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Melanthaceae
Melanthiaceae, also called the bunchflower family, is a family of flowering herbaceous perennial plants native to the Northern Hemisphere. Along with many other lilioid monocots, early authors considered members of this family to belong to the family Liliaceae, in part because both their sepals and petals closely resemble each other and are often large and showy like those of lilies, while some more recent taxonomists have placed them in a family Trilliaceae. The most authoritative modern treatment, however, the APG III system of 2009 (unchanged from the 2003 APG II system and the 1998 APG system), places the family in the order Liliales, in the clade monocots. Circumscribed in this way, the family includes up to 17 genera. Familiar members of the family include the genera ''Paris'' and ''Trillium''. Genera and species , the World Checklist of Selected Plant Families accepted 17 genera in the family.Search for "Melanthiaceae", They have been divided into five tribes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liliales
Liliales is an order of monocotyledonous flowering plants in the Angiosperm Phylogeny Group and Angiosperm Phylogeny Web system, within the lilioid monocots. This order of necessity includes the family Liliaceae. The APG III system (2009) places this order in the monocot clade. In APG III, the family Luzuriagaceae is combined with the family Alstroemeriaceae and the family Petermanniaceae is recognized. Both the order Lililiales and the family Liliaceae have had a widely disputed history, with the circumscription varying greatly from one taxonomist to another. Previous members of this order, which at one stage included most monocots with conspicuous tepals and lacking starch in the endosperm are now distributed over three orders, Liliales, Dioscoreales and Asparagales, using predominantly molecular phylogenetics. The newly delimited Liliales is monophyletic, with ten families. Well known plants from the order include '' Lilium'' (lily), tulip, the North American wildflower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schoenocaulon
''Schoenocaulon'' is a North American genus of perennial herbaceous flowering plants, ranging from the southern United States to Peru. It is a member of the Melanthiaceae, according to the APG III classification system, and is placed in the tribe Melanthieae. Unlike other genera in the tribe, the flowers are arranged in a spike; depending on the species the flower stalks for each flower are either very short or completely absent. Feathershank is a common name, the medicinally used ''S. officinale'' is called Sabadilla (pronunciation: /sab-uh-dil-uh/, IPA: /ˌsæb əˈdɪl ə/). Plants generally grow in chaparral, oak, or pine forests. Grazing has narrowed the natural ranges of some species to only steep, rocky terrain.Frame, D. 1990. A revision of ''Schoenocaulon'' (Liliaceae: Melanthieae). Ph. D. Thesis. The City University of New York. New York. 269 pp. Mexico is the center of ''Schoenocaulon'' diversity, with 22 endemic species - some with distributions limited to single ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. If we determine that species X, Y, and Z belong in Genus A, and species T, U, V, and W belong in Genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecular phylogenetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chionographis
''Chionographis'' is a genus of plants in the Melanthiaceae first described as a genus in 1867. This genus is native to China, Japan, and Korea. ''Chionographis'' species are perennial flowering plants that grow from rhizomes. They produce a basal rosette of evergreen leaves, from the center of which emerges a flowering scape. The scape produces a spike of many small white flowers. The flowers are zygomorphic in shape, and when perfect have six tepals, one pistil, and six stamens. However, not all individuals have perfect flowers. Many populations feature gynodioecy, and more rarely, androdioecy. They are native to China, Japan, and Korea, and typically grow in moist places in the temperate forests' understory. ; species * '' Chionographis chinensis'' K.Krause - Fujian, Guangdong, Guangxi, Hunan * '' Chionographis hisauchiana'' (Okuyama) N.Tanaka - Japan * '' Chionographis japonica'' (Willd.) Maxim. - Japan, Jeju-do * '' Chionographis koidzumiana'' Ohwi - Japan * '' Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chamaelirium
