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Ansellia
''Ansellia'' is considered a monotypic genus of orchid, with only one species, ''Ansellia africana'', commonly known as African ansellia or leopard orchid, however, it may in fact be a complex group of species which share common floral structure and growth habit. The plants are found throughout neotropical and subtropical Africa. It was named after John Ansell, an English assistant botanist. who found the first specimens in 1841 on the Fernando Po Island in West Africa. This genus is sometimes abbreviated as Ansel or Aslla in horticultural trade. It is referred to along with ''Grammatophyllum'' as a "trash basket" orchid due to its habit of creating a makeshift container of aerial roots to catch falling leaf litter for nutrients.The Orchids, Natural History and Classification, Robert L. Dressler. Distribution and habitat This orchid is native to tropical and southern Africa, found alongside coasts and rivers in the canopy of trees, usually at elevations lower than 700 m ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eulophia
''Eulophia'', commonly known as corduroy orchids, is a genus of about two hundred species of flowering plants in the orchid family, Orchidaceae. Most ''Eulophia'' orchids are terrestrial but some are deciduous while others are evergreen. They either have an underground rhizome or pseudobulbs on the surface and those species with leaves have them on the end of a fleshy stem. The flowers are arranged on a thin flowering spike, the flowers having sepals which are larger than the petals. The genus is widely distributed but most species are found in Africa and Asia, usually growing in shady places with grass or shrubs in forests. Description Orchids in the genus ''Eulophia'' are mostly terrestrial herbs with either an underground rhizome or pseudobulbs on the surface. The only two epiphytic species occur on Madagascar. Many species have no leaves, but when leaves are present they are long and narrow, sometimes pleated. The flowers are borne on a flowering stem which sometimes appear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
× Cyrtellia
''× Cyrtellia'', abbreviated in trade journals Cyrtl, is an intergeneric hybrid between the orchid genera ''Ansellia'' and ''Cyrtopodium'' (Aslla x Cyrt). References Cymbidieae Orchid nothogenera {{Cymbidieae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tepal
A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very similar appearance), as in ''Magnolia'', or because, although it is possible to distinguish an outer whorl of sepals from an inner whorl of petals, the sepals and petals have similar appearance to one another (as in ''Lilium''). The term was first proposed by Augustin Pyramus de Candolle in 1827 and was constructed by analogy with the terms "petal" and "sepal". (De Candolle used the term ''perigonium'' or ''perigone'' for the tepals collectively; today, this term is used as a synonym for ''perianth''.) p. 39. Origin Undifferentiated tepals are believed to be the ancestral condition in flowering plants. For example, '' Amborella'', which is thought to have separated earliest in the evolution of flowering plants, has flowers with undiffer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
× Eulosellia
The multiplication sign, also known as the times sign or the dimension sign, is the symbol , used in mathematics to denote the multiplication operation and its resulting product. While similar to a lowercase X (), the form is properly a four-fold rotationally symmetric saltire. History The earliest known use of the symbol to represent multiplication appears in an anonymous appendix to the 1618 edition of John Napier's . This appendix has been attributed to William Oughtred, who used the same symbol in his 1631 algebra text, , stating:"Multiplication of species .e. unknownsconnects both proposed magnitudes with the symbol 'in' or : or ordinarily without the symbol if the magnitudes be denoted with one letter." Two earlier uses of a notation have been identified, but do not stand critical examination. Uses In mathematics, the symbol × has a number of uses, including * Multiplication of two numbers, where it is read as "times" or "multiplied by" * Cross product of two v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyrtopodium
''Cyrtopodium'', often abbreviated Cyrt in horticulture, is a genus of more than 40 species of epiphytic and terrestrial orchids found from Florida and Mexico through Argentina. ''Cyrtopodium'' is the only genus in the monotypic subtribe Cyrtopodiinae.Pridgeon, A.M., Cribb, P.J., Chase, M.A. & Rasmussen, F. eds. (2009). Genera Orchidacearum, Volume 5. Oxford Univ. Press. The type species is '' C. andersonii'', originally described in 1812 by A.B. Lambert as ''Cymbidium andersonii'', and in 1813 used by Robert Brown to erect his new genus ''Cyrtopodium''.Brown, Robert, in Aiton, William Townsend. 1813. Hortus Kewensis; or, a Catalogue of the Plants Cultivated in the Royal Botanic Garden at Kew. London (2nd ed.) 5: 216. List of species # '' Cyrtopodium aliciae'' L.Linden & Rolfe # '' Cyrtopodium andersonii'' (Lamb. ex Andrews) R.Br. in W.T.Aiton # '' Cyrtopodium blanchetii'' Rchb.f. # '' Cyrtopodium braemii'' L.C.Menezes # '' Cyrtopodium brandonianum'' Barb.Rodr. # '' Cyrt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
× Cycsellia
