|
Mayna (plant)
''Mayna'' is a genus of shrubs and trees in the family Achariaceae. It is native to the American tropics. It is dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ..., with male and female flowers produced on separate individuals. Taxonomy The following species are currently recognized: * ''Mayna'' ''grandifolia'' (H. Karst.) Warb. * ''Mayna'' ''hystricina'' (Gleason) Sleumer * ''Mayna'' ''odorata'' Aubl. * ''Mayna'' ''parvifolia'' (J.F. Macbr.) Sleumer * ''Mayna'' ''pubescens'' (Triana & H. Karst.) Warb. * ''Mayna'' ''suaveolens'' (Triana & H. Karst.) Warb. References {{Taxonbar, from=Q9030819 Malpighiales genera Dioecious plants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrub
A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple stems and shorter height, less than tall. Small shrubs, less than 2 m (6.6 ft) tall are sometimes termed as subshrubs. Many botanical groups have species that are shrubs, and others that are trees and herbaceous plants instead. Some definitions state that a shrub is less than and a tree is over 6 m. Others use as the cut-off point for classification. Many species of tree may not reach this mature height because of hostile less than ideal growing conditions, and resemble a shrub-sized plant. However, such species have the potential to grow taller under the ideal growing conditions for that plant. In terms of longevity, most shrubs fit in a class between perennials and trees; some may only last about five y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achariaceae
Achariaceae is a family of flowering plants consisting of 32-33 genera with about 155 species of tropical herbs, shrubs, and trees. The APG IV system has greatly expanded the scope of the family by including many genera previously classified in Flacourtiaceae. Molecular data strongly support the inclusion of this family in the order Malpighiales. The family is almost exclusively tropical and is best known as the source of chaulmoogra oil, formerly used to treat leprosy. Unlike other members of the former Flacourtiaceae now placed in the family Salicaceae, the genera of Achariaceae typically have cyanogenic glycosides In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosi .... Genera References Malpighiales families {{Malpighiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americas
The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. Along with their associated islands, the Americas cover 8% of Earth's total surface area and 28.4% of its land area. The topography is dominated by the American Cordillera, a long chain of mountains that runs the length of the west coast. The flatter eastern side of the Americas is dominated by large river basins, such as the Amazon, St. Lawrence River–Great Lakes basin, Mississippi, and La Plata. Since the Americas extend from north to south, the climate and ecology vary widely, from the arctic tundra of Northern Canada, Greenland, and Alaska, to the tropical rain forests in Central America and South America. Humans first settled the Americas from Asia between 42,000 and 17,000 years ago. A second migration of Na-Dene speakers followed later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Rainforest
Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as ''lowland equatorial evergreen rainforest''. True rainforests are typically found between 10 degrees north and south of the equator (see map); they are a sub-set of the tropical forest biome that occurs roughly within the 28-degree latitudes (in the equatorial zone between the Tropic of Cancer and Tropic of Capricorn). Within the World Wildlife Fund's biome classification, tropical rainforests are a type of tropical moist broadleaf forest (or tropical wet forest) that also includes the more extensive seasonal tropical forests. Overview Tropical rainforests are characterized by two words: hot and wet. Mean monthly temperatures exceed during all months of the year. Average annual rainfall is no less than and can exceed although it typically lies betwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dioecious
Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproduction is biparental reproduction. Dioecy has costs, since only about half the population directly produces offspring. It is one method for excluding self-fertilization and promoting allogamy (outcrossing), and thus tends to reduce the expression of recessive deleterious mutations present in a population. Plants have several other methods of preventing self-fertilization including, for example, dichogamy, herkogamy, and self-incompatibility. Dioecy is a dimorphic sexual system, alongside gynodioecy and androdioecy. In zoology In zoology, dioecious species may be opposed to hermaphroditic species, meaning that an individual is either male or female, in which case the synonym gonochory is more often used. Most animal species are dioecious (gon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayna Grandifolia
Mayna may refer to: * Mayna (inhabited locality), several inhabited localities in Russia * Mayna (Rohtak), a village in Rohtak District of the State of Haryana in India * ''Mayna'' (plant), a genus of plants in the family Achariaceae *Mayna (tribe), one of several Jivaroan peoples The Jivaroan peoples are the indigenous peoples in the headwaters of the Marañon River and its tributaries, in northern Peru and eastern Ecuador. The tribes speak the Chicham languages. Their traditional way of life relies on gardening, and ... in the upper Amazon * ''Myna'' (film), a 2013 Kannada film {{Disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayna Hystricina
Mayna may refer to: * Mayna (inhabited locality), several inhabited localities in Russia * Mayna (Rohtak), a village in Rohtak District of the State of Haryana in India * ''Mayna'' (plant), a genus of plants in the family Achariaceae *Mayna (tribe), one of several Jivaroan peoples The Jivaroan peoples are the indigenous peoples in the headwaters of the Marañon River and its tributaries, in northern Peru and eastern Ecuador. The tribes speak the Chicham languages. Their traditional way of life relies on gardening, and ... in the upper Amazon * ''Myna'' (film), a 2013 Kannada film {{Disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayna Odorata
Mayna may refer to: * Mayna (inhabited locality), several inhabited localities in Russia * Mayna (Rohtak), a village in Rohtak District of the State of Haryana in India * ''Mayna'' (plant), a genus of plants in the family Achariaceae *Mayna (tribe), one of several Jivaroan peoples The Jivaroan peoples are the indigenous peoples in the headwaters of the Marañon River and its tributaries, in northern Peru and eastern Ecuador. The tribes speak the Chicham languages. Their traditional way of life relies on gardening, and ... in the upper Amazon * ''Myna'' (film), a 2013 Kannada film {{Disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayna Parvifolia
Mayna may refer to: * Mayna (inhabited locality), several inhabited localities in Russia * Mayna (Rohtak), a village in Rohtak District of the State of Haryana in India * ''Mayna'' (plant), a genus of plants in the family Achariaceae *Mayna (tribe), one of several Jivaroan peoples The Jivaroan peoples are the indigenous peoples in the headwaters of the Marañon River and its tributaries, in northern Peru and eastern Ecuador. The tribes speak the Chicham languages. Their traditional way of life relies on gardening, and ... in the upper Amazon * ''Myna'' (film), a 2013 Kannada film {{Disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayna Pubescens
''Mayna pubescens'' is a species of flowering plant in the Achariaceae family that is endemic to Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car .... References pubescens Endemic flora of Colombia Endangered plants Taxonomy articles created by Polbot {{malpighiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.svg "Click for more on -> Americas")
.jpg "Click for more on -> Tropical Rainforest")
