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Corybas Trilobus
''Corybas trilobus'' is a species of terrestrial orchid endemic to New Zealand. It is part of the ''C. trilobus'' aggregate, whose members are characterized by a funnel or dish-shaped labellum and an often heart or kidney-shaped solitary leaf. Description ''Corybas trilobus'' is a variable terrestrial, perennial herb whose boundaries continue to be further delineated. The following description adheres to its 2016 delineation ''sensu stricto.'' ''C. trilobus'' has a single reniform (kidney-shaped) leaf born on a petiole that is 13–24 mm long. The leaf itself is at least 18 mm in diameter and is longer than it is wide; its apex is broad but ends ends with a sudden sharp point, and its base is distinctly two-lobed. The single flower is held on a peduncle with a small, slender floral bract; the ovary is pale yellow-green and ribbed. The flower is characteristically mostly pale-colored except for its labellum margins. The dorsal sepal arches over the labellum and is broadly ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hook
A hook is a tool consisting of a length of material, typically metal, that contains a portion that is curved or indented, such that it can be used to grab onto, connect, or otherwise attach itself onto another object. In a number of uses, one end of the hook is pointed, so that this end can pierce another material, which is then held by the curved or indented portion. Some kinds of hooks, particularly fish hooks, also have a barb, a backwards-pointed projection near the pointed end of the hook to ensure that once the hook is embedded in its target, it can not easily be removed. Variations * Bagging hook, a large sickle or reaping hook used for harvesting grain * Bondage hook, used in sexual bondage play * Cabin hook, a hooked bar that engages into an eye screw, used on doors * Cap hook, hat ornament of the 15th and 16th centuries * Cargo hook (helicopter), different types of hook systems for helicopters * Crochet hook, used for crocheting thread or yarn * Drapery hook, for ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Dalton Hooker
Sir Joseph Dalton Hooker (30 June 1817 – 10 December 1911) was a British botanist and explorer in the 19th century. He was a founder of geographical botany and Charles Darwin's closest friend. For twenty years he served as director of the Royal Botanical Gardens, Kew, succeeding his father, William Jackson Hooker, and was awarded the highest honours of British science. Biography Early years Hooker was born in Halesworth, Suffolk, England. He was the second son of the famous botanist Sir William Jackson Hooker, Regius Professor of Botany, and Maria Sarah Turner, eldest daughter of the banker Dawson Turner and sister-in-law of Francis Palgrave. From age seven, Hooker attended his father's lectures at Glasgow University, taking an early interest in plant distribution and the voyages of explorers like Captain James Cook. He was educated at the Glasgow High School and went on to study medicine at Glasgow University, graduating M.D. in 1839. This degree qualified him for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus
''Nothofagus'', also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America (Chile, Argentina) and Australasia (east and southeast Australia, New Zealand, New Guinea, and New Caledonia). The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules, and pollen, with fossils extending into the late Cretaceous period and occurring in Australia, New Zealand, Antarctica, and South America. Description The leaves are toothed or entire, evergreen or deciduous. The fruit is a small, flattened or triangular nut, borne in cupules containing one to seven nuts. Reproduction Many individual trees are extremely old, and at one time, some populations were thought to be unable to reproduce in present-day conditions where they were growing, except by suckering ( clonal rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maximum Parsimony (phylogenetics)
In phylogenetics, maximum parsimony is an optimality criterion under which the phylogenetic tree that minimizes the total number of character-state changes (or miminizes the cost of differentially weighted character-state changes) is preferred. Under the maximum-parsimony criterion, the optimal tree will minimize the amount of homoplasy (i.e., convergent evolution, parallel evolution, and evolutionary reversals). In other words, under this criterion, the shortest possible tree that explains the data is considered best. Some of the basic ideas behind maximum parsimony were presented by James S. Farris in 1970 and Walter M. Fitch in 1971. Maximum parsimony is an intuitive and simple criterion, and it is popular for this reason. However, although it is easy to ''score'' a phylogenetic tree (by counting the number of character-state changes), there is no algorithm to quickly ''generate'' the most-parsimonious tree. Instead, the most-parsimonious tree must be sought in "tree space" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayesian Inference
Bayesian inference is a method of statistical inference in which Bayes' theorem is used to update the probability for a hypothesis as more evidence or information becomes available. Bayesian inference is an important technique in statistics, and especially in mathematical statistics. Bayesian updating is particularly important in the dynamic analysis of a sequence of data. Bayesian inference has found application in a wide range of activities, including science, engineering, philosophy, medicine, sport, and law. In the philosophy of decision theory, Bayesian inference is closely related to subjective probability, often called "Bayesian probability". Introduction to Bayes' rule Formal explanation Bayesian inference derives the posterior probability as a consequence of two antecedents: a prior probability and a "likelihood function" derived from a statistical model for the observed data. Bayesian inference computes the posterior probability according to Bayes' theorem: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corybas Walliae
''Corybas walliae'', commonly known as Zeller's spider orchid, is a species of orchid endemic to New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count .... References External links * * {{Taxonbar, from=Q42734629 walliae Flora of New Zealand Plants described in 2016 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corybas Vitreus
