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Shizhenia
''Shizhenia'' is a genus of flowering plants in the family Orchidaceae. Its only species is ''Shizhenia pinguicula'', native to south-east China (north-east Zhejiang). Description ''Shizhenia'' grows from a ovoid shaped tuber. It has a single stem leaf, situated near the base of the stem. The inflorescence consists of a single relatively large flower, rose-red to purple in colour, with a three-lobed lip (labellum). The upper sepal and the lateral petals are grouped to form a hood. The flower has a conical spur, longer than the lip. There are two stigmas that extend under the short rostellum. Taxonomy The species was first described in 1878 as ''Gymnadenia pinguicula''. It was later transferred again to '' Habenaria'' and then '' Amitostigma''. A molecular phylogenetic study in 2014, found that species of ''Amitostigma'', ''Neottianthe'' and ''Ponerorchis'' were mixed together in a single clade, making none of the three genera monophyletic as then circumscribed. ''Amitost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchideae
Orchideae is a tribe of orchids in the subfamily Orchidoideae. Historically, it was divided into 2 subtribes, Orchidinae and Habenariinae. The subtribe Orchidinae alone contains about 1,800 species. However, although some phylogenetic studies have established the monophyly of the subtribes, the generic boundaries are unclear, with many genera as traditionally circumscribed being paraphyletic or even polyphyletic. Species of genera such as ''Habenaria'' and ''Platanthera'' have been placed into both subtribes. A 2017 molecular phylogenetic study found that both subtribes did form clades, but did not formally recognize Habenariinae, because of missing genera and uncertainty over generic boundaries. The Asian species of Orchideae, in particular, have been subject to repeated changes of generic placement from 2012 onwards. As of 2017, Orchideae is divided into 6 subtribes: Brownleeinae, Pachitinae, Huttonaeinae, Orchidinae, Coryciinae, and Disinae. Subtribes Once divided into the O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchidinae
Orchideae is a tribe of orchids in the subfamily Orchidoideae. Historically, it was divided into 2 subtribes, Orchidinae and Habenariinae. The subtribe Orchidinae alone contains about 1,800 species. However, although some phylogenetic studies have established the monophyly of the subtribes, the generic boundaries are unclear, with many genera as traditionally circumscribed being paraphyletic or even polyphyletic. Species of genera such as ''Habenaria'' and ''Platanthera'' have been placed into both subtribes. A 2017 molecular phylogenetic study found that both subtribes did form clades, but did not formally recognize Habenariinae, because of missing genera and uncertainty over generic boundaries. The Asian species of Orchideae, in particular, have been subject to repeated changes of generic placement from 2012 onwards. As of 2017, Orchideae is divided into 6 subtribes: Brownleeinae, Pachitinae, Huttonaeinae, Orchidinae, Coryciinae, and Disinae. Subtribes Once divided into the O ... [...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] |
Monophyly
In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic groups are typically characterised by shared derived characteristics ( synapomorphies), which distinguish organisms in the clade from other organisms. An equivalent term is holophyly. The word "mono-phyly" means "one-tribe" in Greek. Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic group'' consists of all of the descendants of a common ancestor minus one or more monophyletic groups. A '' polyphyletic group'' is characterized by convergent features or habits of scientific interest (for example, night-active primates, fruit trees, aquatic insects). The features by which a polyphyletic group is differentiated from others are not inherited from a common ancestor. These definitions have taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Southeast China
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] |
Royal Botanic Gardens, Kew
Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,100 staff. Its board of trustees is chaired by Dame Amelia Fawcett. The organisation manages botanic gardens at Kew in Richmond upon Thames in south-west London, and at Wakehurst, a National Trust property in Sussex which is home to the internationally important Millennium Seed Bank, whose scientists work with partner organisations in more than 95 countries. Kew, jointly with the Forestry Commission, founded Bedgebury National Pinetum in Kent in 1923, specialising in growing conifers. In 1994, the Castle Howard Arboretum Trust, which runs the Yorkshire Arboretum, was formed as a partnership between Kew and the Castle Howard Estate. In 2019, the organisation had 2,316,699 public visitors at Kew, and 312,813 at Wakehurst. Its site at Kew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Checklist Of Selected Plant Families
