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Basedowia (plant)
''Basedowia'' is a monotypic genus of flowering plants in the aster family, Asteraceae, containing the single species ''Basedowia tenerrima''.Threatened Species Scientific Committee''Basedowia tenerrima'' (a daisy).Advice to the Minister for the Environment, Heritage and the Arts from the Threatened Species Scientific Committee (the Committee) on Amendments to the list of Threatened Species under the Environment Protection and Biodiversity Conservation Act 1999. This plant is endemic to northern South Australia, where it occurs in the Everard and Musgrave Ranges in Anangu Pitjantjatjara Yankunytjatjara. It is known from six locations. It has a disjunct distribution, occurring in patches of appropriate habitat that are spaced widely. This is an ephemeral annual herb with thin, green leaves sheathing thin stems and rounded, white flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Georg Pritzel
Ernst Georg Pritzel (15 May 1875 – 6 April 1946) was a German botanist. He is known for his research in the fields of phytogeography and taxonomy. He contributed works on Lycopodiaceae, Psilotaceae and Pittosporaceae to Engler & Prantl’s "Die Natürlichen Pflanzenfamilien".Council of Heads of Australasian Herbaria, Australian National Herbarium (biography) In 1900–02, with , he collected plants in , |
Monotypic Taxon
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories by area, and second smallest state by population. It has a total of 1.8 million people. Its population is the second most highly centralised in Australia, after Western Australia, with more than 77 percent of South Australians living in the capital Adelaide, or its environs. Other population centres in the state are relatively small; Mount Gambier, the second-largest centre, has a population of 33,233. South Australia shares borders with all of the other mainland states, as well as the Northern Territory; it is bordered to the west by Western Australia, to the north by the Northern Territory, to the north-east by Queensland, to the east by New South Wales, to the south-east by Victoria, and to the south by the Great Australian Bight.M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Everard Ranges
The Everard Ranges, officially known as The Everard Ranges, is a range of low rounded granite hills located in the Australian state of South Australia in the Aṉangu Pitjantjatjara Yankunytjatjara lands about west of Mintabie. It is of Palaeocene origin between 20 and 60 million years ago, in Central Australia . Rising into domes above a Cenozoic peneplain, which is here about above sea level., they were named by Ernest Giles. after a cattle station called " Everard Park", and consist of monoliths or bornhardts, rich in caves and overhangs with Aboriginal rock painting galleries. The ranges are similar to Uluru and Kata Tjuta. Giles described them in his book, ''Australia Twice Traversed'' as follows: ''"Arriving at the first hills of the Everard, I found they were all very peculiar, bare, red, granite mounds, being the most extraordinary ranges one could possibly imagine, if indeed any one could imagine such a scene. They have thousands of acres of bare rock, pil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musgrave Ranges
Musgrave Ranges is a mountain range in Central Australia, straddling the boundary of South Australia (Anangu Pitjantjatjara Yankunytjatjara) and the Northern Territory (MacDonnell Shire), extending into Western Australia. It is between the Great Victoria Desert to the south and the Gibson Desert to the north. They have a length of and many peaks that have a height of more than , the highest being Mount Woodroffe at . Inhabitants They were originally inhabited by the indigenous Yankunytjatjara people. The English explorer William Gosse and his team were the first white people to visit the region in the 1870s. Gosse named the mountains after Anthony Musgrave, then Governor of South Australia. At the start of the 20th century, Yankunytjatjara people began migrating east, and groups of Pitjantjatjara moved into the Musgrave region from the west. Today, the majority of the families in the communities of Amata and Kaltjiti identify as Pitjantjatjara. In a historic decision freehold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anangu Pitjantjatjara Yankunytjatjara
