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Lysicarpus
''Lysicarpus'' is a genus of trees in the family Myrtaceae described as a genus in 1858. It contains a single known species, ''Lysicarpus angustifolius'', endemic to the State of Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ... in Australia. It is known there as the brown hazelwood or budgeroo. References {{Taxonbar, from=Q961930 Myrtaceae Monotypic Myrtaceae genera Myrtales of Australia Endemic flora of Queensland ...
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Myrtaceae
Myrtaceae (), the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group. All species are woody, contain essential oils, and have flower parts in multiples of four or five. The leaves are evergreen, alternate to mostly opposite, simple, and usually entire (i.e., without a toothed margin). The flowers have a base number of five petals, though in several genera, the petals are minute or absent. The stamens are usually very conspicuous, brightly coloured, and numerous. Evolutionary history Scientists hypothesize that the family Myrtaceae arose between 60 and 56 million years ago (Mya) during the Paleocene era. Pollen fossils have been sourced to the ancient supercontinent Gondwana. The breakup of Gondwana during the Cretaceous period (145 to 66 Mya) geographically isolated disjunct taxa and allowed for rapid ...
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Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south, respectively. To the east, Queensland is bordered by the Coral Sea and the Pacific Ocean; to the state's north is the Torres Strait, separating the Australian mainland from Papua New Guinea, and the Gulf of Carpentaria to the north-west. With an area of , Queensland is the world's List of country subdivisions by area, sixth-largest subnational entity; it List of countries and dependencies by area, is larger than all but 16 countries. Due to its size, Queensland's geographical features and climates are diverse, and include tropical rainforests, rivers, coral reefs, mountain ranges and white sandy beaches in its Tropical climate, tropical and Humid subtropical climate, sub-tropical c ...
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Monotypic Myrtaceae Genera
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. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ...
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Myrtales Of Australia
The Myrtales are an order of flowering plants in the malvid clade of the rosid group of dicotyledons. Well-known members of Myrtales include: myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, eucalyptus, crape myrtles, henna tree, pomegranate, water caltrop, loosestrifes, cupheas (cigar plants), evening primroses, fuchsias, willowherbs, white mangrove, leadwood tree, African birch, Koster's curse, and velvet tree. Taxonomy Myrtales include the following nine families, according to the APG III system of classification: * Alzateaceae * Combretaceae ( leadwood family) * Crypteroniaceae * Lythraceae ( loosestrife and pomegranate family) * Melastomataceae (including Memecylaceae) * Myrtaceae (myrtle family; including Heteropyxidaceae, Psiloxylaceae) * Onagraceae ( evening primrose and Fuchsia family) * Penaeaceae (including Oliniaceae, Rhynchocalycaceae) * Vochysiaceae The APG III system places the order within the eurosids; ...
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