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Uredo Rangelii
''Austropuccinia'' is a monotypic genus of rust (a type of plant pathogen) native to South America with the only species ''Austropuccinia psidii'', commonly known as myrtle rust, guava rust, or ʻōhiʻa rust. It affects plants in the family Myrtaceae. It is a member of the fungal complex called the guava rust (''Puccinia psidii'') group. The spores have a distinctive yellow to orange colour, occasionally encircled by a purple ring. They are found on lesions on new growth including shoots, leaves, buds and fruits. Leaves become twisted and may die. Infections in highly susceptible species may result in the death of the host plant. As of late 2013, it is infecting around 179 species in New South Wales and Queensland, from 41 genera (around 46% of genera in the Myrtaceae) in Australia. Importance ''Austropuccinia psidii'', a myrtle rust or a rust fungus, has a large host range for infection, making disease control and prevention difficult. However, it has been seen to have biol ...
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Puccinia Psidii
''Austropuccinia'' is a Monotypic taxon, monotypic genus of rust (fungus), rust (a type of plant pathogen) native to South America with the only species ''Austropuccinia psidii'', commonly known as myrtle rust, guava rust, or ʻōhiʻa rust. It affects plants in the family Myrtaceae. It is a member of the fungal complex called the Puccinia psidii, guava rust (''Puccinia psidii'') group. The spores have a distinctive yellow to orange colour, occasionally encircled by a purple ring. They are found on lesions on new growth including shoots, leaves, buds and fruits. Leaves become twisted and may die. Infections in highly susceptible species may result in the death of the host plant. As of late 2013, it is infecting around 179 species in New South Wales and Queensland, from 41 genera (around 46% of genera in the Myrtaceae) in Australia. Importance ''Austropuccinia psidii'', a myrtle rust or a rust fungus, has a large host range for infection, making disease control and prevention d ...
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Eugenia Reinwardtiana
''Eugenia reinwardtiana'' is a shrub to small tree in the family Myrtaceae. Native to tropical forests in Indonesia, the Australian state of Queensland, and many Pacific Islands, its common names include Cedar Bay cherry, beach cherry, Australian beach cherry, mountain stopper, nīoi (Hawaiian), and a'abang ( Chamorro). They are typically in height.Wrigley, J.W., Fagg, M., ''Australian Native Plants'', Collins, 1986, The tree is particularly common around the Cedar Bay National Park in northern Australia and the edible fruit was especially popular with the hippies who lived there in the 1970s. The fruits are green at first, then ripen to a bright orange-red colour with a sweet taste and soft flesh. Uses The tree is cultivated to a limited extent for its edible sweetish fruit that is often eaten out-of-hand, used to flavour drinks and candies, or as a preserve. The fruit is a source of antioxidants. The tree is well-suited to amenity horticulture in the tropics, and is grown ...
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Urediniospore
Urediniospores (or uredospores) are thin-walled spores produced by the uredium, a stage in the life-cycle of Rust (fungus), rusts. Development ''Urediniospores'' develop in the uredium, generally on a leaf's under surface. Morphology *Urediniospores usually have two Dikaryon, dikaryote nuclei within one cell. In mass they are usually pale brown in contrast to teliospores which are generally dark brown. See also *Chlamydospore *Urediniomycetes *Pycniospore *Aeciospore *Teliospore *Ustilaginomycetes *Rust_fungus#Spores, Rust fungus: Spores References

*C.J. Alexopolous, Charles W. Mims, M. Blackwell, ''Introductory Mycology, 4th ed.'' (John Wiley and Sons, Hoboken NJ, 2004) Germ cells Fungal morphology and anatomy Mycology {{Basidiomycota-stub ...
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Gosford, New South Wales
Gosford is a Waterfront (area), waterfront city at the northern end of Brisbane Water on the Central Coast (New South Wales), Central Coast in the state of New South Wales, Australia. The Gosford Waterfront is known for its boating and scenic views on the shores of Brisbane Water. Gosford is the main commercial hub and gateway of the Central Coast. It is situated approximately north of Sydney and south of Newcastle, New South Wales, Newcastle. Gosford is located in the local government area of the Central Coast Council (New South Wales), Central Coast Council. Gosford, locally nicknamed 'Gossie', is located in the north-eastern part of the Sydney Basin in the traditional Darkinjung Country. The regional city is one of the two shared administrative hubs of the Central Coast Council, along with Wyong, New South Wales, Wyong. Gosford is the central business district of the Central Coast region and is the third largest urban area in the state of New South Wales after Sydney and N ...
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Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller islands. It has a total area of , making it the list of countries and dependencies by area, sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and Climate of Australia, climates including deserts of Australia, deserts in the Outback, interior and forests of Australia, tropical rainforests along the Eastern states of Australia, coast. The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the Last Glacial Period, last glacial period. By the time of British settlement, Aboriginal Australians spoke 250 distinct l ...
