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Podostemales
Podostemaceae (riverweed family), a family in the order Malpighiales, comprise about 50 genera and species of more or less thalloid aquatic herbs. Distribution and habitat They are found mostly in tropical and subtropical areas worldwide. Many species are found in a very small geographic area, often even just a single river or waterfall. Because of their small range, many species are seriously threatened, especially from habitat loss (for example, due to dams flooding their habitat). Riverweeds adhere to hard surfaces (generally rock) in rapids and waterfalls of rivers. They are submerged when water levels are high, but during the dry season they live a terrestrial existence, flowering at this time. Their root anatomy is specialized for the purpose of clinging to rocks, and in fact details of the root structure are one of the ways of classifying riverweeds. Ecology In many rivers, Podostemaceae are an important food source for a wide range of animals. For example, the ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Claude Richard
Louis Claude Marie Richard (19 September 1754 – 6 June 1821) was a French botanist and botanical illustrator. Richard was born at Versailles. Between 1781 and 1789 he collected botanical specimens in Central America and the West Indies. On his return he became a professor at the École de médecine in Paris. His books included ''Demonstrations botaniques'' (1808), ''De Orchideis europaeis'' (1817), ''Commentatio botanica de Conifereis et Cycadeis'' (1826) and ''De Musaceis commentatio botanica'' (1831). He gave us the special description terminology for the orchids, such as pollinium and gynostemium. The genus ''Richardia'' Kunth, (Araceae) was named in his honor. It is now a synonym of the genus ''Zantedeschia'' . This botanist is denoted by the author abbreviation when citing a botanical name. His son was another notable botanist, Achille Richard. He also discovered Morgat in the 1880s. Eponyms A species of Caribbean lizard, ''Anolis richardii'', is named in honor of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ossubtus
''Ossubtus'' is a genus of fish in the family Serrasalmidae. It contains a single species, ''Ossubtus xinguense'', the parrot pacu or eaglebeak pacu, The species is endemic to rapids in the Xingu River basin in the Brazilian Amazon.Andrade, M.C., Sousa, L.M., Ota, R.P., Jégu, M. & Giarrizzo, T. (2016)Redescription and Geographical Distribution of the Endangered Fish ''Ossubtus xinguense'' Jégu 1992 (Characiformes, Serrasalmidae) with Comments on Conservation of the Rheophilic Fauna of the Xingu River.''PLoS ONE, 11 (9): e0161398.'' This endangered species is primarily a herbivore. Description The body of ''Ossubtus xinguense'' is ovoid in shape. The profile of the snout is blunt. In young fish, the mouth is terminal (pointing forward); however, as the fish grows, the mouth turns downward and becomes strictly ventral in individuals longer than . This gives the mouth a beak-like appearance. It reaches up to in total length and about in weight. Range and habitat ''Ossubtus xingu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castelnavia
''Castelnavia'' is a genus of flowering plants belonging to the family Podostemaceae Podostemaceae (riverweed family), a family in the order Malpighiales, comprise about 50 genera and species of more or less thalloid aquatic herbs. Distribution and habitat They are found mostly in tropical and subtropical areas worldwide. Ma .... Its native range is Brazil. Species: *'' Castelnavia cuneifolia'' *'' Castelnavia fimbriata'' *'' Castelnavia fluitans'' *'' Castelnavia lindmaniana'' *'' Castelnavia monandra'' *'' Castelnavia multipartita'' *'' Castelnavia noveloi'' *'' Castelnavia orthocarpa'' *'' Castelnavia pendulosa'' *'' Castelnavia princeps'' *'' Castelnavia pusillina'' *'' Castelnavia serpens'' References {{Taxonbar, from=Q9703658 Podostemaceae Malpighiales genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apinagia
''Apinagia'' is a genus of flowering plants belonging to the family Podostemaceae Podostemaceae (riverweed family), a family in the order Malpighiales, comprise about 50 genera and species of more or less thalloid aquatic herbs. Distribution and habitat They are found mostly in tropical and subtropical areas worldwide. Ma .... Its native range is Southern Tropical America. Species: *'' Apinagia aripecuruensis'' *'' Apinagia arminensis'' *'' Apinagia batrachiifolia'' *'' Apinagia brejoagrestinensis'' *'' Apinagia brevicaulis'' *'' Apinagia crispa'' *'' Apinagia digitata'' *'' Apinagia dissecta'' *'' Apinagia divaricata'' *'' Apinagia flexuosa'' *'' Apinagia fluitans'' *'' Apinagia fucoides'' *'' Apinagia gardneriana'' *'' Apinagia glaziovii'' *'' Apinagia goejei'' *'' Apinagia guairaensis'' *'' Apinagia guyanensis'' *'' Apinagia hulkiana'' *'' Apinagia itanensis'' *'' Apinagia kochii'' *'' Apinagia latifolia'' *'' Apinagia leptophylla'' *'' Apinagia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angolaea
