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Corymbia Grandifolia
''Corymbia grandifolia'', commonly known as the cabbage gum, large-leaved cabbage gum and the paper-fruited bloodwood, is a species of tree that is endemic to northern Australia. It has smooth bark, egg-shaped to broadly elliptic to lance-shaped adult leaves, flowers buds in groups of three or seven, creamy white flowers and cup-shaped to cylindrical fruit. Description ''Corymbia grandifolia'' is a tree that typically grows to a height of and forms a lignotuber. It has smooth white to pale grey bark that is shed in thin flakes. Young plants and coppice regrowth have egg-shaped to broadly lance-shaped leaves that are long, wide and petiolate. Adult leaves are the same shade of glossy green on both sides, egg-shaped to broadly elliptic to lance-shaped, long and wide on a petiole long. The tree loses its leaves in the dry season. The flower buds are arranged in leaf axils on the leafless branchlets, on a branched peduncle up to long, each branch of the peduncle with thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katherine, Northern Territory
Katherine is a town in the Northern Territory of Australia. It is situated on the Katherine River, after which it is named, southeast of Darwin. It is the fourth largest settlement in the Territory and is known as the place where "The outback meets the tropics". Katherine had an urban population of approximately 6,300 at the 2016 Census. Katherine is also the closest major town to RAAF Base Tindal, located southeast, and provides education, health, local government services and employment opportunities for the families of Defence personnel stationed there. In the , the base had a residential population of 857, with only around 20% of the workforce engaged in employment outside of defence, the majority commuting to work in Katherine. Katherine is also the central hub of the great "Savannah Way" which stretches from Cairns in north Queensland to Broome in the Kimberley region of Western Australia. Beginning as an outpost established with the Australian Overland Telegraph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (botanist, Born 1773)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myrtales Of Australia
The Myrtales are an order of flowering plants placed as a sister to the eurosids II clade as of the publishing of the ''Eucalyptus grandis'' genome in June 2014. The APG III system of classification for angiosperms still places it within the eurosids. This finding is corroborated by the placement of the Myrtales in the Malvid clade by the One Thousand Plant Transcriptomes Initiative. The following families are included as of APGIII: * Alzateaceae S. A. Graham * Combretaceae R. Br. ( leadwood family) * Crypteroniaceae A. DC. * Lythraceae J. St.-Hil. ( loosestrife and pomegranate family) * Melastomataceae Juss. (including Memecylaceae DC.) * Myrtaceae Juss. (myrtle family; including Heteropyxidaceae Engl. & Gilg, Psiloxylaceae Croizat) * Onagraceae Juss. (evening primrose and Fuchsia family) * Penaeaceae Sweet ex Guill. (including Oliniaceae Arn., Rhynchocalycaceae L. A. S. Johnson & B. G. Briggs) * Vochysiaceae A. St.-Hil. The Cronquist system gives essentially the same co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corymbia
''Corymbia'', commonly known as bloodwoods, is a genus of about one hundred species of tree that, along with ''Eucalyptus'', '' Angophora'' and several smaller groups, are referred to as eucalypts. Until 1990, corymbias were included in the genus ''Eucalyptus'' and there is still considerable disagreement among botanists as to whether separating them is valid. As of January 2020, ''Corymbia'' is an accepted name at the Australian Plant Census. Description Eucalypts in the genus ''Corymbia'' are trees, sometimes mallee-like, that either have rough, fibrous or flaky bark, or smooth bark that is shed in small flakes or short strips. Young plants and coppice regrowth have leaves that differ from adult leaves. The adult leaves are arranged alternately (strictly disjunct opposite, but appearing alternate), with oil glands. The flower buds are arranged in groups on a branching peduncle, each branch usually with seven buds, but with the pedicels of differing lengths, so that the inflo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Corymbia Species
The following is a list of species in the genus ''Corymbia'' accepted by the Australian Plant Census as at April 2023. Species *'' Corymbia abbreviata'' ( Blakely & Jacobs) K.D.Hill & L.A.S.Johnson – scraggy bloodwood (W.A., N.T.) *'' Corymbia abergiana'' ( F. Muell.) K.D.Hill & L.A.S.Johnson – range bloodwood, Rockingham Bay bloodwood (Qld.) *''Corymbia aparrerinja'' K.D.Hill & L.A.S.Johnson – ghost gum (N.T., Qld., W.A.) *'' Corymbia arafurica'' K.D.Hill & L.A.S.Johnson (N.T.) *'' Corymbia arenaria'' ( Blakely) K.D.Hill & L.A.S.Johnson – bundah bundah black bloodwood (W.A.) *'' Corymbia arnhemensis'' ( D.J.Carr & S.G.M.Carr) K.D.Hill & L.A.S.Johnson – Katherine Gorge bloodwood (N.T.) *'' Corymbia aspera'' (F.Muell.) K.D.Hill & L.A.S.Johnson – rough-leaved ghost gum, rough leaf range gum, desert bloodwood, Brittle Range gum, snappy gum (W.A., N.T., Qld.) *'' Corymbia aureola'' ( Brooker & A.R.Bean) K.D.Hill & L.A.S.Johnson – yellowjacket, yellow bloodwood (Qld.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert River (Queensland)
