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Wahlenbergia Roxburghii
''Wahlenbergia roxburghii'', the Roxburgh bellflower or dwarf cabbage tree, is an extinct member of a group of four species of ''Wahlenbergia'' once known from the island of Saint Helena, in the South Atlantic Ocean. It was last seen by naturalist John Charles Melliss in 1872. William Roxburgh recorded it in the thick forests on the south face of Diana's Peak. De Candolle notes it in dense woods around Diana's Peak and Halley's Mount. Burchell notes it 'On Sandy Bay ridge near Taylor's. Flowering: probably August to March. It was exceedingly rare in Meliss's time, it is not in his book as he had not found it. It was probably the increase of Phormium tenax planting on the ridge that pushed ''Wahlenbergia roxburghii'' into final extinction. It is an example of one of the early extinctions of Saint Helena plants as a result of human activity, with a history similar to that of the stringwood ('' Acalypha rubrinervis''), (see List of extinct plants). See also *Flora of St Helena The fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alphonse Pyrame De Candolle
Alphonse Louis Pierre Pyramus (or Pyrame) de Candolle (28 October 18064 April 1893) was a French-Swiss botanist, the son of the Swiss botanist Augustin Pyramus de Candolle. Biography De Candolle, son of Augustin Pyramus de Candolle, first devoted himself to the study of law, but gradually drifted to botany and finally succeeded to his father's chair at the University of Geneva. He published a number of botanical works, including continuations of the ''Prodromus'' in collaboration with his son, Casimir de Candolle. Among his other contributions is the formulation, based on his father's work for the ''Prodromus'', of the first Laws of Botanical Nomenclature, which was adopted by the International Botanical Congress in 1867, and was the prototype of the current ICN. He was elected a foreign member of the Royal Swedish Academy of Sciences in 1859 and was awarded the Linnean Medal of the Linnean Society of London in 1889. He was elected a foreign member of the Royal Netherlands Acad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wahlenbergia
''Wahlenbergia'' is a genus of around 260 species of flowering plants in the family Campanulaceae. Plants in this genus are perennial or annual herbs with simple leaves and blue to purple bell-shaped flowers, usually with five petals lobes. Species of ''Wahlenbergia'' are found on all continents except North America, and on some isolated islands, but the greatest diversity occurs in the Southern Hemisphere. Description Plants in the genus ''Wahlenbergia'' are annual or perennial herbs, rarely shrubs, and sometimes have rhizomes. The stems are erect, circular in cross section and have simple leaves. The leaves decrease in size up the stem and usually have small scattered teeth on their edges. The flowers are borne on the end of the stems, either singly or arranged in a cyme. There are five sepals that remain until the fruiting stage. The petals are blue to purple and are joined at their base to form a bell-shaped or funnel-shaped tube with five lobes. There are usually five stame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Helena
Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constituent parts of the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha. Saint Helena measures about and has a population of 4,439 per the 2021 census. It was named after Helena, mother of Constantine I. It is one of the most remote islands in the world and was uninhabited when discovered by the Portuguese enroute to the Indian subcontinent in 1502. For about four centuries the island was an important stopover for ships from Europe to Asia and back, while sailing around the African continent, until the opening of the Suez canal. St Helena is the United Kingdom's second-oldest overseas territory after Bermuda. Saint Helena is known for being the site of Napoleon's second exile, following his final defeat in 1815. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Charles Melliss
John Charles Melliss (23 January 1835 – 23 August 1910) was a British engineer and amateur naturalist. Details He was born on the island of St Helena in the South Atlantic Ocean. His father, Lieutenant G.W. Melliss, was an officer of the St Helena Artillery. After training as an engineer, and serving as an officer in the Royal Engineers, he was appointed as government surveyor in St Helena from 1860 to 1871. In 1871, because of government cutbacks, he was made redundant and returned to London, where he subsequently formed the firm of J.C. Melliss and Co. In 1875, he published the book for which he is best known: ''St. Helena: A Physical, Historical and Topographical Description of the Island, Including the Geology, Fauna, Flora and Meteorology''. It was illustrated by his wife, Alice Elizabeth Louisa, née Stace, who was credited on the title page as "Mrs. J. C. Melliss", and on plates as "A. Melliss". To commemorate the book's centenary in 1975, the St. Helena Post Office p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Roxburgh
William Roxburgh FRSE FRCPE Linnean Society of London, FLS (3/29 June 1751 – 18 February 1815) was a Scottish people, Scottish surgeon and botanist who worked extensively in India, describing species and working on economic botany. He is known as the founding father of Indian botany. He published numerous works on Indian botany, illustrated by careful drawings made by Indian artists and accompanied by taxonomic descriptions of many plant species. Apart from the numerous species that he named, many species were named in his honour by his collaborators. Early life He was born on 3 June 1751 on the Underwood estate near Craigie, South Ayrshire, Craigie in Ayrshire and christened on 29 June 1751 at the nearby church at Symington, South Ayrshire, Symington. His father may have worked in the Underwood estate or he may have been the illegitimate son of a well-connected family. His early education was at Underwood parish school perhaps also with some time at Symington parish school, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diana's Peak
