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Gossypium Sturtianum
''Gossypium sturtianum'', or Sturt's desert rose, is a woody shrub, closely related to cultivated cotton, found in most mainland states of Australia and the Northern Territory. It is also known as the Darling River rose, cotton rosebush and Australian cotton. The plant has a life span of about 10 years, growing from 1–2 m tall and 1–2 m wide. The flowers are up to 12 cm in diameter: they can be seen for most of the year but peak in late winter. The colour of the petals ranges from pale pink to dark purple to maroon. The five petals are arranged in a whorl and have a dark red centre. The leaves are different shades of green, round and strongly scented when crushed. Taxonomy Two varieties are often recognized. * ''G. sturtianum'' var. ''nandewarense'' (Derera) Fryxell is found only in north-eastern New South Wales (around Narrabri) and the Expedition Range in central Queensland. * ''G. sturtianum'' var. ''sturtianum'' is more common and is found everywhere else. ''G. stu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Hamlyn Willis
James Hamlyn Willis (28 January 1910 – 10 November 1995) was an Australian botanist. He described 64 new species of plants, and published more than 880 works including the landmark two-volume ''A Handbook to plants in Victoria'' between 1962 and 1973. Life Willis was born in Oakleigh, Victoria in 1910. In 1913 he moved with his family to Stanley on the northern coast of Tasmania, Australia, where they remained until returning to Victoria in 1924. He attended Melbourne High School and in 1928, following receipt of a scholarship, began studies at the Victorian School of Forestry in Creswick, graduating with a Diploma of Forestry in 1930. For the next seven years he was employed by the Forests Commission of Victoria as a forest officer. In 1937 Willis joined the National Herbarium of Victoria and commenced studies at the University of Melbourne, graduating with a Bachelor of Science (Honours) in 1940. Between 1958 and 1959, he held the position of Australian Botanical Liaiso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Soil Classification
The Australian Soil Classification is the classification system currently used to describe and classify soils in Australia. It is a general-purpose, hierarchical classification system, and consists of five categorical levels from the most general to the most specific: ''order'', ''suborder'', ''great group'', ''subgroup'', and ''family''. An interactive, online key is available. The Australian Soil Classification supersedes other classification systems previously developed for Australian soils, including the Factual Key (1960) and the Handbook of Australian Soils (1968). The Australian Soil Classification was developed by Ray Isbell, a retired soil scientist with CSIRO, and first published in 1996. A revised first edition was published in 2002, a second edition in 2010 and a third edition in March 2021. Since Ray Isbell's death in 2001 the National Committee on Soil and Terrain has led the updates and improvements to the classification and this committee is now listed as a co-auth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Queensland
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of New South Wales ...
*''The Flora that are native to New South Wales, Australia''. :*''Taxa of the lowest rank are always included. Higher taxa are included only if endemic''. *The categorisation scheme follows the World Geographical Scheme for Recording Plant Distributions, in which :* Jervis Bay Territory, politically a Commonwealth of Australia territory, is treated as part of New South Wales; :* the Australian Capital Territory, politically a Commonwealth of Australia territory, is treated as separate but subordinate to New South Wales; :* Lord Howe Island, politically part of New South Wales, is treated as subordinate to Norfolk Island. {{CatAutoTOC New South Wales Biota of New South Wales New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malvales Of Australia
The Malvales are an order of flowering plants. As circumscribed by APG II-system, the order includes about 6000 species within 9 families. The order is placed in the eurosids II, which are part of the eudicots. The plants are mostly shrubs and trees; most of its families have a cosmopolitan distribution in the tropics and subtropics, with limited expansion into temperate regions. An interesting distribution occurs in Madagascar, where three endemic families of Malvales (Sphaerosepalaceae, Sarcolaenaceae and Diegodendraceae) occur. Many species of Malvaceae ''sensu lato'' are known for their wood, with that of '' Ochroma'' (balsa) being known for its lightness, and that of ''Tilia'' (lime, linden, or basswood) as a popular wood for carving. Fruit of the cacao tree (''Theobroma cacao'') are used as an ingredient for chocolate. Kola nuts (genus '' Cola'') are notable for their high content of caffeine and, in past, were commonly used for preparing of various cola drinks. Other we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gossypium
''Gossypium'' () is a genus of flowering plants in the tribe Gossypieae of the mallow family, Malvaceae, from which cotton is harvested. It is native to tropical and subtropical regions of the Old and New Worlds. There are about 50 ''Gossypium'' species, making it the largest genus in the tribe Gossypieae, and new species continue to be discovered. The name of the genus is derived from the Arabic word ''goz'', which refers to a soft substance. Cotton is the primary natural fibre used by humans today, amounting to about 80% of world natural fibre production. Where cotton is cultivated, it is a major oilseed crop and a main protein source for animal feed. Cotton is thus of great importance for agriculture, industry and trade, especially for tropical and subtropical countries in Africa, South America and Asia. Consequently, the genus ''Gossypium'' has long attracted the attention of scientists. The origin of the genus ''Gossypium'' is dated to around 5–10 million years ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flag Of The Northern Territory
