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Takhtajania
''Takhtajania'' is a genus of flowering plants of the family Winteraceae, which contains a single species, ''Takhtajania perrieri''. It is endemic to Madagascar. ''Takhtajania'' is found in a small area of the Madagascar subhumid forests. It is a small evergreen tree or shrub, with shiny green lance-shaped leaves and reddish-pink flowers. The first known specimen of the plant was collected in 1909 on the Manongarivo Massif of central Madagascar at an elevation of 1700 meters. In 1963, the French botanist René Paul Raymond Capuron examined the unidentified plant sample, which he identified as a new species, which he named ''Bubbia perrieri'', after the French botanist Henri Perrier de la Bâthie, classifying it in the Australasian Winteraceae genus '' Bubbia''. In 1978, the botanists Baranova and J. F. Leroy reclassified the plant into its own genus, ''Takhtajania'', after the Russian botanist Armen Takhtajan Armen Leonovich Takhtajan or Takhtajian (; surname also transl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winteraceae
Winteraceae is a primitive family of tropical trees and shrubs including 93 species in five genera. It is of particular interest because it is such a primitive angiosperm family, distantly related to Magnoliaceae, though it has a much more southern distribution. Plants in this family grow mostly in the southern hemisphere, and have been found in tropical to temperate climate regions of Malesia, Oceania, eastern Australia, New Zealand, Madagascar and the Neotropics, with most of the genera concentrated in Australasia and Malesia. The five genera, ''Takhtajania'', ''Tasmannia'', ''Drimys'', ''Pseudowintera'', and ''Zygogynum'' s.l. all have distinct geographic extant populations. '' Takhtajania'' includes a single species, ''T. perrieri'', endemic only to Madagascar, '' Tasmannia'' has the largest distribution of genera in Winteraceae with species across the Philippines, Borneo, New Guinea, Eastern Australia, and Tasmania, '' Drimys'' is found in the Neotropical realm, from sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armen Takhtajan
Armen Leonovich Takhtajan or Takhtajian (; surname also transliterated Takhtadjan, Takhtadzhi︠a︡n or Takhtadzhian, pronounced takh-tuh-JAHN; 10 June 1910 – 13 November 2009), was a Soviet- Armenian botanist, one of the most important figures in 20th century plant evolution and systematics and biogeography. His other interests included morphology of flowering plants, paleobotany, and the flora of the Caucasus. He was one of the most influential taxonomists of the latter twentieth century. Life Family Takhtajan was born in Shushi, Russian Empire, present-day disputed Nagorno-Karabakh, on 10 June 1910, to a family of Armenian intellectuals. His grandfather Meliksan Takhtadzhyan Petrovich had been born in Trabzon, Ottoman Empire and was educated in Italy, on the island of San Lazzaro degli Armeni, an Armenian enclave, spoke many languages and worked as a journalist. He died in Paris in 1930. His father, Leon Meliksanovich Takhtadzhyan (1884–1950), was born ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
René Paul Raymond Capuron
René Paul Raymond Capuron (20 October 1921 – 24 August 1971) was a French botanist. He was responsible for an extensive amount of work on the tree flora of Madagascar. Several plants with the Botanical name#Binary name, species epithet of ''capuronii'' honor his name, examples being ''Podocarpus capuronii'' and ''Schizolaena capuronii''. Works Highlights of his work include: *''M. arillata'' — a new species of ''Mauloutchia'', formed from the collection of ''Myristicaceae'' specimens. *''Takhtajania perrieri'' — the only extant representative of the family ''Winteraceae''. Capuron was the first to rediscover the plant, following its last sighting by Henri Perrier de la Bathie, back in 1909. Bibliography *''Essai d'introduction à l'étude de la flore forestière de Madagascar'', Tananarive, ''Inspection Générale des Eaux & Forêts'', 1957, 125 pp. *''Rhopalocarpacées''. In: ''Flore de Madagascar et des Comores'', vol. 127, Paris, 1963, 41 pp. *''Révision des Sapindacée ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Plants
In September 2016, the International Union for Conservation of Nature (IUCN) listed 3654 endangered plant species. Of all evaluated plant species, 17% are listed as endangered. The IUCN also lists 99 subspecies and 101 varieties as endangered. No subpopulations of plants have been evaluated by the IUCN. For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered plants are listed separately. There are 6147 plant species which are endangered or critically endangered. Additionally 1674 plant species (7.6% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasian Realm
