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Maytenus Dhofarensis
''Maytenus dhofarensis'' is a species of plant in the family Celastraceae and is found in Oman and Yemen. It is an intricately branched spiny shrub or small tree with its leaves arranged alternately or clustered on short shoots. The flowers have white or cream petals and the fruit are purple or red. It is threatened by habitat loss. Description ''Maytenus dhofarensis'' is a spiny shrub or small tree often forming more or less impenetrable thickets and growing throughout the escarpment woodlands and extending into the drier summit plateaux areas. ''Maytenus dhofarensis'' may be mistaken for '' M. senegalensis'' and the two species are not differentiated in local expertise. Taxonomy and naming ''Maytenus dhofarensis'' was first formally described in 1985 by Sebsebe Demissew and the description was published in ''Symbolae Botanicae Upsalienses''. The specific epithet (''dhofarensis'') refers to Dhofar where this species is found. Distribution and habitat This species is endemic to ... [...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 have lost the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catha Edulis
Khat or qat ( ''ch’at''; Oromo: ''Jimaa'', so, qaad, khaad, khat or chat, ar, القات ''al-qāt'') is a flowering plant native to eastern and southern Africa. Khat contains the alkaloid cathinone, a stimulant, which is said to cause excitement, loss of appetite, and euphoria. Among communities from the areas where the plant is native, khat chewing has a history as a social custom dating back thousands of years analogous to the use of coca leaves in South America and betel nut in Asia. The World Health Organization (WHO) classified it in 1980 as a drug of abuse that can produce psychological dependence, although the WHO does not consider khat addiction to be a serious problem. The legality of khat varies by region. In many countries, khat might not be a specifically controlled substance but may nevertheless be illegal under more general laws. It is a specifically controlled substance in some countries including Canada, Germany, the United Kingdom, and the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near Threatened Flora Of Asia
NEAR or Near may refer to: People * Thomas J. Near, US evolutionary ichthyologist * Near, a developer who created the higan emulator Science, mathematics, technology, biology, and medicine * National Emergency Alarm Repeater (NEAR), a former alarm device to warn civilians of a foreign nuclear attack on the United States * National Emergency Airway Registry (NEAR), a patient registry for intubations in the United States * Nicking enzyme amplification reaction (NEAR), a method of DNA amplification * NEAR Shoemaker, a spacecraft that studied the near-Earth asteroid Eros * Nearness or proximity space *"Near", a city browser by NearGlobal Television, film, music, and books * Near (Death Note), ''Nate River'', a character Other uses * Near v. Minnesota, a U.S. press freedom Supreme Court decision * New England Auto Racers Hall of Fame The New England Auto Racers Hall of Fame is a hall of fame for racing-related people in the New England region of the United States. NEAR was e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Yemen
The wildlife of Yemen is substantial and varied. Yemen is a large country in the southern half of the Arabian Peninsula with several geographic regions, each with a diversity of plants and animals adapted to their own particular habitats. As well as high mountains and deserts, there is a coastal plain and long coastline. The country has links with Europe and Asia, and the continent of Africa is close at hand. The flora and fauna have influences from all these regions and the country also serves as a staging post for migratory birds. Geography Yemen is in the southern half of the Arabian Peninsula, bordering the Red Sea, the Gulf of Aden and the Arabian Sea. The country is divided into four geographical regions: the Tihamah or coastal plains to the west, the western highlands, the central highlands, and the Rub' al Khali, or "Empty Quarter", in the east, the largest sand desert in the world. The Tihamah forms an arid flat plain alongside the Red Sea coast. There are many lagoons h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Oman
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maytenus
