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Gomortegaceae
''Gomortega keule'' (syn. ''G. nitida''; Spanish language, Spanish names ''keule'', ''queule'', and ''hualhual'') is a tree native to Chile. It is the sole species of the genus ''Gomortega'' and, according to the APG IV system of 2016 (unchanged from the APG systems of APG III system, 2009, APG II system, 2003 and APG system, 1998), of the monotypic family Gomortegaceae, assigned to the order Laurales in the clade magnoliids. Description Evergreen trees, aromatic, gray bark with shallow longitudinal fissures. The leaves are petiolate, simple, entire, obovate to lanceolate, coriaceous. The stems have unilacunar nodes and with two foliar traces. The branches are quadrangular. The edible fruit is a uni or locule, trilocular yellow drupe, usually with 1 (-2) seeds, fleshy mesocarp, pleasant, stony endocarp. There are 1-2 seeds per fruit, with abundant, oily endosperm, large embryo, dicotyledonous. The chromosome number is n = 21, 2n = 42. Distribution ''Gomortega keule'' grows o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurales
The Laurales are an order of flowering plants. They are magnoliids, related to the Magnoliales. The order includes about 2500-2800 species from 85-90 genera, which comprise seven families of trees and shrubs. Most of the species are tropical and subtropical, though a few genera reach the temperate zone. The best known species in this order are those of the Lauraceae (for example bay laurel, cinnamon, avocado, and ''Sassafras''), and the ornamental shrub ''Calycanthus'' of the Calycanthaceae. The earliest lauraceous fossils are from the early Cretaceous. It is possible that the ancient origin of this order is one of the reasons for its highly diverged morphology. Presently no single morphological property is known, which would unify all the members of Laurales. The presently accepted classification is based on molecular and genetic analysis. Classification The first botanist to think of the Laurales as a natural group was H. Hallier in 1905. He viewed them as being derived from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gomortega Keule Fruits 001
''Gomortega keule'' (syn. ''G. nitida''; Spanish names ''keule'', ''queule'', and ''hualhual'') is a tree native to Chile. It is the sole species of the genus ''Gomortega'' and, according to the APG IV system of 2016 (unchanged from the APG systems of 2009, 2003 and 1998), of the monotypic family Gomortegaceae, assigned to the order Laurales in the clade magnoliids. Description Evergreen trees, aromatic, gray bark with shallow longitudinal fissures. The leaves are petiolate, simple, entire, obovate to lanceolate, coriaceous. The stems have unilacunar nodes and with two foliar traces. The branches are quadrangular. The edible fruit is a uni or trilocular yellow drupe, usually with 1 (-2) seeds, fleshy mesocarp, pleasant, stony endocarp. There are 1-2 seeds per fruit, with abundant, oily endosperm, large embryo, dicotyledonous. The chromosome number is n = 21, 2n = 42. Distribution ''Gomortega keule'' grows only in a very narrow habitat range in coastal Central Chile, includi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
APG III System
The APG III system of flowering plant classification is the third version of a modern, mostly molecular-based, system of plant taxonomy being developed by the Angiosperm Phylogeny Group (APG). Published in 2009, it was superseded in 2016 by a further revision, the APG IV system. Along with the publication outlining the new system, there were two accompanying publications in the same issue of the Botanical Journal of the Linnean Society: * The first, by Chase & Reveal, was a formal phylogenetic classification of all land plants (embryophytes), compatible with the APG III classification. As the APG have chosen to eschew ranks above order, this paper was meant to fit the system into the existing Linnaean hierarchy for those that prefer such a classification. The result was that all land plants were placed in the class Equisetopsida, which was then divided into 16 subclasses and a multitude of superorders. * The second, by Haston ''et al.'', was a linear sequence of families followi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
APG System
The APG system (Angiosperm Phylogeny Group system) of plant classification is the first version of a modern, mostly molecular-based, system of plant taxonomy. Published in 1998 by the Angiosperm Phylogeny Group, it was replaced by the improved APG II in 2003, APG III system in 2009 and APG IV system in 2016. History The original APG system is unusual in being based, not on total evidence, but on the cladistic analysis of the DNA sequences of three genes, two chloroplast genes and one gene coding for ribosomes. Although based on molecular evidence only, its constituent groups prove to be supported by other evidence as well, for example pollen morphology supports the split between the eudicots and the rest of the former dicotyledons. The system is rather controversial in its decisions at the family level, splitting a number of long-established families and submerging some other families. It also is unusual in not using botanical names above the level of order, that is, an orde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Plants
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 3654 endangered plant species. 17% of all evaluated plant species are listed as endangered. The IUCN also lists 99 subspecies and 101 varieties as endangered. No subpopulations of plants have been evaluated by the IUCN. For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of exintction". An even higher risk is faced by ''critically endangered'' species, which meet the quantitative criteria for endangered species. Critically endangered plants are listed separately. There are 6147 plant species which are endangered or critically endangered. Additionally 1674 plant species (7.6% of those evaluated) are listed as '' data deficient'', meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
APG IV System