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Eugenia Koolauensis
''Eugenia koolauensis'', commonly known as Koolau eugenia or ''nioi'', is a species of flowering plant in the myrtle family, Myrtaceae. It is endemic to Hawaii, where it could previously be found on the islands of Molokai and Oahu; today populations only exist on the latter. This is a federally listed endangered species of the United States. It is one of two ''Eugenia'' species native to Hawaii, and the only endemic.USFWS''E. koolauensis'' Five-year Review.January 2008. It is a shrub or tree grows 2 to 7 meters tall. The tips of the branches and the undersides of the leaves are hairy. White flowers occur in the leaf axils Habitat It inhabits dry gulches and ridges in coastal mesic and mixed mesic forests on the Koolau and Waianae Ranges. Associated plant species include maile ('' Alyxia oliviformis''), ahakea lau nui (''Bobea elatior''), '' Carex meyenii'', uluhe (''Dicranopteris linearis''), kōlea lau nui (''Myrsine lessertiana''), olopua (''Nestegis sandwicensis''), hala ...
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Ecosystems
An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and energy flows. Ecosystems are controlled by external and internal Environmental factor, factors. External factors—including climate—control the ecosystem's structure, but are not influenced by it. By contrast, internal factors control and are controlled by ecosystem processes; these include decomposition, the types of species present, root competition, shading, disturbance, and succession. While external factors generally determine which Resource (biology), resource inputs an ecosystem has, their availability within the ecosystem is controlled by internal factors. Ecosystems are wikt:dynamic, dynamic, subject to periodic disturbances and always in the process of recovering from past disturbances. The tendency of an ecosystem to remain clo ...
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Metrosideros Polymorpha
''Metrosideros polymorpha'', the ''ōhia lehua'',; is a species of flowering evergreen tree in the Myrtus, myrtle family, Myrtaceae, that is Endemism, endemic to the six largest Hawaiian Islands, islands of Hawaii, Hawaii. It is a member of the diverse ''Metrosideros'' genus, which are widespread over the southwest Pacific. It is the state tree of Hawai'i. It is a highly variable tree, being tall in favorable situations, and a much smaller prostrate shrub when growing in Hawaiian tropical rainforests#Bogs, boggy soils or directly on basalt. It produces a brilliant display of flowers, made up of a mass of stamens, which can range from fiery red to yellow. Many native Hawaiian traditions refer to the tree and the forests it forms as sacred to Pele (deity), Pele, the volcano goddess, and to Laka, the goddess of hula. Ōhia trees grow easily on lava, and are usually the first plants to grow on new lava flows. ''Metrosideros polymorpha'' is commonly called a ''lehua'' tree, or an ' ...
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California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an international border with the Mexico, Mexican state of Baja California to the south. With almost 40million residents across an area of , it is the List of states and territories of the United States by population, largest state by population and List of U.S. states and territories by area, third-largest by area. Prior to European colonization of the Americas, European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. European exploration in the 16th and 17th centuries led to the colonization by the Spanish Empire. The area became a part of Mexico in 1821, following Mexican War of Independence, its successful war for independence, but Mexican Cession, was ceded to the U ...
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Florida
Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic Ocean to the east, the Straits of Florida to the south, and The Bahamas to the southeast. About two-thirds of Florida occupies a peninsula between the Gulf of Mexico and the Atlantic Ocean. It has the List of U.S. states by coastline, longest coastline in the contiguous United States, spanning approximately , not including its many barrier islands. It is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. With a population of over 23 million, it is the List of U.S. states and territories by population, third-most populous state in the United States and ranks List of states and territories of the United States by population density, seventh in population density as of 2020. Florida spans , ranking List of U.S. states ...
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Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only state not on the North American mainland, the only state that is an archipelago, and the only state in the tropics. Hawaii consists of 137 volcanic islands that comprise almost the entire Hawaiian Islands, Hawaiian archipelago (the exception, which is outside the state, is Midway Atoll). Spanning , the state is Physical geography, physiographically and Ethnology, ethnologically part of the Polynesian subregion of Oceania. Hawaii's ocean coastline is consequently the List of U.S. states and territories by coastline, fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Niihau, Kauai, Kauai, Oahu, Oahu, Molokai, Molokai, Lanai, Lānai, Kahoʻolawe, Kahoolawe, Maui, and Hawaii (island), Hawaii, a ...
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Melaleuca
''Melaleuca'' () is a genus of nearly 300 species of plants in the myrtle family, Myrtaceae, commonly known as paperbarks, honey-myrtles, bottlebrushes or tea-trees (although the last name is also applied to species of '' Leptospermum''). They range in size from small shrubs that rarely grow to more than high, to trees up to . Their flowers generally occur in groups, forming a "head" or "spike" resembling a brush used for cleaning bottles, containing up to 80 individual flowers. Melaleucas are an important food source for nectarivorous insects, birds, and mammals. Many are popular garden plants, either for their attractive flowers or as dense screens and a few have economic value for producing fencing and oils such as "tea tree" oil. Most melaleucas are endemic to Australia, with a few also occurring in Malesia. Seven are endemic to New Caledonia, and one is found only on Australia's Lord Howe Island. Melaleucas are found in a wide variety of habitats. Many are adapted ...
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