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Polyscias Maraisiana
''Polyscias maraisiana'' is a species of plant in the family Araliaceae, formerly named ''Gastonia mauritiana''. It is endemic to Mauritius, where it was formerly common on forest verges and also in coastal areas. It was formerly grown as an ornamental in Europe, partly on account of its strikingly heteroblastic leaves, however it is rarely found in international cultivation now. It is however beginning to be cultivated in its native country, as an ornamental landscaping plant - for gardens and public areas. It is named for the botanist Wessel Marais. It is one of several ''Polyscias'' species which are endemic to Mauritius Mauritius ( ; french: Maurice, link=no ; mfe, label= Mauritian Creole, Moris ), officially the Republic of Mauritius, is an island nation in the Indian Ocean about off the southeast coast of the African continent, east of Madagascar. It ..., including '' Polyscias dichroostachya'' (distinctive flower-spike and large, square leaf-segments), '' Pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araliaceae
The Araliaceae are a family of flowering plants composed of about 43 genera and around 1500 species consisting of primarily woody plants and some herbaceous plants. The morphology of Araliaceae varies widely, but it is predominantly distinguishable based on its woody habit, tropical distribution, and the presence of simple umbels. There are numerous plants of economic importance. Some genera, such as ''Hedera'' (the ivies), ''Fatsia'' (Japanese aralias) and '' Schefflera'' (the umbrella trees)'', ''are used as ornamental foliage plants. The family also includes ''Panax ginseng'', the root of which is ginseng, used in traditional Chinese medicine. Overview The morphology of Araliaceae varies widely. Many studies have found that there is no unifying characteristic capable of classifying the family. In general, Araliaceae species have large, usually alternate leaves, often with aromatic ethereal oils, five-petaled flowers, two to five carpels, simple umbels, and berries withou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mauritius
Mauritius ( ; french: Maurice, link=no ; mfe, label= Mauritian Creole, Moris ), officially the Republic of Mauritius, is an island nation in the Indian Ocean about off the southeast coast of the African continent, east of Madagascar. It includes the main island (also called Mauritius), as well as Rodrigues, Agaléga and St. Brandon. The islands of Mauritius and Rodrigues, along with nearby Réunion (a French overseas department), are part of the Mascarene Islands. The main island of Mauritius, where most of the population is concentrated, hosts the capital and largest city, Port Louis. The country spans and has an exclusive economic zone covering . Arab sailors were the first to discover the uninhabited island, around 975, and they called it ''Dina Arobi''. The earliest discovery was in 1507 by Portuguese sailors, who otherwise took little interest in the islands. The Dutch took possession in 1598, establishing a succession of short-lived settlements over a peri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heteroblasty (botany)
Heteroblasty is the significant and abrupt change in form and function, that occurs over the lifespan of certain plants. Characteristics affected include internode length and stem structure as well as leaf form, size and arrangement. It should not be confused with seasonal heterophylly, where early and late growth in a season are visibly different. This change is different from a homoblastic change which is a gradual change or little change at all, so that there is little difference between the juvenile and adult stages. Some characteristics affected by heteroblastic change include the distance between successive leaves (internode length) and stem structure as well as leaf form, size and arrangement. Heteroblasty is found in many plant families as well as only some species within a genus. This random spread of heteroblastic plants across species is believed to be caused by convergent evolution. The earlier and later stages of development are commonly labeled as juvenile and adult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wessel Marais
Wessel Marais B.Sc., M.Sc. (1929-2013) was a South African botanist and plant collector. Wessel was born in Colesberg, Northern Cape Province, on 28 December 1929, the youngest of the ten children of Barend Pieter Marais, the last blacksmith and wagon builder of Colesberg, who was of French Huguenot descent. He studied at Pretoria University (1947-1951) where he obtained an M.Sc. in Botany for the thesis 'A Morphological study of an indigenous species of rice, ''Oryza barthii'' A. Chev.'. He then (1952) joined the National Herbarium (PRE) where he undertook fieldwork during an internship in Kruger National Park and in Namibia. From 1953 to 1955 he was director of the Albany Museum Herbarium (GRA) in Grahamstown, where he studied South African Cruciferae for the Flora of Southern Africa. He carried out collecting trips to the Southwestern Cape Province, Natal, Lesotho, the Transkei, Pondoland, Griqualand East and other localities. He collected over 1,500 specimens jointly with Va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyscias
''Polyscias'' is a genus of flowering plants in the Family (biology), family Araliaceae. They bear pinnately compound leaves. In 2003, a checklist and nomenclator (nomenclature), nomenclator was published for Araliaceae.David G. Frodin and Rafaël Govaerts. 2003. ''World Checklist and Bibliography of Araliaceae''. Royal Botanic Gardens, Kew. . (See ''External links'' below). In this Treatise, work, 116 species were listed for ''Polyscias''. , Plants of the World Online recognises 180 species in the genus and 22 synonyms for it. Species A * ''Polyscias aculeata'' * ''Polyscias acuminata'' * ''Polyscias aemiliguineae'' * ''Polyscias aequatoguineensis'' * ''Polyscias aherniana'' * ''Polyscias albersiana'' * ''Polyscias alternifolia'' * ''Polyscias amplifolia'' * ''Polyscias anacardium'' * ''Polyscias andraerum'' * ''Polyscias angustifolia'' * ''Polyscias ariadnes'' * ''Polyscias ashtonii'' * ''Polyscias aubrevillei'' * ''Polyscias australiana'' B * ''Polyscias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyscias Dichroostachya
''Polyscias dichroostachya'' is a species of plant in the family Araliaceae. It is endemic to Mauritius, where it used to be common in the forests of the south-west of the island. It can be distinguished from the other ''Polyscias ''Polyscias'' is a genus of flowering plants in the Family (biology), family Araliaceae. They bear pinnately compound leaves. In 2003, a checklist and nomenclator (nomenclature), nomenclator was published for Araliaceae.David G. Frodin and Rafa� ...'' by its distinctive flower-spike and its more large, square leaf-segments of its compound leaves. References Endemic flora of Mauritius dichroostachya Endangered plants Taxonomy articles created by Polbot {{Araliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyscias Neraudiana
''Polyscias neraudiana'' is a species of plant in the family Araliaceae. It is endemic to Mauritius. It is threatened by habitat loss. It can be distinguished from the other ''Polyscias ''Polyscias'' is a genus of flowering plants in the Family (biology), family Araliaceae. They bear pinnately compound leaves. In 2003, a checklist and nomenclator (nomenclature), nomenclator was published for Araliaceae.David G. Frodin and Rafa� ...'' by the red flowers of its flower-spike and the smaller, longer leaf-segments of its compound leaves. References neraudiana Endemic flora of Mauritius Critically endangered plants Taxonomy articles created by Polbot {{Araliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyscias Gracilis
''Polyscias gracilis'' is a species of plant in the family Araliaceae. It is endemic to Mauritius Mauritius ( ; french: Maurice, link=no ; mfe, label= Mauritian Creole, Moris ), officially the Republic of Mauritius, is an island nation in the Indian Ocean about off the southeast coast of the African continent, east of Madagascar. It .... References gracilis Endemic flora of Mauritius Critically endangered plants Taxonomy articles created by Polbot {{Araliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyscias Paniculata
''Polyscias paniculata'' is a species of flowering plant in the family Araliaceae. It is endemic to Mauritius. It 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 .... References paniculata Endemic flora of Mauritius Critically endangered plants Taxonomy articles created by Polbot Taxa named by John Gilbert Baker Taxa named by Alphonse Pyramus de Candolle {{Araliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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