The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was published in 2016, seven years after its predecessor the APG III system was published in 2009, and 18 years after the first APG system was published in 1998. In 2009, a linear arrangement of the system was published separately; the APG IV paper includes such an arrangement, cross-referenced to the 2009 one. Compared to the APG III system, the APG IV system recognizes five new orders (Boraginales, Dilleniales, Icacinales, Metteniusales and Vahliales), along with some new families, making a total of 64 angiosperm orders and 416 families. In general, the authors describe their philosophy as "conservative", based on making changes from APG III only where "a well-supported need" has been demonstrated. This has sometimes resulted in placements that a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus Glauca
''Nothofagus glauca'', commonly known as hualo or roble Maulino, is a species of plant in the family Nothofagaceae. It is a deciduous tree endemic to Chile. It grows from 34° to 37° South latitude. ''N. glauca'' was proposed to be renamed ''Lophozonia glauca'' in 2013. It is a typical tree of the mediterranean Maulino forest of Central Chile, its current range spanning over 330 km from north to south. The species grow on a variety of soils and is mostly found on gentle to steep slopes. Description ''Nothofagus glauca'' grows up to 30 m (100 ft) height and 2 m (6.5 ft) diameter, with a straight and cylindrical trunk. The bark is gray-reddish and rough. It lives in places with long droughts. Is very useful for reforestating areas with very bent slopes and with long dry season in summer. It is threatened by habitat loss. Leaves alternate, petioles 2–7 mm long, aovate, base subcordate, both faces with glands giving to them harsh texture, glaucous above ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus Leonii
''Nothofagus'', also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America (Chile, Argentina) and Australasia (east and southeast Australia, New Zealand, New Guinea, and New Caledonia). The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules, and pollen, with fossils extending into the late Cretaceous period and occurring in Australia, New Zealand, Antarctica, and South America. Description The leaves are toothed or entire, evergreen or deciduous. The fruit is a small, flattened or triangular nut, borne in cupules containing one to seven nuts. Reproduction Many individual trees are extremely old, and at one time, some populations were thought to be unable to reproduce in present-day conditions where they were growing, except by suckering (clonal repr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus Alessandri
''Nothofagus alessandrii'', the ruil, is a species of plant in the family Nothofagaceae, commonly known as the southern beeches. It is endemic to Chile, occurring chiefly in the Chilean matorral ecoregion. It is threatened by habitat loss. The species is protected within Los Ruiles National Reserve. Description This is a deciduous tree with a straight, gray trunk that can measure up to 30 metres tall. Its leaves are ovate, ovate-cordate or lanceolate in shape, with conspicuous primary veins and serrated edges. The greenish flowers are unisexual and inconspicuous. Distribution The ruil grows between 37º 05' and 37º 50' south latitude, in the provinces of Talca and Cauquenes, in an area of about 100 square kilometres, but in a total area in 1991 totaled over 3.5 km2. According to 1988 studies, the species is scattered in about 185 land-holdings, each of which have one or two hectares and are surrounded by commercial plantations of ''Pinus radiata'' (an introduced species), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biobío Region
The Biobío Region ( es, Región del Biobío ), is one of Chile's sixteen regions of Chile, regions (first-order administrative divisions). With a population of 1.5 million, thus being the third most populated region in Chile, it is divided into three provinces: Arauco Province, Arauco, Biobío Province, Biobío and Concepción Province, Chile, Concepción. The latter contains its capital and largest city, Concepción, Chile, Concepción, a major city and Greater Concepción, metro area in the country. Los Ángeles, Chile, Los Ángeles, capital of the Biobío Province, is another important city in the region. Geography The Region of the Biobío is bordered on the west by the Pacific Ocean, on the east by Argentina, on the north by the Chilean Ñuble Region, Region of Ñuble, and on the south by the Chilean La Araucanía Region, Region of Araucanía. The Region has been hit by many List of earthquakes in Chile, Chilean earthquakes, including the 1960 Valdivia earthquake, most p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overharvesting
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Continued overexploitation can lead to the destruction of the resource, as it will be unable to replenish. The term applies to natural resources such as Aquifer, water aquifers, Pasture, grazing pastures and forests, wild medicinal plants, fish stocks and other wildlife. In ecology, overexploitation describes one of the five main activities threatening global biodiversity. Ecologists use the term to describe populations that are harvested at an unsustainable rate, given their natural rates of mortality and capacities for reproduction. This can result in extinction at the population level and even extinction of whole species. In conservation biology, the term is usually used in the context of human economic activity that involves the taking of biological resources, or organisms, in larger numbers than their populations can withstand. The term is also used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Editorial Universitaria
Editorial Universitaria is Chilean university press based in Santiago. It was established in 1947 with funds from private people and from the University of Chile. During its existence, it has published the works of generations influential Chilean scientists and intellectuals. The press publishes, among other things, children's literature Children's literature or juvenile literature includes stories, books, magazines, and poems that are created for children. Modern children's literature is classified in two different ways: genre or the intended age of the reader. Children's .... References 1947 establishments in Chile University of Chile Book publishing companies of Chile Book publishing companies based in Santiago University presses of Chile Publishing companies established in 1947 {{Chile-university-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
