|
Malva Phoenicea
''Malva phoenicea'', often still known under the synonyms ''Lavatera phoenicea'' and ''Navaea phoenicea'', is a large shrub of the family Malvaceae and tribe Malveae, endemic to the island of Tenerife in the Canary Islands. Taxonomy In 1805 this species was described as ''Lavatera phoenicea'' by Étienne Pierre Ventenat. In 1836 Webb and Berthelot separated this plant from other ''Lavatera'' in a new, then monotypic genus '' Navaea'', named for Alonso de Nava y Grimón, (1757-1832), founder of the botanical garden in Puerto de la Cruz, Tenerife ( Jardín de Aclimatación de la Orotava). The reason for including this species in a separate genus was the presence of nectaries in the base of each petal, which is unique in the tribe Malveae. Published studies using molecular markers (chloroplast and ITS sequences) support this separation, as phylogenetic trees show ''M. phoenicea'' in a basal position in relation to the rest of ''Lavatera-Malva'' complex, which would indicate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vent
Vent or vents may refer to: Science and technology Biology *Vent, the cloaca region of an animal *Vent DNA polymerase, a thermostable DNA polymerase Geology *Hydrothermal vent, a fissure in a planet's surface from which geothermally heated water issues *Volcano, a point where magma emerges from the Earth's surface and becomes lava Moving gases *Vent (submarine), a valve on a submarine's ballast tanks *Automatic bleeding valve, a plumbing valve used to automatically release trapped air from a heating system *Drain-waste-vent system or plumbing drainage venting, pipes leading from fixtures to the outdoors *Duct (flow), used to deliver and remove air *Flue, a duct, pipe, or chimney for conveying exhaust gases from a furnace or water heater *Gas venting, a safe vent in the hydrocarbon and chemical industries *Medical ventilator, mechanical breathing machine *Touch hole, a vent on a cannon *Vent shaft or ventilation shaft People *Vents (musician), Australian hip hop MC *Vents Feldman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Transcribed Spacer
Internal transcribed spacer (ITS) is the spacer DNA situated between the small-subunit ribosomal RNA (rRNA) and large-subunit rRNA genes in the chromosome or the corresponding transcribed region in the polycistronic rRNA precursor transcript. ITS across life domains In bacteria and archaea, there is a single ITS, located between the 16S and 23S rRNA genes. Conversely, there are two ITSs in eukaryotes: ITS1 is located between 18S and 5.8S rRNA genes, while ITS2 is between 5.8S and 28S (in opisthokonts, or 25S in plants) rRNA genes. ITS1 corresponds to the ITS in bacteria and archaea, while ITS2 originated as an insertion that interrupted the ancestral 23S rRNA gene. Organization In bacteria and archaea, the ITS occurs in one to several copies, as do the flanking 16S and 23S genes. When there are multiple copies, these do not occur adjacent to one another. Rather, they occur in discrete locations in the circular chromosome. It is not uncommon in bacteria to carry tRN ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecosystem
An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and microbes. Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influenced by the ecosystem. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrophularia
The genus ''Scrophularia'' of the family Scrophulariaceae comprises about 200 species of herbaceous flowering plants commonly known as figworts. Species of ''Scrophularia'' all share square stems, opposite leaves and open two-lipped flowers forming clusters at the end of their stems. The genus is found throughout the Northern Hemisphere. ''Scrophularia'' species are used as food plants by the larvae of some Lepidoptera species including ''Phymatopus hectoides''. Some species in this genus are known to contain potentially useful substances, such as iridoids, and several ''Scrophularia'' species, such as the Ningpo figwort (''S. ningpoensis''), have been used by herbal medicine practitioners around the world. The name ''Scrophularia'' comes from scrofula, a form of tuberculosis Tuberculosis (TB) is an infectious disease usually caused by '' Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echium
''Echium'' is a genus of approximately 70 species and several subspecies of flowering plant in the family Boraginaceae. Species of ''Echium'' are native to North Africa, mainland Europe to Central Asia, and the Macaronesian islands where the genus reaches its maximum diversity. 29 species of ''Echium'' are endemic to the Canary, Madeira, and Cape Verde archipelagos. The continental species are herbaceous, whereas all but two of the endemic species of the Macaronesian islands are woody perennial shrubs. Etymology The Latin genus name ''echium'' comes from the Greek ''echion'' referring to Echium plantagineum and itself deriving from ''echis'' "viper"; the Greek term dates to Dioscorides who noted a resemblance between the shape of the nutlets to a viper’s head. The genus Echium was published by Carl Linnaeus in 1753. Cultivation and uses Many species are used as ornamental and garden plants and may be found in suitable climates throughout the world. In Crete ''Echium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canarina
