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Rhizanthella Johnstonii
''Rhizanthella johnstonii'', commonly known as south coast underground orchid, is a species of flowering plant in the orchid family and is endemic to the southwest of Western Australia. It is a subterranean herb that has a horizontal rhizome and a head of up to sixty small white flowers with a pink tinge, surrounded by relatively large, cream-coloured to pale pinkish cream bracts. Description ''Rhizanthella johnstonii'' is a leafless, sympodial, subterranean herb with a horizontal rhizome below the soil surface with an erect peduncle up to long. Up to sixty small, white flowers tinged with pink are arranged in eight to twelve spiral rows, each with six to eight flowers wide, surrounded by six to eight cream-coloured to pale pinkish cream bracts. In other respects, it is similar to '' R. gardneri''. Taxonomy and naming ''Rhizanthella johnstonii'' was first formally described in 2018 by Kingsley Dixon and Maarten Christenhusz in the journal ''Phytotaxa'' from specimens collec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingsley Wayne Dixon
Kingsley Wayne Dixon (Ph.D.) is an Australian botanist currently working as a professor at Curtin University. He was the founding Director of Science at Kings Park and Botanic Gardens, and helped to establish the laboratories there as among the world's leading. Early life Dixon grew up in the Perth suburb of Morley, Western Australia. He would spend his time exploring the bushland that existed in the suburb during his childhood, which encouraged his interest in botany. Career Dixon received a Bachelor of Science (Hons) and a PhD from the University of Western Australia (UWA). Dixon was the founding Director of Science at Kings Park and Botanic Gardens from 1982 to 2014. Before working as a professor at Curtin University, he was a professor at UWA. One of Dixon's most notable achievements is the 1992 discovery of smoke as a cause for the germination of Australian plants after bushfires. He later helped to show that plant species in other parts of the world also have germin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Munglinup, Western Australia
Munglinup is a small town located in the Shire of Ravensthorpe in the Goldfields–Esperance region of Western Australia. The town lies on the South Coast Highway between Ravensthorpe and Esperance and close to the Munglinup River. The river for most of its course defines the boundary of the Esperance and Ravensthorpe shires. At the Oldfield Estuary, the boundary goes to the eastern shore. The word Munglinup is Noongar in origin and means ''where young people met their in-laws.'' The name first appears on maps made by the Dempster brothers, early settlers of the area in 1868. The region was first opened up for farming in the late 1950s. By the early 1960s, the community asked for a townsite between Esperance and Ravensthorpe to be considered. The townsite was surveyed in 1961 and gazetted in 1962. The surrounding areas produce wheat and other cereal A cereal is any Poaceae, grass cultivated for the edible components of its grain (botanically, a type of frui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchids Of Western Australia
Among the many wildflowers in Western Australia, there are around four hundred species of orchids. Early identifications One of the first botanists to study Western Australia was Archibald Menzies, aboard HMS ''Discovery'', who explored King George Sound in 1791. Many of the samples (including orchids) were lost in the return to England, but those that did survive were documented in ''Prodromus Florae Novae Hollandiae et Insulae Van Diemen'', published by Robert Brown in 1810. The first three orchids from Western Australia to be named were ''Caladenia menziesii'' (now '' Leptoceras menziesii''), '' Caladenia flava'', and ''Diuris longifolia''. In 1802 Robert Brown himself collected 500 specimens of flora from Western Australia, including: * ''Diuris emarginata'' var. ''emarginata'' * ''Diuris emarginata'' var. ''pauciflora'' *''Diuris setacea'' *'' Epiblema grandiflorum'' *'' Microtis alba'' *'' Microtis media'' *''Microtis pulchella'' *'' Prasophyllum gibbosum'' *'' Prasop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myco-heterotrophic Orchids
Myco-heterotrophy (from Greek μύκης , "fungus", ἕτερος ', "another", "different" and τροφή ', "nutrition") is a symbiotic relationship between certain kinds of plants and fungi, in which the plant gets all or part of its food from parasitism upon fungi rather than from photosynthesis. A myco-heterotroph is the parasitic plant partner in this relationship. Myco-heterotrophy is considered a kind of cheating relationship and myco-heterotrophs are sometimes informally referred to as "mycorrhizal cheaters". This relationship is sometimes referred to as mycotrophy, though this term is also used for plants that engage in mutualistic mycorrhizal relationships. Relationship between myco-heterotrophs and host fungi Full (or obligate) myco-heterotrophy exists when a non-photosynthetic plant (a plant largely lacking in chlorophyll or otherwise lacking a functional photosystem) gets all of its food from the fungi that it parasitizes. Partial (or facultative) myco-hetero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizanthella
''Rhizanthella'', commonly known as underground orchids, is a genus of flowering plants in the orchid family, Orchidaceae and is endemic to Australia. All are leafless, living underground in symbiosis with mycorrhizal fungi. The inflorescence is a head of flowers held at, or just above the ground but mostly covered by soil or leaf litter and little is known about the mechanism of pollination. Description Orchids in the genus ''Rhizanthella'' are mostly underground, perennial, sympodial, mycotrophic herbs with fleshy underground stems which produce new shoots at nodes where there are colourless leaf-like cataphylls. There are no roots and new tubers form at the end of short stems. The leaves are reduced to scale-like structures lacking chlorophyll, pressed against and sheathing the stems. The inflorescence is a head containing many flowers and is held at, or just above ground level but the head is usually covered with leaf litter or soil. The head is surrounded by a large number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environment Protection And Biodiversity Conservation Act 1999