The Gilbert River is located in Far North Queensland, Australia. When combined with the Einasleigh River, the river system is the largest river system in northern Australia. Features and location The Gilbert River rises below Conical Hill in the Einasleigh Uplands, draining the eastern slopes of the Gregory Range and the western slopes of the Newcastle Range, north of . The river flows generally northwest, joined by forty tributaries that drain the Blackbraes National Park including, from source to mouth, the Styx, Percy, Robertson, Langdon, Little, and Einasleigh rivers and numerous creeks. North of the Gilbert discharges into the Gulf of Carpentaria. However, northwest of an anabranch of the river forms confluence with the Smithburne River, also emptying into the Gulf. The Gilbert River has a catchment area of of which , or a third of the total catchment, is a vast estuarine delta approximately wide that largely consists of tidal flats and mangrove swamps across the G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Carpentaria
The Gulf of Carpentaria (, ) is a large, shallow sea enclosed on three sides by northern Australia and bounded on the north by the eastern Arafura Sea (the body of water that lies between Australia and New Guinea). The northern boundary is generally defined as a line from Slade Point, Queensland (the northwestern corner of Cape York Peninsula) in the northeast, to Cape Arnhem on the Gove Peninsula, Northern Territory (the easternmost point of Arnhem Land) in the west. At its mouth, the Gulf is wide, and further south, . The north-south length exceeds . It covers a water area of about . The general depth is between and does not exceed . The tidal range in the Gulf of Carpentaria is between . The Gulf and adjacent Sahul Shelf were dry land at the peak of the last ice age 18,000 years ago when global sea level was around below its present position. At that time a large, shallow lake occupied the centre of what is now the Gulf. The Gulf hosts a submerged coral reef provinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melville Island (Australia)
Melville Island ( Tiwi: ''Yermalner'') is an island in the eastern Timor Sea, off the coast of the Northern Territory, Australia. Along with Bathurst Island and nine smaller uninhabited islands, it forms part of the group known as the Tiwi Islands, which are under the jurisdiction of the Northern Territory in association with the Tiwi Land Council as the regional authority. History Indigenous people have occupied the area that became the Tiwi Islands for at least 40,000 years. It is said that the first European to sight the island was Abel Tasman in 1644. Explorer Phillip Parker King (son of governor of New South Wales Philip Gidley King) named it for Robert Dundas, 2nd Viscount Melville, first Lord of the Admiralty, who is also commemorated by the much larger Melville Island in the Canadian Arctic Archipelago. Shortly after this, the British made the first attempt to settle Australia's north coast, at the short-lived Fort Dundas on Melville Island. The settlement lasted fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathurst Island (Northern Territory)
Bathurst Island (Iwaidja: ''Nguyu'') (, ) is one of the Tiwi Islands in the Northern Territory off the northern coast of Australia along with Melville Island. __TOC__ Description The largest settlement on Bathurst is Wurrumiyanga (known as Nguiu until 2010), in the south-east, with a population of around 1,560. Located on the south east corner of Bathurst Island, Wurrumiyanga is approximately north of Darwin. The second largest settlement is Wurakuwu, with a population of 50, located northwest of Wurrumiyanga. The third settlement on the island is a small family outstation called ''4 Mile Camp'', about west of Wurrumiyanga. History Aboriginal Australians have occupied the area that became the Tiwi Islands for at least 40,000 years. On 5 May 1623, Willem Jootszoon Van Colster (or Coolsteerdt), in the ship ''Arnhem'' named the island De Speult Eylandt, in honour of Herman van Speult, Governor of Ambon, who had commissioned the voyage of exploration. In 1828, the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kimberley (Western Australia)
The Kimberley is the northernmost of the nine regions of Western Australia. It is bordered on the west by the Indian Ocean, on the north by the Timor Sea, on the south by the Great Sandy Desert, Great Sandy and Tanami Desert, Tanami deserts in the region of the Pilbara, and on the east by the Northern Territory. The region was named in 1879 by government surveyor Alexander Forrest after Secretary of State for the Colonies John Wodehouse, 1st Earl of Kimberley. History The Kimberley was one of the earliest settled parts of Australia, with the first humans landing about 65,000 years ago. They created a complex culture that developed over thousands of years. Yam (vegetable), Yam (''Dioscorea hastifolia'') agriculture was developed, and rock art suggests that this was where some of the earliest boomerangs were invented. The worship of Wandjina deities was most common in this region, and a complex theology dealing with the transmigration of souls was part of the local people's r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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