The World Checklist of Selected Plant Families (usually abbreviated to WCSP) is an "international collaborative programme that provides the latest peer reviewed and published opinions on the accepted scientific names and synonyms of selected plant families." Maintained by the Royal Botanic Gardens, Kew, it is available online, allowing searches for the names of families, genera and species, as well as the ability to create checklists. The project traces its history to work done in the 1990s by Kew researcher Rafaël Govaerts on a checklist of the genus ''Quercus''. Influenced by the Global Strategy for Plant Conservation, the project expanded. , 173 families of seed plants were included. Coverage of monocotyledon families is complete; other families are being added. There is a complementary project called the International Plant Names Index (IPNI), in which Kew is also involved. The IPNI aims to provide details of publication and does not aim to determine which are accepted spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchidoideae
The Orchidoideae, or the orchidoid orchids, are a subfamily of the orchid family (Orchidaceae) that contains around 3630 species. Species typically have a single (monandrous), fertile anther which is erect and basitonic. Description The subfamily Orchidoideae and the previously recognized subfamily Spiranthoideae are considered the closest allies in the natural group of the monandrous orchids because of several generally shared characters: * a shared terrestrial habit * sectile (capable of being severed) or granular pollinia *erect anthers. Taxonomy Phylogeny of the Orchidoideae is volatile and still subject to change. Historically, the Orchidoideae have been partitioned into up to 6 tribes, including Orchideae, Diseae, Cranichideae, Chloraeeae, Diurideae, and Codonorchideae. However, the most recent molecular phylogenetics analysis led by Chase et al. in 2015 and subsequently by Chen et al. in 2017 indicates that the Orchidoideae should be split into 4 tribes: the Orchide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladogram
A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be consistent with the same cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other evolutionary narratives about ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsaiorchis
''Tsaiorchis'' is a genus of flowering plants in the family Orchidaceae. Taxonomy ''Tsaiorchis'' is placed in the orchid subfamily Orchidoideae, tribe Orchideae, subtribe Orchidineae. The relationship between ''Tsaiorchis'' and the rest of the subtribe is as shown in the cladogram below. Although ''Tsaiorchis'' was shown to be sister to an expanded genus ''Hemipilia'', the two have significant differences. ''Hemipilia'' grows from tubers, ''Tsaiorchis'' has horizontally extending rhizome In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...s. The detailed structure of the flowers is also different. Species ''Tsaiorchis'' contains the following species: *'' Tsaiorchis neottianthoides'' T.Tang & F.T.Wang *'' Tsaiorchis keiskeoides'' (Gagnep.) X.H.Jin, Schuit. & W.T.Jin References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirindhornia (plant)
''Sirindhornia'' is a genus of flowering plants in the family Orchidaceae native to China and Indochina. It contains three known species.Pedersen, H.Æ., Kurzwell, H., Suddee, S. & Cribb, P.J. (2011). Flora of Thailand 12(1): 1-302. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok. *''Sirindhornia mirabilis'' H.A.Pedersen & Suksathan - Thailand *''Sirindhornia monophylla'' (Collett & Hemsl.) H.A.Pedersen & Suksathan - Yunnan, Thailand, Myanmar *''Sirindhornia pulchella'' H.A.Pedersen & Indham. - Thailand 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 External links * * Orchideae genera Orchids of Asia Orchideae {{Orchidoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemipilia
''Hemipilia'' is a genus of plants in the family Orchidaceae. It is native to China, the Himalayas and Southeast Asia. Species # '' Hemipilia calophylla'' C.S.P.Parish & Rchb.f. - Yunnan, Myanmar, Thailand, Vietnam # '' Hemipilia cordifolia'' Lindl. - Sichuan, Taiwan, Tibet, Yunnan, Bhutan, India, Myanmar, Nepal, Assam # '' Hemipilia crassicalcarata'' S.S.Chien - Shaanxi, Shanxi, Sichuan # '' Hemipilia cruciata'' = ''H. cordifolia'' # '' Hemipilia discolor'' Aver. & Averyanova - Vietnam # '' Hemipilia flabellata'' Bureau & Franch. - Guizhou, Sichuan, Yunnan # '' Hemipilia forrestii'' Rolfe - Tibet, Sichuan, Yunnan # '' Hemipilia henryi'' Rolfe - Sichuan, Hubei # '' Hemipilia kwangsiensis'' Tang & F.T.Wang ex K.Y.Lang - Yunnan, Guangxi # '' Hemipilia limprichtii'' Schltr. - Yunnan, Guizhou # ''Hemipilia × mixta ''Hemipilia'' is a genus of plants in the family Orchidaceae. It is native to China, the Himalayas and Southeast Asia. Species # ''Hemipilia calophylla'' C.S.P.Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