The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and culturally significant places. Enacted on 17 July 2000, it established a range of processes to help protect and promote the recovery of threatened species and ecological communities, and preserve significant places from decline. The Act is administered by the Department of Agriculture, Water and the Environment. Lists of threatened species are drawn up under the Act, and these lists, the primary reference to threatened species in Australia, are available online through the Species Profile and Threats Database (SPRAT). As an Act of the Australian Parliament, it relies for its constitutional validity upon the legislative powers of the Parliament granted by the Australian Constitution, and key provisions of the Act are largely based on a num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Department Of Environment And Conservation (Western Australia)
The Department of Environment and Conservation (DEC) was a department of the Government of Western Australia that was responsible for implementing the state's conservation and environment legislation and regulations. It was formed on 1 July 2006 by the amalgamation of the Department of Environment and the Department of Conservation and Land Management. The DEC was separated on 30 June 2013 forming the Department of Parks and Wildlife (DPaW) and the Department of Environment Regulation (DER), which both commenced operations on 1 July 2013. On 1 July 2017 the DER amalgamated with the Department of Water and the Office of the Environmental Protection Authority, to become the Department of Water and Environmental Regulation, while DPaW was merged with other agencies to form the Department of Parks and Wildlife. Status (at dissolution, 30 June 2013) The department was managing more than 285,000 km2, including more than nine per cent of WA's land area: its national parks, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Declared Rare And Priority Flora List
The Declared Rare and Priority Flora List is the system by which Western Australia's conservation flora are given a priority. Developed by the Government of Western Australia's Department of Environment and Conservation, it was used extensively within the department, including the Western Australian Herbarium. The herbarium's journal, '' Nuytsia'', which has published over a quarter of the state's conservation taxa, requires a conservation status to be included in all publications of new Western Australian taxa that appear to be rare or endangered. The system defines six levels of priority taxa: ;X: Threatened (Declared Rare Flora) – Presumed Extinct Taxa: These are taxa that are thought to be extinct, either because they have not been collected for over 50 years despite thorough searching, or because all known wild populations have been destroyed. They have been declared as such in accordance with the Wildlife Conservation Act 1950, and are therefore afforded legislative prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratobasidium
''Ceratobasidium'' is a genus of fungi in the order Cantharellales. Basidiocarps (fruit bodies) are effused and the genus is sometimes grouped among the corticioid fungi, though species also retain features of the heterobasidiomycetes. Anamorphic forms were formerly referred to the genus ''Ceratorhiza'', but this is now considered a synonym of ''Rhizoctonia''. ''Ceratobasidium'' species, excluding the type, are also now considered synonymous with ''Rhizoctonia'' and some species have been transferred to the latter genus. Species are saprotrophic, but several are also facultative plant pathogens, causing a number of commercially important crop diseases. Some are also endomycorrhizal associates of orchids. Taxonomy The name ''Ceratobasidium'' was introduced in 1935 by American mycologist D.P. Rogers to accommodate species of the old form genus '' Corticium'' that showed affinities with the heterobasidiomycetes. These affinities were the possession of large sterigmata ("cerato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycorrhiza
A mycorrhiza (from Greek μύκης ', "fungus", and ῥίζα ', "root"; pl. mycorrhizae, mycorrhiza or mycorrhizas) is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its root system. Mycorrhizae play important roles in plant nutrition, soil biology, and soil chemistry. In a mycorrhizal association, the fungus colonizes the host plant's root tissues, either intracellularly as in arbuscular mycorrhizal fungi (AMF or AM), or extracellularly as in ectomycorrhizal fungi. The association is sometimes mutualistic. In particular species or in particular circumstances, mycorrhizae may have a parasitic association with host plants. Definition A mycorrhiza is a symbiotic association between a green plant and a fungus. The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus, and the fungus supplies to the plant water and mineral nutrients, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myco-heterotroph
Myco-heterotrophy (from Greek μύκης , "fungus", ἕτερος ', "another", "different" and τροφή ', "nutrition") is a symbiotic relationship between certain kinds of plants and fungi, in which the plant gets all or part of its food from parasitism upon fungi rather than from photosynthesis. A myco-heterotroph is the parasitic plant partner in this relationship. Myco-heterotrophy is considered a kind of cheating relationship and myco-heterotrophs are sometimes informally referred to as "mycorrhizal cheaters". This relationship is sometimes referred to as mycotrophy, though this term is also used for plants that engage in mutualistic mycorrhizal relationships. Relationship between myco-heterotrophs and host fungi Full (or obligate) myco-heterotrophy exists when a non-photosynthetic plant (a plant largely lacking in chlorophyll or otherwise lacking a functional photosystem) gets all of its food from the fungi that it parasitizes. Partial (or facultative) myco-heterotr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melaleuca Hamata
''Melaleuca hamata'' is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It grows to a large, dense shrub with broombrush foliage and profuse pale yellow flowers in late spring. Description ''Melaleuca hamata'' is a large shrub, sometimes a small tree growing to a height of , with flaking papery bark. Its leaves are arranged alternately, upward-pointing and needle-like, up to long and in diameter and with a sharp tip which is often hooked. The flowers are a shade of yellow, through cream to white. They are in almost spherical heads in many of the upper leaf axils, each head about in diameter and containing 5 to 15 groups of flowers in threes. The petals are long and often fall off as soon as the flower opens. The stamens, which give the flowers their colour, are arranged in five bundles around the flower with 3 to 8 stamens per bundle. Flowering occurs through spring and early summer and is followed by fruit which are woody cap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
