8 cm wide, also linear, straight, with entire margins and dull gray-green or green. The green leaves of the same color on the upper and lower sides of the adult specimens are divided into a petiole and a leaf blade. Your petiole is 8 to 18 mm long and narrowly flattened or channel-shaped. Your leaf blade is 7 to 10 cm long and 0.8 to 1.5 cm wide, narrowly lanceolate or lanceolate, straight, relatively thick, tapers towards the base of the blade and has a pointed upper end. The side nerves, which are barely visible, extend from the median nerve at medium intervals at an acute angle. The cotyledons ( cotyledons ) are in two parts.
Inflorescence and flower
On the side of an inflorescence stem with a length of 7 to 12 mm and a width of up to 3 mm in cross-section, narrowly flattened or angular inflorescence stem, eleven to thirteen flowers stand together in a simple inflorescence . The 1 to 5 mm long pedicels are stalk-round. The not blue-green floured or frosted flower buds are cylindrical or egg-shaped with a length of 5 to 8 mm and a diameter of 3 to 4 mm. The sepals form a calyptra that falls off early. The smooth calyptra is hemispherical or conical, twice as long as the smooth flower cup (hypanthium) and as wide as it, or as long as the flower cup and narrower than this. The | flowers are white, creamy white. or yellow. The flowering period in Western Australia extends from November to December.
fruit
The stalked fruit is spherical and three-sided with a length and a diameter of 4 to 6 mm. The disc is pressed in, the fruit fans stick out. and taper towards the tips.
Occurrence
The natural ranges of Eucalyptus oleosa are in the extreme southwest of New South Wales , in the northwest of Victoria , in the southern half of South Australia and in the south and southeast of Western Australia . In Western Australia occurs Eucalyptus oleosa in the autonomous counties Coolgardie , Dundas , Esperance , Gnowangerup , Kalgoorlie , Kondinin , Lake Grace , Laverton , Leonora , Menzies , Mukinbudin , Ravensthorpe , Yalgoo and Yilgarn in the regions Goldfields-Esperance , Great Southern , Mid West and Wheatbelt on.
Eucalyptus oleosa grows on sand and clay soils and on limestone . Eucalyptus oleosa is mainly found in coastal regions, on plains, sand hills in the desert and in gravel pits.
Systematics
The first description of Eucalyptus oleosa was made in 1856 by Friedrich Anton Wilhelm Miquel entitled Stirpes novo Hollandas a Ferd. Mullero collectas in Nederlandsch Kruidkundig Archief , Volume 4 (1), p. 127. The type material has the inscription “ Marble-range (Wilhelmi); Murray-Scrub (Dr. BEHR) ”. Synonyms for Eucalyptus oleosa F.Muell. ex Miq. are Eucalyptus laurifolia Blakely nom. inval. Per. syn., Eucalyptus oleosa var. angustifolia Maiden, Eucalyptus socialis var. laurifolia F. Muell. ex Maiden nom. inval. Per. syn. and Eucalyptus turbinata Behr & F. Muell. ex Miq.
There are four to seven subspecies of Eucalyptus oleosa F. Muell. ex Miq .:
- Eucalyptus oleosa subsp. ampliata LASJohnson & KDHill, Syn .: Eucalyptus oleosa subsp. wylieana LASJohnson & KDHill
- Eucalyptus oleosa subsp. corvina LASJohnson & KDHill, Syn .: Eucalyptus oleosa var. corvina LASJohnson & KDHill, Eucalyptus longicornis subsp. corvina (LASJohnson & KDHill) D. Nicolle
- Eucalyptus oleosa subsp. cylindroidea LASJohnson & KDHill, syn .: Eucalyptus oleosa var. cylindroidea LASJohnson & KDHill, Eucalyptus longicornis subsp. cylindroidea (LASJohnson & KDHill) D. Nicolle
- Eucalyptus oleosa F. Muell. ex Miq. oleosa , syn .: Eucalyptus oleosa subsp. repleta LASJohnson & KDHill, Eucalyptus grasbyi Maiden & Blakely, Eucalyptus oleosa var. obtusa CAGardner
- Eucalyptus oleosa subsp. repleta LASJohnson & KDHill, Syn .: Eucalyptus oleosa F.Muell. ex Miq. subsp. oleosa
- Eucalyptus oleosa subsp. victima LASJohnson & KDHill, Syn .: Eucalyptus oleosa subsp. ampliata LASJohnson & KDHill
- Eucalyptus oleosa subsp. wylieana LASJohnson & KDHill, Syn .: Eucalyptus oleosa subsp. ampliata LASJohnson & KDHill
Web links
Individual evidence
- ↑ a b Specimen search results: Eucalyptus oleosa at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved March 28, 2013
- ↑ a b c d APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved March 28, 2013
- ↑ a b c d e f Eucalyptus oleosa in the Western Australian Flora . Retrieved March 28, 2013.
- ↑ a b c d e f g h i j k K. Hill: Eucalyptus oleosa F. Muell. ex Miq. at New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Retrieved March 28, 2013
- ↑ a b c d e f g h i j k l m n o p q r s Eucalyptus oleosa at EucaLink - A Web Guide to the Eucalypts . Retrieved March 28, 2013.
- ↑ Eucalyptus oleosa at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed March 28, 2013.
- ↑ a b Rafaël Govaerts (Ed.): Eucalyptus oleosa. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 28, 2013.