Aṉangu Pitjantjatjara Yankunytjatjara, also known as APY, APY Lands or ''the Lands'', is a large, sparsely-populated local government area (LGA) for Aboriginal people, located in the remote north west of South Australia. Some of the aṉangu (people) of the Western Desert cultural bloc, in particular Pitjantjatjara, Yankunytjatjara and Ngaanyatjarra peoples, inhabit the Lands. Governance of the area is determined by the '' Anangu Pitjantjatjara Yankunytjatjara Land Rights Act 1981'' (or APYLRA), whereby an elected executive board reports to the Premier of South Australia. The APY administration centre of is located at Umuwa. A large portion of the APY Lands was formerly the North-West Aboriginal Reserve. History Early history The Pitjantjatjara and Yankunytjatjara people (''aṉangu'') had lived in this area for many thousands of years. Even after the British began to colonise the Australian continent from 1788 onwards, and the colonisation of South Australia from 1836, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjunct Distribution
In biology, a taxon with a disjunct distribution is one that has two or more groups that are related but considerably separated from each other geographically. The causes are varied and might demonstrate either the expansion or contraction of a species' range. Range fragmentation Also called range fragmentation, disjunct distributions may be caused by changes in the environment, such as mountain building and continental drift or rising sea levels; it may also be due to an organism expanding its range into new areas, by such means as rafting, or other animals transporting an organism to a new location (plant seeds consumed by birds and animals can be moved to new locations during bird or animal migrations, and those seeds can be deposited in new locations in fecal matter). Other conditions that can produce disjunct distributions include: flooding, or changes in wind, stream, and current flows, plus others such as anthropogenic introduction of alien introduced species either acciden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ephemeral
Ephemerality (from the Greek word , meaning 'lasting only one day') is the concept of things being transitory, existing only briefly. Academically, the term ephemeral constitutionally describes a diverse assortment of things and experiences, from digital media to types of streams. "There is no single definition of ephemerality". With respect to unique performances, for example, it has been noted that " hemerality is a quality caused by the ebb and flow of the crowd's concentration on the performance and a reflection of the nostalgic character of specific performances". Because different people may value the passage of time differently, ephemerality may be a relative, perceptual concept: "In brief, what is short-lived may not be the object itself, but the attention we afford it".Ronald Beiner, ''Political Philosophy: What It Is and Why It Matters'' (2014), p. 10. Ephemerality and nature Geographical features An ephemeral stream is that which only exists following precipitation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudanthium
A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, composite flowers, or capitula, which are special types of inflorescences in which anything from a small cluster to hundreds or sometimes thousands of flowers are grouped together to form a single flower-like structure. Pseudanthia take various forms. The real flowers (the florets) are generally small and often greatly reduced, but the pseudanthium itself can sometimes be quite large (as in the heads of some varieties of sunflower). Pseudanthia are characteristic of the daisy and sunflower family (Asteraceae), whose flowers are differentiated into ray flowers and disk flowers, unique to this family. The disk flowers in the center of the pseudanthium are actinomorphic and the corolla is fused into a tube. Flowers on the periphery are zygomorp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnaphalieae
The Gnaphalieae are a tribe of flowering plants in the family Asteraceae. It is most closely related to the tribes Anthemideae, Astereae, and Calenduleae. Characteristics This group is most diverse in South America, Southern Africa and Australia. There are only a few genera with species native to temperate regions: ''Anaphalis'', ''Antennaria'', ''Gamochaeta'', ''Helichrysum'', ''Leontopodium'' (Edelweiss), '' Phagnalon'', ''Diaperia'', and ''Pseudognaphalium''. The classification of the tribe into subtribes is unclear, with a number of past classifications not being supported by late 20th-century evidence. Genera Gnaphalieae genera recognized by the Global Compositae Database as April 2022: *'' × Filfia'' *'' Acanthocladium'' *''Achyrocline'' *''Acomis'' *'' Actinobole'' *'' Alatoseta'' *''Ammobium'' *'' Amphiglossa'' *'' Anaphalioides'' *''Anaphalis'' *'' Anaxeton'' *'' Ancistrocarphus'' *'' Anderbergia'' *'' Anemocarpa'' *'' Angianthus'' *''Antennaria'' *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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