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Pteleocarpa
''Pteleocarpa'' is a genus of flowering plants. The only member of the genus is the western Malesian tree ''Pteleocarpa lamponga''.David J. Mabberley. 2008. ''Mabberley's Plant-Book; a portable dictionary of plants, their classification and uses'' 3rd edition (2008). Cambridge University Press: UK. . (See ''External links'' below). It has had a varied systematic history and has been placed in the families Icacinaceae, Cardiopteridaceae, Boraginaceae, and others.Kanokorn Rueangsawang and Pranom Chantaranothai. 2014. "Studies on Thai Pteleocarpaceae". ''Tropical Natural History'' 14(1):1-6. (See ''External links'' below). It has long been regarded as enigmatic. For example, its winged fruit is quite odd within the family Boraginaceae, where it was usually placed in the 2000s. The family name Pteleocarpaceae had been used, but was not validly published until 2011, when the required description was published in Kew Bulletin.Richard K. Brummitt. 2011. "Valid publication of the fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gelsemiaceae
Gelsemiaceae is a family of flowering plants, belonging to the order Gentianales. The family contains only three genera: ''Gelsemium'', '' Mostuea'' and '' Pteleocarpa''. ''Gelsemium'' has three species, one native to Southeast Asia and southern China and two native to Central America, Mexico, and the southeastern United States. The eight species of ''Mostuea'' are native to tropical areas of South America, Africa, and Madagascar. The two genera were formerly classified in the family Loganiaceae.Peter F. Stevens (2001 onwards). "Gelsemiaceae" At: Angiosperm Phylogeny Website. At: Botanical Databases At: Missouri Botanical Garden Website. (see ''External links'' below) ''Pteleocarpa'' was originally placed in Boraginaceae or in its own family Pteleocarpaceae, but it is most closely related to Gelsemiaceae with which it shares significant characters. The family Gelsemiaceae was described in 1994.Lena Struwe, Victor A. Albert, and Birgitta Bremer. 1994. "Cladistics and family leve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mostuea
''Mostuea'' is one of only three genera of flowering plants belonging to the small family Gelsemiaceae (the other two being ''Gelsemium'' and '' Pteleocarpa''). ''Mostuea'' and ''Gelsemium'' were formerly placed in the family Loganiaceae, while ''Pteleocarpa'' was placed variously in the families Icacinaceae, Cardiopteridaceae, Boraginaceae, and others, before the description of the Gelsemiaceae was altered formally to accommodate it in 2014.Peter F. Stevens (2001 onwards). "Gelsemiaceae" At: Angiosperm Phylogeny Website. At: Botanical Databases At: Missouri Botanical Garden Website.Nancy F. Refulio-Rodriguez and Richard G. Olmstead. 2014. "Phylogeny of Lamiidae". ''American Journal of Botany'' 101(2):287-299. . ''Mostuea'' is native to Africa and South America. Anecdotal evidence suggests that the roots of certain ''Mostuea'' species are used as ritual aphrodisiacs and entheogens in West Tropical Africa.De Smet, P.A.G.M. Some ethnopharmacological notes on African hallucinogens '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daniel Oliver (botanist)
Daniel Oliver, FRS (6 February 1830, Newcastle upon Tyne – 21 December 1916) was an English botanist. He was Librarian of the Herbarium, Royal Botanic Gardens, Kew from 1860–1890 and Keeper there from 1864–1890, and Professor of Botany at University College, London from 1861–1888. In 1864, while at UCL, he published ''Lessons in Elementary Biology'', based upon material left in manuscript by John Stevens Henslow, and illustrated by Henslow's daughter, Anne Henslow Barnard of Cheltenham. With a second edition in 1869 and a third in 1878 this book was reprinted until at least 1891. Oliver regarded this book as suitable for use in schools and for young people remote from the classroom and laboratory. He was elected a member of the Linnean Society, awarded their Gold Medal in 1893, and awarded a Royal Medal by the Royal Society in 1884. He married in 1861 and was the father of two daughters and a son, Francis Wall Oliver. In 1895, botanist Tiegh published ''Oliverella'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valid Publication
In botanical nomenclature, a validly published name is a name that meets the requirements in the ''International Code of Nomenclature for algae, fungi, and plants'' for valid publication. Valid publication of a name represents the minimum requirements for a botanical name to exist: terms that appear to be names but have not been validly published are referred to in the ''ICN'' as "designations". A validly published name may not satisfy all the requirements to be '' legitimate''. It is also not necessarily the correct name for a particular taxon and rank. Nevertheless, invalid names (''nomen invalidum'', ''nom. inval.'') are sometimes in use. This may occur when a taxonomist finds and recognises a taxon and thinks of a name, but delays publishing it in an adequate manner. A common reason for this is that a taxonomist intends to write a ''magnum opus'' that provides an overview of the group, rather than a series of small papers. Another reason is that the code of nomenclature chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gelsemium