Diana's Peak is the highest point, at , on the island of Saint Helena, a British overseas territory in the South Atlantic Ocean. It is of volcanic origin. The mountain and its surroundings with a total area of 81 ha were proclaimed a national park in March 1996, the first on the island. It is a preserve of several endangered endemic species, including tree fern, he cabbage and black cabbage trees, and whitewood. The park contains walking paths connecting the peaks - Mt. Actaeon (814m), Diana's Peak and Cuckold's Point (815m). The two shorter peaks are topped by large Norfolk pines. On the northern slopes there is a nursery for endemic species. The peak is located at the tripoint where the districts of Sandy Bay (southwest), Levelwood (east) and Longwood (north) meet. The closest settlements are Bamboo Hedge (the main settlement of Sandy Bay District), Hutt's Gate (in Longwood District) and Levelwood Village. Gallery See also *List of mountains and hills of Saint He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phormium Tenax
''Phormium tenax'' (called flax in New Zealand English; in Māori; New Zealand flax outside New Zealand; and New Zealand hemp in historical nautical contexts) is an evergreen perennial plant native to New Zealand and Norfolk Island that is an important fibre plant and a popular ornamental plant.Roger Holmes and Lance Walheim. 2005. ''California Home Landscaping'', Creative Homeowner Press The plant grows as a clump of long, straplike leaves, up to two metres long, from which arises a much taller flowering shoot, with dramatic yellow or red flowers. The fibre has been widely used since the arrival of Māori to New Zealand, originally in Māori traditional textiles and also in rope and sail making after the arrival of Europeans until at least WWII. It is an invasive species in some of the Pacific Islands and in Australia. The blades of the plant contain cucurbitacins, which are poisonous to some animals, and some of them are among the bitterest tastes to humans. Etymology The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acalypha Rubrinervis
''Acalypha rubrinervis'' (string tree or stringwood) is an extinct plant in the spurge family (Euphorbiaceae), from the island of Saint Helena in the South Atlantic Ocean. It was called string tree on account of the thin pendulous inflorescences which resembled red strings. Disturbance following human settlement on the island destroyed its habitat and it was last seen in the 19th century. It is thus one of a number of island plants to have been driven to extinction by human activity (see List of extinct plants). The genus to which it belongs, ''Acalypha'', is a large one and includes island endemics as well as weeds and ornamentals. ''A. rubrinervis'' was a shrub or thicket growing on the central ridge of St Helena above 600 m elevation. ''Acalypha rubrinervis'' is a shrub or small tree, 1–2 m. Branches with warty leaf-scars. Leaves ovate to broadly triangular-ovate, entire to somewhat wavy-toothed, with 3 veins from the base of the leaf blade 5-7 x 3–5 cm, leaf stalk 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of St Helena
The flora of Saint Helena, an isolated island in the South Atlantic Ocean, is exceptional in its high level of endemism and the severe threats facing the survival of the flora. In phytogeography, it is in the phytochorion St. Helena and Ascension Region of the African Subkingdom, in the Paleotropical Kingdom. Endemic and introduced flora The endemic plants of Saint Helena include many notable Cabbage Tree or, "insular arborescent Asteraceae", members of the daisy family which have evolved a shrubby or tree-like habit on islands. Other notable endemics include the closely related St Helena redwood ('' Trochetiopsis erythroxylon'') and St Helena dwarf ebony ('' Trochetiopsis ebenus''). These are unrelated to the redwood trees of California or to the ebony trees of commerce, being instead in the Mallow family (Malvaceae). Vegetation Today there are three major vegetation zones: the tree-fern thicket of the highest parts of the central ridge; the pastures of middle elevations and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quentin Cronk
Quentin is a French male given name from the Latin first name ''Quintinus'', diminutive form of '' Quintus'', that means "the fifth". Albert Dauzat, ''Noms et prénoms de France'', Librairie Larousse 1980, édition revue et commentée par Marie-Thérèse Morlet. p. 502b and 503a. People *Saint Quentin (died c. 287) *Quentin Anderson (1912–2003), American literary critic and cultural historian *Quentin Bajac (born 1965), French curator and historian of photography *Quentin Bataillon (born 1993), French politician *Quentin Blake (born 1932), illustrator, famous for his work in Roald Dahl books *Quentin Bryce (born 1942), the 25th Governor-General of Australia * Quentin N. Burdick (1908-1992), American lawyer and senator from North Dakota *Quentin Leo Cook, a.k.a. Fatboy Slim, British musician *Quentin Cooper (born 1961) a science journalist, and broadcaster. *Quentin Crisp (1908-1999), author and social critic * Quentin Davies, Baron Davies of Stamford (born 1944), British polit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Plants
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Saint Helena
The flora of Saint Helena, an isolated island in the South Atlantic Ocean, is exceptional in its high level of endemism and the severe threats facing the survival of the flora. In phytogeography, it is in the phytochorion St. Helena and Ascension Region of the African Subkingdom, in the Paleotropical Kingdom. Endemic and introduced flora The endemic plants of Saint Helena include many notable Cabbage Tree or, "insular arborescent Asteraceae", members of the daisy family which have evolved a shrubby or tree-like habit on islands. Other notable endemics include the closely related St Helena redwood (''Trochetiopsis erythroxylon'') and St Helena dwarf ebony (''Trochetiopsis ebenus''). These are unrelated to the redwood trees of California or to the ebony trees of commerce, being instead in the Mallow family (Malvaceae). Vegetation Today there are three major vegetation zones: the tree-fern thicket of the highest parts of the central ridge; the pastures of middle elevations and the d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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