''Canarina'' is a genus of flowering plants within the family Campanulaceae. They are herbaceous perennial vines with bell-shaped flowers. The best known species is ''Canarina canariensis'' from the laurel forests of the Canary Islands which is grown as an ornamental plant. ''C. canariensis'' is one of a group of unrelated Canarian plants that appear to be adapted for bird pollination, including the members of the genera ''Isoplexis'' and '' Lotus''. It was once thought that the original pollinators of these plants were sunbirds which had become extinct on the Canary Islands, explaining why some of these species are rare and considered endangered (Vogel 1954; Vogel et al. 1984; Olesen 1985; Valido et al. 2004). However more recent work has shown that these plants are adequately pollinated by non-specialist flower visiting birds, particularly the Canary Islands chiffchaff (''Phylloscopus canariensis'') and the Canary Island spectacled warbler (''Sylvia conspicillata orbitalis'') ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isoplexis
{{Italic title ''Isoplexis'' is a section of four species of flowering plants within the genus ''Digitalis'' in the plantain family Plantaginaceae. The species of section ''Isoplexis'' differ from other plants in the genus ''Digitalis'' in that their monosymmetric (sometimes called zygomorphic) flowers have a distinctive large upper lip rather than large lower lip and the species are endemic to the Canary Islands (the species ''D. canariensis'', ''D. chalcantha'', and ''D. isabelliana'') and Madeira (''D. sceptrum''). Two ''Isoplexis'' species, ''D. canariensis'' and ''D. sceptrum'', were first described by Carl Linnaeus in 1753 as part of the genus ''Digitalis''. Since then the section has undergone several changes, the addition of two more species and more importantly being moved to a separate genus, under the genus name of ''Isoplexis'' or sometimes ''Callianassa'', back and forth many times (Lindley 1821, Loudon 1829, Bentham 1835, Webb 1845, Wetstein 1891, Himmelbaeur and Z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotus (genus)
''Lotus'', a latinization of Greek '' lōtos'' (), is a genus of flowering plants that includes most bird's-foot trefoils (also known as bacon-and-eggs) and deervetches and contains many dozens of species distributed worldwide. Depending on the taxonomic authority, roughly between 70 and 150 are accepted. ''Lotus'' is a genus of legumes and its members are adapted to a wide range of habitats, from coastal environments to high altitudes. The genus ''Lotus'' is currently undergoing extensive taxonomic revision. Species native to the Americas have been moved into other genera, such as ''Acmispon'' and '' Hosackia'', as in the second edition of ''The Jepson Manual''. The aquatic plant commonly known as the Indian or sacred lotus is ''Nelumbo nucifera'', a species not closely related to ''Lotus''. Description Most species have leaves with five leaflets; two of these are at the extreme base of the leaf, with the other three at the tip of a naked midrib. This gives the appearance o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Musschia
''Musschia'' is a genus of plants in the family Campanulaceae. It contains three known species, all endemic to the Madeira Archipelago in the eastern North Atlantic, part of the Republic of Portugal Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of .... The genus is named in honour of Jean-Henri Mussche (1765-1834), the head gardener of the botanical garden in Ghent. * '' Musschia aurea'' (L.f.) Dumort. - Madeira Island * '' Musschia isambertoi'' M.Seq., R.Jardim, Magda Silva & L.Carvalho - Desertas Islands * '' Musschia wollastonii'' Lowe - Madeira Island Notes References {{Taxonbar, from=Q537848 Campanuloideae Campanulaceae genera Endemic flora of Madeira ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macaronesian
Macaronesia (Portuguese: ''Macaronésia,'' Spanish: ''Macaronesia'') is a collection of four volcanic archipelagos in the North Atlantic, off the coasts of Africa and Europe. Each archipelago is made up of a number of Atlantic oceanic islands, which are formed by seamounts on the ocean floor whose peaks have risen above the ocean's surface. Some of the Macaronesian islands belong to Portugal, some belong to Spain, and the rest belong to Cape Verde. Politically, the islands belonging to Portugal and Spain are part of the European Union. Geologically, Macaronesia is part of the African tectonic plate. Some of its islands – the Azores – are situated along the edge of that plate at the point where it abuts the Eurasian and North American plates. In one biogeographical system, the Cape Verde archipelago is in the Afrotropical realm while the other three archipelagos are in the Palearctic realm. According to the European Environment Agency, the three European archipelagos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollination Syndrome
Pollination syndromes are suites of flower traits that have evolved in response to natural selection imposed by different pollen vectors, which can be abiotic (wind and water) or biotic, such as birds, bees, flies, and so forth through a process called pollinator-mediated selection. These traits include flower shape, size, colour, odour, reward type and amount, nectar composition, timing of flowering, etc. For example, tubular red flowers with copious nectar often attract birds; foul smelling flowers attract carrion flies or beetles, etc. The "classical" pollination syndromes were first studied in the 19th century by the Italian botanist Federico Delpino. Although they are useful in understanding of plant-pollinator interactions, sometimes the pollinator of a plant species cannot be accurately predicted from the pollination syndrome alone, and caution must be exerted in making assumptions. The naturalist Charles Darwin surmised that the flower of the orchid ''Angraecum sesquipeda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