''Chamaelirium'' is a genus of flowering plants containing the single species ''Chamaelirium luteum'', commonly known as blazing-star, devil's bit, false unicorn, fairy wand, and helonias. It is a perennial herb native to the eastern United States. It can be found in a variety of habitats, including wet meadows and deciduous woodlands. ''Chamaelirium luteum'' has a basal rosette of around six 8–15 cm leaves, from which a single spike-like raceme inflorescence (1–1.5 cm diameter, 8–30 cm length) emerges. The plants are generally dioecious, with male-biased gender ratios in a given population. This is due to higher mortality of female plants, and the tendency of female plants to flower less frequently. Female stalks tend to be taller, giving a total maximum plant height of about 1.2 m, but also tend to have about ten times fewer flowers. ''Chamaelirium luteum'' is the only member of its monotypic genus, and is quite rare at the fringes of its range. Distribu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ypsilandra
''Ypsilandra'' is a genus of at least six herbaceous plant species, first described as a genus in 1888. This genus is a member of the Melanthiaceae and is native to East Asia (China, the Himalayas, Myanmar, Thailand). ''Ypsilandra'' species are perennial plants that grow from thick rhizomes. They are associated with sloping, forested habitats. They are very infrequently cultivated in the West. Their leaves are generally long and thin, growing in a rosette from the base of the plant. ''Ypsilandra'' species produce flowers on a long scape arising from the intersection of the leaves and the stem. The inflorescences consist of a cluster of nodding, radially-symmetrical tube-shaped flowers with six tepals. The stamens protrude beyond the tepals. Depending on the species, the tepals may be white, pink, purple, or yellow. ; Species * ''Ypsilandra alpina'' F.T.Wang & Tang - Tibet, Yunnan, N Myanmar * ''Ypsilandra cavaleriei'' H.Lév. & Vaniot - Guangdong, Guangxi, Guizhou, Hunan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heloniopsis
''Heloniopsis'', also called swamppink, is a genus of plants in the Melanthiaceae, first described as a genus in 1859. It is native to east Asia (Japan, Taiwan, Korea, Sakhalin Island in Russia). ;Species * ''Heloniopsis kawanoi'' (Koidz.) Honda – Nansei-shoto * ''Heloniopsis koreana'' Fuse, N.S.Lee & M.N.Tamura – Korean swamppink – Korea * ''Heloniopsis leucantha'' (Koidz.) Honda – Nansei-shoto * ''Heloniopsis orientalis'' (Thunb.) Tanaka – Korea, Sakhalin, Japan ** ''Heloniopsis orientalis'' var. ''flavida'' (Nakai) Ohwi – white oriental swamppink – Korea * ''Heloniopsis tubiflora'' Fuse, N.S.Lee & M.N.Tamura – tubular-flower swamppink – Korea * '' Heloniopsis umbellata'' Baker – Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the no ... References Extern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helonias
''Helonias bullata'' (swamp pink) is a rare perennial rhizomatous herb native to the eastern United States, the only known species in the genus ''Helonias''. The root system is extensive in comparison to the apparent size of the plant on the surface. Blooming in March to May, its fragrant flowers are pink and occur in a cluster at the end a vertical spike which may reach up to 3' in height. It has evergreen, lance-shaped, and parallel-veined leaves ranging from dark green to light yellow green in color that form a basal rosette. Swamp pink is a federally threatened species that was historically distributed from Staten Island, New York to the southern Appalachians. Currently, New Jersey supports the largest and most numerous populations, but there are populations in six other states: Delaware; Maryland; Virginia; West Virginia;North Carolina; South Carolina, and Georgia. There is also some unverified indication that a population of swamp pink has survived on Staten Island. Pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melanthieae
Melanthieae is a tribe of flowering plants within the family Melanthiaceae. Molecular phylogenetic studies in the 21st century have resulted in a large-scale reassignment of many of its species to different genera; in particular the genus '' Zigadenus'' (deathcamases) has been restricted to a single species, ''Zigadenus glaberrimus''. Plants contain alkaloids, making them unpalatable to grazing animals; many are very poisonous to both animals and humans. Description Like the family as a whole, members of the tribe are "lilioid monocots", i.e. their flowers superficially resemble those of the genus ''Lilium'', with six tepals not differentiated into sepals and petals. As with other lilioid monocots, they were previously included in a broadly defined family Liliaceae. They are found mainly in woodland or alpine habitats in the temperate regions of the Northern Hemisphere (North America, Central America, and Asia), with one species found in South America. They are perennials, grow ... [...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 ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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