''Corybas vitreus'' is a species of orchid endemic to New Zealand, and first described in 2016 by Carlos Adolfo Lehnebach Carlos Adolfo Lehnebach is a New Zealand botanist. He is employed as a botany curator at the Museum of New Zealand Te Papa Tongarewa. Lehnebach studies New Zealand orchids. As of January 2018, he has described seven new species of orchid and two s .... Description ''C. vitreus'' is a terrestrial, seasonal orchid, with solitary heart-shaped leaves having entire margins. The flowers, too, are solitary and their central part is mostly translucent. It has a height of 14 to 30 mm when flowering. It is very like '' C. walliae'' but differs in having a translucent labellum lamina with a dark maroon to purple band along the lateral margin. It differs from '' C. trilobus'' by having a broadly ovate flower. It flowers September to October and fruits from November to early January. Distribution and habitat It is endemic to New Zealand and found on both the North (in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corybas Sanctigeorgianus
''Corybas sanctigeorgianus'' is a species of terrestrial orchid endemic to the North Island of New Zealand. It is part of the '' C. trilobus'' aggregate, whose members are characterized by a funnel or dish-shaped labellum and an often heart or kidney-shaped solitary leaf. Description ''Corybas sanctigeorgianus'' is a terrestrial, perennial herb with a solitary reniform (kidney-shaped) to cordiform (heart-shaped) leaf born on a petiole that is 9.8–12.7 mm long. The leaf itself is 10.0–13.2 mm × 14.0–19.0 mm; its apex ends in a sharp point. The single flower is held on a small peduncle with a short floral bract that is oval-shaped when flattened. The dorsal sepal is green, sometimes splotched with maroon, and arches over the labellum and is broadly rounded at the apex, although sometimes it is mucronate. The dorsal sepal is characteristically longer than the labellum. The lateral sepals are long and filiform (thread-like); they are crystalline white with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corybas Obscurus
''Corybas obscurus'' is a species of terrestrial orchid endemic to New Zealand. It has a solitary heart-shaped leaf and a deep crimson or nearly black flower and is part of the '' Corybas trilobus'' aggregate. Description ''Corybas obscurus'' is a terrestrial, perennial herb with a single reniform (kidney-shaped) or cordiform (heart-shaped) leaf born on a petiole that is 5.1–40.8 mm long. The leaf itself is 5.8–18.2 × 9.6–26.7 mm and has a mucronate apex. The single flower is held on a peduncle with a small floral bract. The dorsal sepal arches over the labellum and is broad at the apex; it ranges from dark crimson to nearly black. The lateral sepals range from crimson to dark red and are filiform (thread-like), between 11.7 and 20.6 mm long. The petals resemble the lateral sepals but are longer, between 27.3 and 57.2 mm long. The labellum, around 10 mm wide, is auriculate at the base and is strongly curved downwards. It folds inwards and form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corybas Confusus
''Corybas confusus'', commonly known as the spider orchid is a species of terrestrial orchid endemic to New Zealand. It has a single heart-shaped leaf and a single dark green or light green flower with reddish maroon streaks and blotches and long, thread-like lateral sepals and petals. It grows in highland areas on both main islands. Description ''Corybas confusus'' is a terrestrial, perennial, deciduous, herb with a single heart-shaped to almost round leaf long and with a petiole a further long. There is a single erect, dark green or light green flower with reddish maroon streaks and blotches on a peduncle long and reaching to a height of . The largest part of the flower is the dorsal sepal which arches and partly forms a hood over the labellum. The lateral sepals are thread-like, whitish or reddish and long. The petals are similar to the lateral sepals but . The labellum is dark red with a pale green to yellowish centre, about wide and folded lengthwise forming a gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlos Adolfo Lehnebach
Carlos Adolfo Lehnebach is a New Zealand botanist. He is employed as a botany curator at the Museum of New Zealand Te Papa Tongarewa. Lehnebach studies New Zealand orchids. As of January 2018, he has described seven new species of orchid and two species of forget-me-not (''Myosotis'') indigenous to New Zealand. Career Carlos Lehnebach has described multiple new plant species in the Orchidaceae and Boraginaceae. These include the following: ''Myosotis'' (Boraginaceae) * ''Myosotis chaffeyorum'' Lehnebach * ''Myosotis mooreana'' Lehnebach ''Corybas (plant), Corybas'' (Orchidaceae) * ''Corybas confusus'' Lehnebach * ''Corybas obscurus'' Lehnebach * ''Corybas sanctigeorgianus'' Lehnebach * ''Corybas vitreus'' Lehnebach * ''Corybas walliae'' Lehnebach ''Gastrodia'' (Orchidaceae) * ''Gastrodia cooperae'' Lehnebach & J.R.Rolfe * ''Gastrodia molloyi'' Lehnebach & J.R.Rolfe Publications * * * * References External links * * Lehnebach interviewed on RNZ Our Changin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Gustav Reichenbach
Heinrich Gustav Reichenbach (Dresden, 3 January 1823 – Hamburg, 6 May 1889) was a botanist and the foremost German orchidologist of the 19th century. His father Heinrich Gottlieb Ludwig Reichenbach (author of ''Icones Florae Germanicae et Helveticae'') was also a well-known botanist. Biography He started his study of orchids at the age of 18 and assisted his father in the writing of ''Icones''. He became a Doctor in Botany with his work on the pollen of orchids (see ‘Selected Works’). Soon after his graduation, Reichenbach was appointed to the post of extraordinary professor of botany at the Leipzig in 1855. He then became director of the botanical gardens at the Hamburg University (1863-1889). At that time, thousands of newly discovered orchids were being sent back to Europe. He was responsible for identifying, describing, classifying. Reichenbach named and recorded many of these new discoveries. He probably was not the easiest of personalities, and used to boast about h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