The Australasian realm is one of eight biogeographic realms that is coincident with, but not (by some definitions) the same as, the geographical region of Australasia. The realm includes Australia, the island of New Guinea (comprising Papua New Guinea and the Indonesian province of Papua), and the eastern part of the Indonesian archipelago, including the island of Sulawesi, the Moluccas (the Indonesian provinces of Maluku and North Maluku), and the islands of Lombok, Sumbawa, Sumba, Flores, and Timor, often known as the Lesser Sundas. The Australasian realm also includes several Pacific island groups, including the Bismarck Archipelago, Vanuatu, the Solomon Islands, and New Caledonia. New Zealand and its surrounding islands are a distinctive sub-region of the Australasian realm. The rest of Indonesia is part of the Indomalayan realm. In the classification scheme developed by Miklos Udvardy, New Guinea, New Caledonia, Solomon Islands and New Zealand are placed in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of Madagascar
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology Conservation biology is the study of the conservation of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions. It is an i ... for measuring biodiversity in a particular place and evaluating t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canellales Genera
Canellales is the botanical name for an order of flowering plants, one of the four orders of the magnoliids. It is recognized by the most recent classification of flowering plants, the APG IV system. It is defined to contain two families: Canellaceae and Winteraceae, which comprise 136 species of fragrant trees and shrubs. The Canellaceae are found in tropical America and Africa, and the Winteraceae are part of the Antarctic flora (found in diverse parts of the southern hemisphere). Although the order was defined based on phylogenetic studies, a number of possible synapomorphies have been suggested, relating to the pollen tube, the seeds, the thickness of the integument, and other aspects of the morphology. Until 1999, these two families were not considered to be closely related. Instead the Winteraceae were considered to be a primitive family (due to the structure of the xylem and carpel, a structure which now seems to be derived from xylem and carpels more typical of the angio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Magnoliid Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bubbia
''Zygogynum'' is a genus of plants in the family Winteraceae with 47 species . They are native to areas from Borneo through New Guinea and Queensland to New Caledonia, with 22 species in New Guinea. Initially, the genus was thought to be endemic to New Caledonia, but in 1985 Willem Vink transferred the related genera ''Bubbia'' and ''Exospermum'' to ''Zygogynum'', thus extending the range westward. More recently, new species have been identified and described which again extends the range of the genus such that it now includes Borneo. Description Plants in this genus are evergreen shrubs or small trees, leaves are alternate, undivided, and hairless; they may have a peppery taste. Inflorescences are terminal and have 1–150 flowers. Petals number from 4 to 30, stamens from 3 to 370, carpels from 1 to 50. Distribution and habitat The genus occurs in Borneo, the Maluku Islands, New Guinea, the Bismarck Archipelago, Solomon Islands, Norfolk Island, and the Australian state of Queens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-François Leroy (botanist)
Jean-François Leroy (; 24 September 1729 - 1791) was a French architect. For the Prince of Condé, he worked on the Château of Chantilly, the Palais Bourbon, and the Hôtel de Lassay, where he replaced in 1780. Biography Leroy was born in Chantilly, the son of Jean-Jacques Leroy, building inspector of the Prince of Condé, and Mary-Anne Dunu, daughter of the superintendent of the Château de Chantilly. He entered the service of the prince, following his father. In 1761, he married Toudouze Françoise-Thérèse, daughter of the prince's master of the hunt. He was appointed architect of the Château de Chantilly in 1768, upon the death of his predecessor, Brice Le Chauve. In Chantilly, he built the Château d'Enghien (1769–1770) and the Hameau de Chantilly (1774–1775). He worked with Claude Billard de Bélisard on the Palais Bourbon and the Hôtel de Lassay, and then succeeded him in about 1780. In 1782 he revised Bélisard's plan for the Place du Palais Bourbon. With t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Perrier De La Bâthie
Henri is the French form of the masculine given name Henry, also in Estonian, Finnish, German and Luxembourgish. Bearers of the given name include: People French nobles * Henri I de Montmorency (1534–1614), Marshal and Constable of France * Henri I, Duke of Nemours (1572–1632), the son of Jacques of Savoy and Anna d'Este * Henri II, Duke of Nemours (1625–1659), the seventh Duc de Nemours * Henri, Count of Harcourt (1601–1666), French nobleman * Henri, Dauphin of Viennois (1296–1349), bishop of Metz * Henri de Gondi (other) * Henri de La Tour d'Auvergne, Duke of Bouillon (1555–1623), member of the powerful House of La Tour d'Auvergne * Henri Emmanuel Boileau, baron de Castelnau (1857–1923), French mountain climber * Henri, Grand Duke of Luxembourg (born 1955), the head of state of Luxembourg * Henri de Massue, Earl of Galway (1648–1720), French Huguenot soldier and diplomat, one of the principal commanders of Battle of Almansa * François-Henri de Montm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. 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 of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
