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International Code Of Nomenclature For Cultivated Plants
The ''International Code of Nomenclature for Cultivated Plants'' (ICNCP) is a guide to the rules and regulations for naming cultigens, plants whose origin or selection is primarily due to intentional human activity. It is also known as Cultivated Plant Code. Cultigens under the purview of the ICNCP include ''cultivars'', Groups (''cultivar groups''), and '' grexes''. All organisms traditionally considered to be plants (including algae and fungi) are included. Taxa that receive a name under the ''ICNCP'' will also be included within taxa named under the International Code of Nomenclature for algae, fungi, and plants, for example, a cultivar is a member of a species. Brief history The first edition of the ''ICNCP'', which was agreed in 1952 in Wageningen and published in 1953, has been followed by seven subsequent editions – in 1958 (Utrecht), 1961 (update of 1958), 1969 (Edinburgh), 1980 (Seattle), 1995 (Edinburgh), 2004 (Toronto) and 2009 (Wageningen). The ninth (most recent) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultivated Plant Taxonomy
Cultivated plant taxonomy is the study of the theory and practice of the science that identifies, describes, classifies, and names cultigens—those plants whose origin or selection is primarily due to intentional human activity. Cultivated plant taxonomists do, however, work with all kinds of plants in cultivation. Cultivated plant taxonomy is one part of the study of horticultural botany which is mostly carried out in botanical gardens, large nurseries, universities, or government departments. Areas of special interest for the cultivated plant taxonomist include: searching for and recording new plants suitable for cultivation (plant collecting, plant hunting); communicating with and advising the general public on matters concerning the Biological classification, classification and nomenclature of cultivated plants and carrying out original research on these topics; describing the cultivated plants of particular regions (horticultural floras); maintaining databases, herbarium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Stearn
William Thomas Stearn (; 16 April 1911 – 9 May 2001) was a British botanist. Born in Cambridge in 1911, he was largely self-educated and developed an early interest in books and natural history. His initial work experience was at a Cambridge bookshop, but he also had an occupation as an assistant in the university botany department. At the age of 29, he married Eldwyth Ruth Alford, who later became his collaborator. While at the bookshop, he was offered a position as a librarian at the Royal Horticultural Society in London (1933–1952). From there he moved to the Natural History Museum as a scientific officer in the botany department (1952–1976). After his retirement, he continued working there, writing, and serving on a number of professional bodies related to his work, including the Linnean Society, of which he became president. He also taught botany at Cambridge University as a visiting professor (1977–1983). Stearn is known for his work in botanical taxono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mespilus
''Mespilus'', commonly called medlar, is a genus of flowering plants in the family Rosaceae containing the single species '' Mespilus germanica'' of southwest Asia. It is also found in some countries in the Balkans, especially in Albanian, Macedonian and Bulgarian regions, and in western parts of Caucasian Georgia. A second proposed species, '' Mespilus canescens'', discovered in North America in 1990, proved to be a hybrid between ''M. germanica'' and one or more species of hawthorn, and is properly known as ''× Crataemespilus canescens''. Plant ''Mespilus'' forms deciduous large shrubs to small trees growing up to tall. The fruit is a matte brown pome. History ''Mespilus germanica'' is apparently native only to southwest Asia and southeastern Europe, i.e. near the Black Sea coast and western Mediterranean, and Asia Minor, as well as the Caucasus and northern Iran, but it has an ancient history of cultivation and wild plants exist in a much wider area; it was grown by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crataegus
''Crataegus'' (), commonly called hawthorn, quickthorn, thornapple, Voss, E. G. 1985. ''Michigan Flora: A guide to the identification and occurrence of the native and naturalized seed-plants of the state. Part II: Dicots (Saururaceae–Cornaceae)''. Cranbrook Institute of Science and University of Michigan Herbarium, Ann Arbor, Michigan. May-tree,Graves, Robert. ''The White Goddess: A Historical Grammar of Poetic Myth'', 1948, amended and enlarged 1966, New York: Farrar, Straus and Giroux. whitethorn, Mayflower or hawberry, is a genus of several hundred species of shrubs and trees in the family Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia, North Africa and North America. The name "hawthorn" was originally applied to the species native to northern Europe, especially the common hawthorn ''C. monogyna'', and the unmodified name is often so used in Britain and Ireland. The name is now also applied to the entire genus and to the related Asi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chimera (biology)
A genetic chimerism or chimera ( or ) is a single organism composed of cells of different genotypes. Animal chimeras can be produced by the fusion of two (or more) embryos. In plants and some animal chimeras, mosaicism involves distinct types of tissue that originated from the same zygote but differ due to mutation during ordinary cell division. Normally, genetic chimerism is not visible on casual inspection; however, it has been detected in the course of proving parentage. More practically, in agronomy, "chimera" indicates a plant or portion of a plant whose tissues are made up of two or more types of cells with different genetic makeup; it can derive from a bud mutation or, more rarely, at the grafting point, from the concrescence of cells of the two bionts; in this case it is commonly referred to as a "graft hybrid", although it is not a hybrid in the genetic sense of "hybrid". In contrast, an individual where each cell contains genetic material from two organisms of di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