The multiplication sign, also known as the times sign or the dimension sign, is the symbol , used in mathematics to denote the multiplication operation and its resulting product. While similar to a lowercase X (), the form is properly a four-fold rotationally symmetric saltire. History The earliest known use of the symbol to represent multiplication appears in an anonymous appendix to the 1618 edition of John Napier's . This appendix has been attributed to William Oughtred, who used the same symbol in his 1631 algebra text, , stating:"Multiplication of species .e. unknownsconnects both proposed magnitudes with the symbol 'in' or : or ordinarily without the symbol if the magnitudes be denoted with one letter." Two earlier uses of a notation have been identified, but do not stand critical examination. Uses In mathematics, the symbol × has a number of uses, including * Multiplication of two numbers, where it is read as "times" or "multiplied by" * Cross product of two v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catasetum
''Catasetum'', abbreviated as Ctsm. in horticultural trade, is a genus of showy epiphytic Orchids, family Orchidaceae, subfamily Epidendroideae, tribe Cymbidieae, subtribe Catasetinae, with 166 species, many of which are highly prized in horticulture. Species of the genus ''Catasetum'' occur from Mexico to Argentina, including much of Central America, the West Indies, and South America. The largest number of species is in Brazil. Biology They have thick, cigar-shaped pseudobulbs which are clustered. The leaves are pleated in the upper part and deciduous. The pseudobulbs become spiny after the leaves have dropped. The inflorescence is borne on the basis. It consists of very fleshy flowers that are unisexual, which is exceptional for orchids. The colorful male and yellowish-green female flowers are typically situated on different plants, a phenomenon known as dioecy. Which type of flower a plant produces is determined by the conditions under which it grows. Male and female flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
× Catasellia
The multiplication sign, also known as the times sign or the dimension sign, is the symbol , used in mathematics to denote the multiplication operation and its resulting product. While similar to a lowercase X (), the form is properly a four-fold rotationally symmetric saltire. History The earliest known use of the symbol to represent multiplication appears in an anonymous appendix to the 1618 edition of John Napier's . This appendix has been attributed to William Oughtred, who used the same symbol in his 1631 algebra text, , stating:"Multiplication of species .e. unknownsconnects both proposed magnitudes with the symbol 'in' or : or ordinarily without the symbol if the magnitudes be denoted with one letter." Two earlier uses of a notation have been identified, but do not stand critical examination. Uses In mathematics, the symbol × has a number of uses, including * Multiplication of two numbers, where it is read as "times" or "multiplied by" * Cross product of two v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cymbidium
''Cymbidium'' , commonly known as boat orchids, is a genus of evergreen flowering plants in the orchid family Orchidaceae. Orchids in this genus are epiphytic, lithophytic, terrestrial or rarely leafless saprophytic herbs usually with pseudobulbs. There are usually between three and twelve leaves arranged in two ranks on each pseudobulb or shoot and lasting for several years. From one to a large number of flowers are arranged on an unbranched flowering stem arising from the base of the pseudobulb. The sepals and petals are all free from and similar to each other. The labellum is significantly different from the other petals and the sepals and has three lobes. There are about fifty-five species and sixteen further natural hybrids occurring in the wild from tropical and subtropical Asia to Australia. Cymbidiums are well known in horticulture and many cultivars have been developed. Description Plants in the genus ''Cymbidium'' are epiphytic, lithophytic or terrestrial plants, or ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
× Ansidium
The multiplication sign, also known as the times sign or the dimension sign, is the symbol , used in mathematics to denote the multiplication operation and its resulting product. While similar to a lowercase X (), the form is properly a four-fold rotationally symmetric saltire. History The earliest known use of the symbol to represent multiplication appears in an anonymous appendix to the 1618 edition of John Napier's . This appendix has been attributed to William Oughtred, who used the same symbol in his 1631 algebra text, , stating:"Multiplication of species .e. unknownsconnects both proposed magnitudes with the symbol 'in' or : or ordinarily without the symbol if the magnitudes be denoted with one letter." Two earlier uses of a notation have been identified, but do not stand critical examination. Uses In mathematics, the symbol × has a number of uses, including * Multiplication of two numbers, where it is read as "times" or "multiplied by" * Cross product of two v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphorkis
''Graphorkis'' is a genus of flowering plants from the orchid family, Orchidaceae. It contains 4 known species, native to Africa and to Madagascar and other islands of the Indian Ocean. See also * List of Orchidaceae genera This is a list of genera in the orchid family ( Orchidaceae), originally according tThe Families of Flowering Plants- L. Watson and M. J. Dallwitz. This list is adapted regularly with the changes published in the ''Orchid Research Newsletter'' whi ... References * (1809) Nouveau Bulletin des Sciences, publié par la Société Philomatique de Paris 1: 318. * 2005. ''Handbuch der Orchideen-Namen. Dictionary of Orchid Names. Dizionario dei nomi delle orchidee''. Ulmer, Stuttgart * (2009) Epidendroideae (Part two). Genera Orchidacearum 5: 71 ff. Oxford University Press. External links * * Eulophiinae genera Eulophiinae {{Cymbidieae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