The current state flag of the Northern Territory was officially adopted by the Northern Territory, Australia, in 1978. The Northern Territory has been in existence since 1911, but did not hoist its first flag until self-government in 1978. History The flag of the Northern Territory was officially acknowledged and raised for the first time in a ceremony celebrating self-government, on the esplanade in Darwin, the Territorial capital, on 1 July 1978. The ceremony was further acknowledged by a 19-gun salute from HMAS ''Derwent''. As the Northern Territory never had colonial status or a prior flag, it was decided that an original design would be created. The flag was designed by Robert Ingpen, a prominent artist originally from Drysdale, Victoria. Ingpen used a number of designs suggested by the public as a basis for his final design. Design The flag differs from the flags of the Australian states as it does not include the British Blue Ensign. The flag of the Australian Capita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Australian Floral Emblems
This is a list of Australian floral emblems. It encompasses the national flower and the official flowers of the constituent states. History After the Federation of Australia that took place in 1901, the upsurge in nationalism led to the search for an official national floral emblem. Archibald Campbell had founded the Wattle Club in Victoria in 1899 to promote interest in and profile of the wattle as a unique Australian flower. The New South Wales waratah was considered alongside the wattle ''Acacia pycnantha'', although lost out to the latter in 1912. The economist and botanist R. T. Baker proposed that the waratah's endemism to the Australian continent made it a better choice than the wattle, as well as the prominence of its flowers. The South Australian ''Evening News'' also supported the bid, but to no avail. In New South Wales, the New South Wales waratah was proclaimed as the official floral emblem of the state in 1962 by the then governor Sir Eric Woodward, after being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Sturt
Charles Napier Sturt (28 April 1795 – 16 June 1869) was a British officer and explorer of Australia, and part of the European exploration of Australia. He led several expeditions into the interior of the continent, starting from Sydney and later from Adelaide. His expeditions traced several of the westward-flowing rivers, establishing that they all merged into the Murray River, which flows into the Southern Ocean. He was searching to prove his own passionately held belief that an " inland sea" was located at the centre of the continent. He reached the rank of Captain, served in several appointed posts, and on the Legislative Council. Born to British parents in Bengal, British India, Sturt was educated in England for a time as a child and youth. He was placed in the British Army because his father was not wealthy enough to pay for Cambridge. After assignments in North America, Sturt was assigned to accompany a ship of convicts to Australia in 1827. Finding the place to his lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruminant
Ruminants (suborder Ruminantia) are hoofed herbivorous grazing or browsing mammals that are able to acquire nutrients from plant-based food by fermenting it in a specialized stomach prior to digestion, principally through microbial actions. The process, which takes place in the front part of the digestive system and therefore is called foregut fermentation, typically requires the fermented ingesta (known as cud) to be regurgitated and chewed again. The process of rechewing the cud to further break down plant matter and stimulate digestion is called rumination. The word "ruminant" comes from the Latin ''ruminare'', which means "to chew over again". The roughly 200 species of ruminants include both domestic and wild species. Ruminating mammals include cattle, all domesticated and wild bovines, goats, sheep, giraffes, deer, gazelles, and antelopes.Fowler, M.E. (2010).Medicine and Surgery of Camelids, Ames, Iowa: Wiley-Blackwell. Chapter 1 General Biology and Evolution addresses th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gossypol
Gossypol () is a natural phenol derived from the cotton plant (genus '' Gossypium''). Gossypol is a phenolic aldehyde that permeates cells and acts as an inhibitor for several dehydrogenase enzymes. It is a yellow pigment. The structure exhibits atropisomerism, with the two enantiomers having different biochemical properties. Among other applications, it has been tested as a male oral contraceptive in China. In addition to its putative contraceptive properties, gossypol has also long been known to possess antimalarial properties. Biosynthesis Gossypol is a terpenoid aldehyde which is formed metabolically through acetate via the isoprenoid pathway. The sesquiterpene dimer undergoes a radical coupling reaction to form gossypol. The biosynthesis begins when geranyl pyrophosphate (GPP) and isopentenyl pyrophosphate (IPP) are combined to make the sesquiterpene precursor farnesyl diphosphate (FPP). The cadinyl cation (1) is oxidized to 2 by (+)-δ-cadinene synthase. The (+)-δ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slopes
In mathematics, the slope or gradient of a line is a number that describes both the ''direction'' and the ''steepness'' of the line. Slope is often denoted by the letter ''m''; there is no clear answer to the question why the letter ''m'' is used for slope, but its earliest use in English appears in O'Brien (1844) who wrote the equation of a straight line as and it can also be found in Todhunter (1888) who wrote it as "''y'' = ''mx'' + ''c''". Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line. Sometimes the ratio is expressed as a quotient ("rise over run"), giving the same number for every two distinct points on the same line. A line that is decreasing has a negative "rise". The line may be practical – as set by a road surveyor, or in a diagram that models a road or a roof either as a description or as a plan. The ''steepness'', incline, or grade of a line is measured by the absolute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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