''Gelsemium'' is an Asian and North American genus of flowering plants belonging to family Gelsemiaceae. The genus contains three species of shrubs to straggling or twining climbers. Two species are native to North America, and one to China and Southeast Asia. includes description, drawings, distribution map, etc. Carl Linnaeus first classified ''G. sempervirens'' as ''Bignonia sempervirens'' in 1753; Antoine Laurent de Jussieu created a new genus for this species in 1789. ''Gelsemium'' is a Latinized form of the Italian word for jasmine, ''gelsomino''. ''G. elegans'' has the common name ''"heartbreak grass"''. Properties All three species of this genus are poisonous. Active components The active components of gelsemium are the alkaloids, which are present in a concentration of about 0.5%. These consist primarily of gelsemine (a highly toxic compound related to strychnine), with lesser amounts of related compounds (gelsemicine, gelsedine, etc). Other compounds found in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Taxon
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sample (material)
In general, a sample is a limited quantity of something which is intended to be similar to and represent a larger amount of that thing(s). The things could be countable objects such as individual items available as units for sale, or an uncountable material. Even though the word "sample" implies a smaller quantity taken from a larger amount, sometimes full biological or mineralogical specimens are called samples if they are taken for analysis, testing, or investigation like other samples. They are also considered samples in the sense that even whole specimens are "samples" of the full population of many individual organisms. The act of obtaining a sample is called "sampling" and can be performed manually by a person or by automatic process. Samples of material can be taken or provided for testing, analysis, investigation, quality control, demonstration, or trial use. Sometimes, sampling may be performed continuously. Aliquot part In science, a representative liquid sample ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamiids
In the APG IV system (2016) for the classification of flowering plants, the name asterids denotes a clade (a monophyletic group). Asterids is the largest group of flowering plants, with more than 80,000 species, about a third of the total flowering plant species. Well-known plants in this clade include the common daisy, forget-me-nots, nightshades (including potatoes, eggplants, tomatoes, chili peppers and tobacco), the common sunflower, petunias, yacon, morning glory, sweet potato, coffee, lavender, lilac, olive, jasmine, honeysuckle, ash tree, teak, snapdragon, sesame, psyllium, garden sage, table herbs such as mint, basil, and rosemary, and rainforest trees such as Brazil nut. Most of the taxa belonging to this clade had been referred to as Asteridae in the Cronquist system (1981) and as Sympetalae in earlier systems. The name asterids (not necessarily capitalised) resembles the earlier botanical name but is intended to be the name of a clade rather than a formal ranke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetic
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research
Research is "creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error. These activities are characterized by accounting and controlling for biases. A research project may be an expansion on past work in the field. To test the validity of instruments, procedures, or experiments, research may replicate elements of prior projects or the project as a whole. The primary purposes of basic research (as opposed to applied research) are documentation, discovery, interpretation, and the research and development (R&D) of methods and systems for the advancement of human knowledge. Approaches to research depend on epistemologies, which vary considerably both within and between humanities and sciences. There are several forms of research: scientific, humanities, artistic, econ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Morphology
Phytomorphology is the study of the physical form and external structure of plants.Raven, P. H., R. F. Evert, & S. E. Eichhorn. ''Biology of Plants'', 7th ed., page 9. (New York: W. H. Freeman, 2005). . This is usually considered distinct from plant anatomy, which is the study of the internal structure of plants, especially at the microscopic level. Plant morphology is useful in the visual identification of plants. Recent studies in molecular biology started to investigate the molecular processes involved in determining the conservation and diversification of plant morphologies. In these studies transcriptome conservation patterns were found to mark crucial ontogenetic transitions during the plant life cycle which may result in evolutionary constraints limiting diversification. Scope Plant morphology "represents a study of the development, form, and structure of plants, and, by implication, an attempt to interpret these on the basis of similarity of plan and origin". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kew Bulletin
The ''Kew Bulletin'' is a quarterly peer-reviewed scientific journal on plant and fungal taxonomy and conservation published by Springer Science+Business Media on behalf of the Royal Botanic Gardens, Kew. Articles on palynology, cytology, anatomy, phytogeography, and phytochemistry that relate to taxonomy are also included. The journal was established in 1887 as the ''Kew Bulletin of Miscellaneous Information'' by William Turner Thiselton-Dyer, then director of the Royal Botanic Gardens, Kew. It sought to facilitate communication between botanists at Kew and distant parts of the British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading post ..., and prioritised study of information of economic importance. Abstracting and indexing The journal is abstracted and indexed in: Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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