''Angolaea'' is a genus of flowering plants belonging to the family Podostemaceae Podostemaceae (riverweed family), a family in the order Malpighiales, comprise about 50 genera and species of more or less thalloid aquatic herbs. Distribution and habitat They are found mostly in tropical and subtropical areas worldwide. Ma .... Its native range is Angola. Species: *'' Angolaea fluitans'' References {{Taxonbar, from=Q16480672 Podostemaceae Malpighiales genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superorder
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may foll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolf Dahlgren
Rolf Martin Theodor Dahlgren (7 July 1932 – 14 February 1987) was a Swedish- Danish botanist and professor at the University of Copenhagen from 1973 to his death. Life Dahlgren was born in Örebro on 7 July 1932 to apothecary Rudolf Dahlgren and wife Greta née Dahlstrand. He took his MSc degree in Biology in (1955) and PhD degree in Botany in (1963) at Lund University. He was killed in a car crash in Scania, Sweden on 14 February 1987. Career He continued working on South African plants during expeditions in 1956-57 and 1965–66, while affiliated with the ''Botanical Museum'' in Lund as ''docent''. In 1973, he became professor of botany at the University of Copenhagen. Here, he developed his system of Angiosperm classification, based on many more characters simultaneously than previous systems, most notably many chemical plant traits (see also chemotaxonomy). Although the system was first presented in Danish, it rapidly gained widespread acceptance, particularly due to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angiosperm Phylogeny Website
The Angiosperm Phylogeny Website (or APweb) is a website dedicated to research on angiosperm phylogeny and taxonomy. The site is hosted by the Missouri Botanical Garden website and maintained by researchers, Peter F. Stevens and Hilary M. Davis. Peter F. Stevens is a member of the Angiosperm Phylogeny Group The Angiosperm Phylogeny Group (APG) is an informal international group of systematic botanists who collaborate to establish a consensus on the taxonomy of flowering plants (angiosperms) that reflects new knowledge about plant relationships disc ... (APG). The taxonomy presented is broadly based on the work of the APG, with modifications to incorporate new results. References External links * , hosted by thMissouri Botanical Garden Plant taxonomy American science websites Angiosperm taxonomy Angiosperm Phylogeny Group Online taxonomy databases Missouri Botanical Garden {{botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonnetiaceae
Bonnetiaceae is a family of flowering plants, consisting of 4 genera and 41 species. The family is Neotropical, with the exception of the genus ''Ploiarium'', which is found in Malesia. It is sister to the family Clusiaceae The Clusiaceae or Guttiferae Juss. (1789) (''nom. alt. et cons.'' = alternative and valid name) are a family (biology), family of plants including 13 genera and ca 750 species. Several former members of Clusiacae are now placed in Calophyllaceae .... References Malpighiales families {{Malpighiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypericaceae
Hypericaceae is a plant family in the order Malpighiales, comprising six to nine genera and up to 700 species, and commonly known as the St. John's wort family. Members are found throughout the world apart from extremely cold or dry habitats. ''Hypericum'' and '' Triadenum'' occur in temperate regions but other genera are mostly tropical. Characteristics Members of this family are annual or perennial herbs, subshrubs or shrubs. The leaves are simple and entire, in opposite pairs; they are sometimes dotted with black or translucent glandular spots. The inflorescence consists of a branched, flat-topped cluster, each flower being radially symmetrical, with a superior ovary. Flowers have the following components: sepals, four or five, which tend to persist; petals four or five, usually yellow, sometimes dotted with black specks; stamens many, on long filaments; styles, three to five, often fused at the base. The fruit has a dehiscent capsule which splits open when ripe to release ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clusiaceae
The Clusiaceae or Guttiferae Juss. (1789) (''nom. alt. et cons.'' = alternative and valid name) are a family (biology), family of plants including 13 genera and ca 750 species. Several former members of Clusiacae are now placed in Calophyllaceae and Hypericaceae. They are mostly trees and shrubs, with milky sap and fruits or capsule (fruit), capsules for seeds. The family is primarily tropical. More so than many plant families, it shows large variation in plant morphology (for example, three to 10, fused or unfused petals, and many other traits). According to the Angiosperm Phylogeny Group, APG III, this family belongs to the order Malpighiales. One feature which is sometimes found in this family, and rarely in others (e.g., Malpighiaceae), is providing pollinators with rewards other than pollen or nectar; specifically, some species offer resin which bees use in nest construction (all three rewards are found in different species of the Clusiaceae). Taxonomic history The family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