+ Crataegomespilus
+ ''Crataegomespilus'' is the generic name applied to graft-chimeras between the genera ''Crataegus'' and ''Mespilus''. It should not be confused with × Crataemespilus, × ''Crataemespilus'', which is applied to sexual hybrids between those genera, nor with ''Chamaemespilus'' which is a Segregate (taxonomy), segregate genus or subgenus of ''Sorbus''. References External links * Maleae Graft chimeras {{maleae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paphiopedilum Lawrenceanum
''Paphiopedilum'', often called the Venus slipper, is a genus of the lady slipper orchid subfamily ''Cypripedioideae'' of the flowering plant family Orchidaceae. The genus comprises some 80 accepted taxa including several natural hybrids. The genus is native to Southeast Asia, the Indian Subcontinent, southern China, New Guinea and the Solomon and Bismarck Islands. The type species of this genus is '' Paphiopedilum insigne''. The species and their hybrids are extensively cultivated, and are known as either paphiopedilums, or by the abbreviation paphs in horticulture. Due to their popularity, Paphiopedilums have been ruthlessly gathered and poached from the wild, making them very rare or extinct there. As soon as a new species or population is discovered, poachers will take the plants for orchid collectors who pay large sums of money. Habitat destruction is an additional factor contributing to their rarity. Description ''Paphiopedilum'' species naturally occur among humus l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paphiopedilum Callosum
''Paphiopedilum callosum'' is a species of orchid found from Vietnam to northwestern Peninsular Malaysia Peninsular Malaysia, historically known as Malaya and also known as West Malaysia or the Malaysian Peninsula, is the western part of Malaysia that comprises the southern part of the Malay Peninsula on Mainland Southeast Asia and the list of isla .... It has been investigated and shown promising results in the treatment of cancer. References callosum Orchids of Cambodia Orchids of Laos Orchids of Malaysia Orchids of Thailand Orchids of Vietnam Pharmacognosy {{Cypripedioideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnolia Denudata
''Magnolia denudata'', the lilytree or Yulan magnolia (), is native to central and eastern China. It has been cultivated in Chinese Buddhist temple gardens since 600 AD. Its flowers were regarded as a symbol of purity in the Tang dynasty and it was planted in the grounds of the emperor's palace. It is the official city flower of Shanghai. Description ''Magnolia denudata'' is a rather low, rounded, thickly branched, and coarse-textured tree to tall. The leaves are ovate, bright green, 15 cm long and 8 cm wide. The bark is a coarse, dark gray. The 10–16 cm white flowers that emerge from early to late spring, while beautiful and thick with a citrus-lemon fragrance, are prone to browning if subjected to frost. Cultivation ''Magnolia denudata'' is used as an ornamental tree in gardens. It is similar to other magnolias in that it likes rich, moist soil and should be planted in a location where it is protected from elemental extremes. This plant has gained the Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnolia Acuminata
''Magnolia acuminata'', commonly called the cucumber tree (often spelled as a single word "cucumbertree"), cucumber magnolia or blue magnolia, is one of the largest magnolias, and one of the cold-hardiest. It is a large forest tree of the Eastern United States and Southern Ontario in Canada. It is a tree that tends to occur singly as scattered specimens, rather than in groves.Sternberg, G., & Wilson, J. (2004). Native Trees for North American Landscapes. Portland, Oregon:Timber Press The cucumber tree is native primarily within the Appalachian belt, including the Allegheny Plateau and Cumberland Plateau, up to western Pennsylvania and New York. There are also numerous disconnected outlying populations through much of the southeastern U.S., and a few small populations in Southern Ontario. In Canada, the cucumber tree is listed as an endangered species and is protected under the Canadian Species at Risk Act.White, D.J. (2000). Update COSEWIC Status Report on the Cucumber Tree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction. Generally, it means that each cell has genetic material from two different organisms, whereas an individual where some cells are derived from a different organism is called a chimera. Hybrids are not always intermediates between their parents such as in blending inheritance (a now discredited theory in modern genetics by particulate inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridization, which include genetic and morph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnolia 'Elizabeth'
''Magnolia'' 'Elizabeth' is a hybrid ''Magnolia'' that is the offspring of a cross between ''Magnolia acuminata'' (cucumbertree) and ''Magnolia denudata'' (Yulan magnolia). It is the result of a breeding program to create yellow-flowered varieties conducted at the Brooklyn Botanic Garden beginning in 1953, and was named for Elizabeth Van Brunt, who donated funds to the Brooklyn Botanic Garden. In cultivation ''Magnolia'' 'Elizabeth' is a deciduous tree typically tall and spreading to wide. It is hardy in Hardiness zone, USDA zones 5 through 8, and is airpollution tolerant. Its Plant Patent was granted in 1977. With its cream to pale yellow flowers, ''Magnolia'' 'Elizabeth' gained the Royal Horticultural Society's Award of Garden Merit in 1993. Unlike species magnolias, it is approved for planting in New York City streets and parks. References Magnolia, Elizabeth Interspecific plant hybrids Ornamental plant cultivars Ornamental trees {{Magnoliales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
