|
Trochetiopsis Ebenus
''Trochetiopsis ebenus'', the dwarf ebony or Saint Helena ebony, is a species of flowering plant that is endemic to the island of Saint Helena in the southern Atlantic Ocean. It is not related to the ebony of commerce (''Diospyros'' spp.), but is instead a member of the mallow family, Malvaceae. Saint Helena ebony is now critically endangered in the wild, being reduced to two wild individuals on a cliff, but old roots are sometimes found washed out of eroding slopes (relicts of its former abundance). These are collected on the island a used for inlay work, an important craft on Saint Helena. A related species, '' Trochetiopsis melanoxylon'' is now completely extinct. It can be propagated from cuttings and many island gardens now boast a fine ebony bush. It is related to the Saint Helena redwood (''Trochetiopsis erythroxylon'') and a hybrid between them (''Trochetiopsis × benjamini'') is also now often planted. ''Trochetiopsis ebenus'' has staminodes that are dark maroon or "bl ... [...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] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ... [...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] |
Diospyros
''Diospyros'' is a genus of over 700 species of deciduous and evergreen trees and shrubs. The majority are native to the tropics, with only a few species extending into temperate regions. Individual species valued for their hard, heavy, dark timber, are commonly known as ebony trees, while others are valued for their fruit and known as persimmon trees. Some are useful as ornamentals and many are of local ecological importance. Species of this genus are generally dioecious, with separate male and female plants. Taxonomy and etymology The generic name ''Diospyros'' comes from a Latin name for the Caucasian persimmon ('' D. lotus''), derived from the Greek διόσπυρος : dióspyros, from ''diós'' () and ''pyrós'' (). The Greek name literally means "Zeus's wheat" but more generally intends "divine food" or "divine fruit". Muddled translations sometimes give rise to curious and inappropriate interpretations such as " God's pear" and " Jove's fire". The genus is a large one a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malvaceae
Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importance include okra, cotton, cacao and durian. There are also some genera containing familiar ornamentals, such as ''Alcea'' (hollyhock), ''Malva'' (mallow), and ''Tilia'' (lime or linden tree). The largest genera in terms of number of species include ''Hibiscus'' (300 species), ''Sterculia'' (250 species), ''Dombeya'' (250 species), '' Pavonia'' (200 species) and '' Sida'' (200 species). Taxonomy and nomenclature The circumscription of the Malvaceae is controversial. The traditional Malvaceae '' sensu stricto'' comprise a very homogeneous and cladistically monophyletic group. Another major circumscription, Malvaceae ''sensu lato'', has been more recently defined on the basis that genetics studies have shown the commonly recognised families Bombacaceae, Tiliaceae, and Sterculiaceae, which have always been considered closely allie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochetiopsis Melanoxylon
''Trochetiopsis melanoxylon'', the dwarf ebony or St Helena ebony, of the island of Saint Helena is related to ''Trochetiopsis ebenus'' but is now extinct. It differed from ''T. ebenus'' by having much smaller flowers, sepals hairless on their interior surfaces and leaves densely hairy on both surfaces (''T. ebenus'' is densely hairy only on the lower surfaces of the leaves). It was last seen when it was collected by Banks and Solander in 1771 on Cook's first voyage. It may once have covered many of the driest slopes of Saint Helena, but appears to have been one of the first casualties of the introduction of the domestic goat by the Portuguese sailors soon after the discovery of Saint Helena in 1502. See also *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 R ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochetiopsis Erythroxylon
''Trochetiopsis erythroxylon'', the Saint Helena redwood, is a species of plant, now extinct in the wild. It was formerly abundant enough in the upland parts of the island of Saint Helena for early settlers in the 17th century to use the timber to make their homes. It became extinct in the 1950's due to deforestation as its habitat was cleared to make way for pasture, timber and fuel. The St. Helena Redwood was used as an early example of ex situ conservation when the governor of St. Helena obtained a couple seedlings and planted them in his garden. It now exists in cultivation, although cultivated stock is weak. This species has pendant flowers, petals that turn pink with age, and white staminodes. Saint Helena redwood is completely unrelated to the redwood tree of California and other trees called redwood. It is, however, in the same genus as the Saint Helena ebony ('' Trochetiopsis ebenus'') and a hybrid between them (''Trochetiopsis × benjamini'') is now often planted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staminodes
In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen.Jackson, Benjamin, Daydon; ''A Glossary of Botanic Terms with their Derivation and Accent''; Published by Gerald Duckworth & Co. London, 4th ed 1928 Staminodes are frequently inconspicuous and stamen-like, usually occurring at the inner whorl of the flower, but are also sometimes long enough to protrude from the corolla. Sometimes, the staminodes are modified to produce nectar, as in the Witch Hazel ''( Hamamelis)''.jin lu mei shu. Hamamelis Linnaeus, Sp. Pl. 1: 124. 1753. Flora of China 9: 32. 2003 Staminodes can be a critical characteristic for differentiating between species, for instance in the orchid genus ''Paphiopedilum'', and among the penstemons. In the case of Cannas, the petals are inconsequential and the staminodes are refined into eye-catching petal-like replacements. A spectacular example of staminode is given by ''Couroupita guianensis'', a ... [...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] |
Cambridge University Botanic Garden
The Cambridge University Botanic Garden is a botanical garden located in Cambridge, England, associated with the university Department of Plant Sciences (formerly Botany School). It lies between Trumpington Road to the west, Bateman Street to the north and Hills Road to the east. The garden covers an area of 16 hectares (40 acres). The site is almost entirely on level ground and in addition to its scientific value, the garden is highly rated by gardening enthusiasts. It holds a plant collection of over 8,000 plant species from all over the world to facilitate teaching and research. The garden was created for the University of Cambridge in 1831 by Professor John Stevens Henslow (Charles Darwin's mentor) and was opened to the public in 1846. The third-highest temperature recorded in the UK, 38.7 °C (101.7 °F), was recorded on 25 July 2019 at the garden. History Walkerian Garden After several unsuccessful attempts during the 16th, 17th, and early 18th centuries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochetiopsis
The flowering plant genus ''Trochetiopsis'' consists of two extant and one extinct species endemic to the island of Saint Helena (South Atlantic Ocean). They were formerly placed in the family Sterculiaceae, but this is included in the expanded Malvaceae in the APG and most subsequent systematics. There is evidence from fossil pollen that the ''Trochetiopsis'' lineage has been on Saint Helena since the late Miocene (some 9.5 million years). Description The species of this genus were formerly included in the genus ''Trochetia'', but were separated by Marais in 1981 on the basis of geography and morphological characters. Unlike in ''Trochetia'', the ''Trochetiopsis'' flowers have only five stamens, and the sepals generally have appressed sericeous indumentum on their interior faces (although one species, ''T. melanoxylon'', lacks this last character). The wood of all the species is attractively coloured and is used in island inlay work. Phylogeny ''Trochetiopsis'' is closel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.JPG "Click for more on -> Flowering Plant")
