Satranala
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Satranala
''Satranala decussilvae'' is a species of flowering plant in the Arecaceae family. It is a palm endemic to Madagascar. It is the only species in the genus ''Satranala'', and is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... There are perhaps 200 mature individuals remaining. References Coryphoideae Monotypic Arecaceae genera Endemic flora of Madagascar Endangered plants Taxonomy articles created by Polbot Taxa named by Henk Jaap Beentje Taxa named by John Dransfield {{palm-stub ...
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Coryphoideae
The Coryphoideae is one of five subfamilies in the palm family, Arecaceae. It contains all of the genera with palmate leaves, excepting ''Mauritia'', ''Mauritiella'' and ''Lepidocaryum,'' all of subfamily Calamoideae, tribe Lepidocaryeae, subtribe Mauritiinae. However, all Coryphoid palm leaves have induplicate (V-shaped) leaf folds (excepting ''Guihaia''), while Calamoid palms have reduplicate (inverted V-shaped) leaf folds. Pinnate leaves do occur in Coryphoideae, in ''Phoenix'', '' Arenga'', ''Wallichia'' and bipinnate in ''Caryota''. Classification Subfamily Coryphoideae is divided into 8 tribes: * Sabaleae ** ''Sabal'' * Cryosophileae ** ''Schippia'' ** '' Trithrinax'' ** ''Zombia'' ** ''Coccothrinax'' ** ''Hemithrinax'' ** ''Thrinax'' ** ''Chelyocarpus'' ** ''Cryosophila'' ** ''Itaya'' ** ''Sabinaria'' * Phoeniceae ** ''Phoenix'' * Trachycarpeae ** ''Chamaerops'' ** ''Guihaia'' ** ''Trachycarpus'' ** ''Rhapidophyllum'' ** ''Maxburretia'' ** ''Rhapis'' ** ''Livistona'' ...
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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 ...
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Henk Jaap Beentje
Henk Jaap Beentje (born 1951, Bakkum) is a Dutch botanist. In 1978 he obtained a masters in biology at the University of Amsterdam. He obtained his PhD at the Wageningen Agricultural University on the thesis ''A monograph on Strophanthus DC. (Apocynaceae)'', prepared under the direction of Hendrik de Wit and A.J.M. Leeuwenberg, in 1982. Since 1975, Beentje has been active in Africa. Between 1984 and 1989, he was a research fellow at the East African Herbarium, a herbarium that is part of the National Museums of Kenya in Kenya. Since 1995, Beentje has been a researcher at the herbarium of the Royal Botanic Gardens, Kew. He is particularly engaged in research of mainly African species from the Composite and the Palm families. In the area of the palms, he has often collaborated with John Dransfield. Beentje also serves as an editor of the publication series '' Flora of Tropical East Africa''. He is a Fellow of the Linnean Society of London. Selected publications *''A Field Guide ...
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John Dransfield
John Dransfield (born 1945) is an honorary research fellow and former head of palm research at the Royal Botanic Gardens, Kew, United Kingdom, as well as being an authority on the phylogenetic classification of palms. Dransfield has written or contributed to several books on palms, notably both the first and second editions of ''Genera Palmarum''. The first edition was the standard reference for palm evolution and classification and the second edition, expanding on the original, is expected to achieve that same benchmark. He studied at the University of Cambridge, B.A.(1967), M.A. (1970) and Ph.D. (1970) before working at Kew Gardens. In 2004, Dransfield was awarded the Linnean Medal, an annual award given by the Linnean Society of London. The genus '' Dransfieldia'' was named for him, as was the species '' Adonidia dransfieldii''. He married Dr Soejatmi Dransfield (née Soejatmi Soenarko) in Malaysia (1977). Selected works *''The typification of Linnean palms.'' Intern ...
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Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ...
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Arecaceae
The Arecaceae is a family of perennial flowering plants in the monocot order Arecales. Their growth form can be climbers, shrubs, tree-like and stemless plants, all commonly known as palms. Those having a tree-like form are called palm trees. Currently, 181 genera with around 2,600 species are known, most of which are restricted to tropical and subtropical climates. Most palms are distinguished by their large, compound, evergreen leaves, known as fronds, arranged at the top of an unbranched stem. However, palms exhibit an enormous diversity in physical characteristics and inhabit nearly every type of habitat within their range, from rainforests to deserts. Palms are among the best known and most extensively cultivated plant families. They have been important to humans throughout much of history. Many common products and foods are derived from palms. In contemporary times, palms are also widely used in landscaping. In many historical cultures, because of their importance as ...
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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 ...
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Madagascar
Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa across the Mozambique Channel. At Madagascar is the world's List of island countries, second-largest island country, after Indonesia. The nation is home to around 30 million inhabitants and consists of the island of Geography of Madagascar, Madagascar (the List of islands by area, fourth-largest island in the world), along with numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian subcontinent around 90 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of wildlife of Madagascar, its wildlife is endemic. Human settlement of Madagascar occurred during or befo ...
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Kew Bulletin
The ''Kew Bulletin'' is a quarterly peer-reviewed scientific journal on plant and fungal taxonomy and conservation published by Springer Science+Business Media on behalf of the Royal Botanic Gardens, Kew. Articles on palynology, cytology, anatomy, phytogeography, and phytochemistry that relate to taxonomy are also included. The journal was established in 1887 as the ''Kew Bulletin of Miscellaneous Information'' by William Turner Thiselton-Dyer, then director of the Royal Botanic Gardens, Kew. It sought to facilitate communication between botanists at Kew and distant parts of the British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts esta ..., and prioritised study of information of economic importance. Abstracting and indexing The journal is abstracted and indexed in: Refer ...
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Habitat Loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introdu ...
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Monotypic Arecaceae 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. 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.' ...
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Endemic Flora Of Madagascar
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 ...
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