''Maytenus'' ''Sunset Western Garden Book,'' 1995:606–607 is a genus of flowering plants in the family Celastraceae. Members of the genus are distributed throughout Central and South America, Southeast Asia, Micronesia and Australasia, the Indian Ocean and Africa. They grow in a very wide variety of climates, from tropical to subpolar. The traditional circumscription of ''Maytenus'' is paraphyletic, so many species have been transferred to ''Denhamia ''Denhamia'' is a genus of plants within the family Celastraceae, with species in Australia and New Caledonia. The species inhabit a variety of environments, from rainforest to semi-arid savanna. All species grow as shrubs or small trees up to 10 ...'', ''Gymnosporia'', ''Monteverdia'', and ''Tricerma''. Selected species * ''Maytenus abbottii'' Abraham Erasmus van Wyk, A.E.van Wyk * ''Maytenus acuminata'' (L.f.) Loes. * ''Maytenus boaria'' Juan Ignacio Molina, Molina (type species) * ''Maytenus buxifolia'' (A.Rich.) Griseb. (West ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemotherapy
Chemotherapy (often abbreviated to chemo and sometimes CTX or CTx) is a type of cancer treatment that uses one or more anti-cancer drugs (chemotherapeutic agents or alkylating agents) as part of a standardized chemotherapy regimen. Chemotherapy may be given with a curative intent (which almost always involves combinations of drugs) or it may aim to prolong life or to reduce symptoms ( palliative chemotherapy). Chemotherapy is one of the major categories of the medical discipline specifically devoted to pharmacotherapy for cancer, which is called ''medical oncology''. The term ''chemotherapy'' has come to connote non-specific usage of intracellular poisons to inhibit mitosis (cell division) or induce DNA damage, which is why inhibition of DNA repair can augment chemotherapy. The connotation of the word chemotherapy excludes more selective agents that block extracellular signals (signal transduction). The development of therapies with specific molecular or genetic targets, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maytenus Buchanii
''Maytenus'' ''Sunset Western Garden Book,'' 1995:606–607 is a genus of flowering plants in the family Celastraceae. Members of the genus are distributed throughout Central and South America, Southeast Asia, Micronesia and Australasia, the Indian Ocean and Africa. They grow in a very wide variety of climates, from tropical to subpolar. The traditional circumscription of ''Maytenus'' is paraphyletic, so many species have been transferred to ''Denhamia'', ''Gymnosporia'', ''Monteverdia'', and ''Tricerma''. Selected species * ''Maytenus abbottii'' A.E.van Wyk * ''Maytenus acuminata'' (L.f.) Loes. * ''Maytenus boaria'' Molina (type species) * ''Maytenus buxifolia'' (A.Rich.) Griseb. (West Indies) * ''Maytenus canariensis'' (Loes.) G. Kunkel & Sunding * ''Maytenus curtissii'' (King) Ding Hou * ''Maytenus hookeri'' Loes. * ''Maytenus jamesonii'' Briq. * ''Maytenus lucidus'' * ''Maytenus magellanica'' ( Lam.) Hook.f. * ''Maytenus obtusifolia'' * '' Maytenus octogona'' * ''Maytenus ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khat
Khat or qat ( ''ch’at''; Oromo: ''Jimaa'', so, qaad, khaad, khat or chat, ar, القات ''al-qāt'') is a flowering plant native to eastern and southern Africa. Khat contains the alkaloid cathinone, a stimulant, which is said to cause excitement, loss of appetite, and euphoria. Among communities from the areas where the plant is native, khat chewing has a history as a social custom dating back thousands of years analogous to the use of coca leaves in South America and betel nut in Asia. The World Health Organization (WHO) classified it in 1980 as a drug of abuse that can produce psychological dependence, although the WHO does not consider khat addiction to be a serious problem. The legality of khat varies by region. In many countries, khat might not be a specifically controlled substance but may nevertheless be illegal under more general laws. It is a specifically controlled substance in some countries including Canada, Germany, the United Kingdom, and the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Throwing Stick
The throwing stick or throwing club is a wooden rod with either a pointed tip or a spearhead attached to one end, intended for use as a weapon. A throwing stick can be either straight or roughly boomerang-shaped, and is much shorter than the javelin. It became obsolete as slings and bows became more prevalent, except on the Australian continent, where the native people continued refining the basic design. Throwing sticks shaped like returning boomerangs are designed to fly straight to a target at long ranges, their surfaces acting as airfoils. When tuned correctly they do not exhibit curved flight, but rather they fly on an extended straight flight path. Straight flight ranges greater than 100 meters have been reported by historical sources as well as in recent research. Distribution The ancient Egyptians used throwing sticks to hunt small game and waterfowl, as seen in several wall paintings. The 18th-dynasty pharaoh Tutankhamun was a known lover of duck hunting and used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
