|
Ornithogalum Thyrsoides
''Ornithogalum thyrsoides'' is a bulbous plant species that is endemic to the Cape Province in South Africa. It is also known by the common names of chinkerinchee or chincherinchee, star-of-Bethlehem or wonder-flower. It produces long-lasting flowers prized as cut flowers. Description It is perennial, attaining in height, becoming dormant during winter. It produces half-a-dozen fleshy leaves which die after flowering - the leaves being some in length and 0.5 to 1.5 cm in width, lanceolate, smooth and soft-textured. The flowers are in a compact raceme of 30-50 or in a loose corymb of 5-20 flowers. The flowers are bowl-shaped with green bracts of approximate pedicel length. Flowers are white to creamy-white, with brown or green centres fading with age. They are seen from October to February, and are phototropic (turning towards the sun). The spindle-shaped capsular fruit holds black, shiny seeds of diverse shapes. History and names The plant was first named under the Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacq
Jacq is a surname. *Angèle Jacq (1937–2021), Breton writer *Christian Jacq (born 1947), French author and Egyptologist *Éliane Jacq (1948–2011), French athlete *Grégoire Jacq (born 1992), French tennis player *Peter Le Jacq (born 1954), Maryknoll priest See also *Jacq van den Berg (1916–?), Netherlands Olympic sailor *Jacq Firmin Vogelaar *''Jacq.'', taxonomic author abbreviation of Nikolaus Joseph von Jacquin(1727–1817), Dutch-born scientist *''J.Jacq.'', taxonomic author abbreviation of Joseph Franz von Jacquin (1766–1839), Austrian scientist *Jack (surname) *Jacque, given name and surname *Jacques, given name and surname {{surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linnaean System
Linnaean taxonomy can mean either of two related concepts: # The particular form of biological classification (taxonomy) set up by Carl Linnaeus, as set forth in his ''Systema Naturae'' (1735) and subsequent works. In the taxonomy of Linnaeus there are three kingdoms, divided into ''classes'', and the classes divided into lower ranks in a hierarchical order. # A term for rank-based classification of organisms, in general. That is, taxonomy in the traditional sense of the word: rank-based scientific classification. This term is especially used as opposed to cladistic systematics, which groups organisms into clades. It is attributed to Linnaeus, although he neither invented the concept of ranked classification (it goes back to Plato and Aristotle) nor gave it its present form. In fact, it does not have an exact present form, as "Linnaean taxonomy" as such does not really exist: it is a collective (abstracting) term for what actually are several separate fields, which use similar app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of The Cape Provinces
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 (ecology), 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 for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithogalum
''Ornithogalum'' is a genus of perennial plants mostly native to southern Europe and southern Africa belonging to the family Asparagaceae. Some species are native to other areas such as the Caucasus. Some species are classified as noxious invasive weeds in some portions of North America. Growing from a bulb, species have linear basal leaves and a slender stalk, up to 30 cm tall, bearing clusters of typically white star-shaped flowers, often striped with green. The common name of the genus, star-of-Bethlehem, is based on its star-shaped flowers, after the Star of Bethlehem that appears in the Bible, biblical account of the birth of Jesus. The number of species has varied considerably, depending on authority, from 50 to 300. Description ''Ornithogalum'' species are perennial bulbous geophytes with basal leaves. ''Sensu lato'', the genus has the characteristics of the tribe Ornithogaleae as a whole, since the tribe is monotypic in that sense. ''Sensu stricto'', the genus is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Award Of Garden Merit
The Award of Garden Merit (AGM) is a long-established award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. It includes the full range of cultivated plants, from annuals, biennials and perennials to shrubs and trees. It covers plants grown for specific purposes - such as vegetable crops, fruit, hedging, topiary, groundcover, summer bedding, houseplants, etc. It tests characteristics such as robustness, hardiness, longevity, flowering/fruiting abundance and quality, usefulness, and ease of cultivation. It pays particular attention to a plant's ability to survive and thrive in challenging conditions such as wind and frost. The AGM trophy symbol is widely used in gardening literature as a sign of exceptional quality, and is recognised as such by writers, horticulturalists, nurseries, and everybody in the UK who practises gardening. History The Award of Garden Merit is a mark of quality aw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Horticultural Society
The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (North Yorkshire), Rosemoor (Devon) and Bridgewater (Greater Manchester); flower shows including the Chelsea Flower Show, Hampton Court Palace Flower Show, Tatton Park Flower Show and Cardiff Flower Show; community gardening schemes; Britain in Bloom and a vast educational programme. It also supports training for professional and amateur gardeners. the president was Keith Weed and the director general was Clare Matterson CBE. History Founders The creation of a British horticultural society was suggested by John Wedgwood (son of Josiah Wedgwood) in 1800. His aims were fairly modest: he wanted to hold regular meetings, allowing the society's members the opportunity to present papers on their horticultural activities and discov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thyrse
A thyrse is a type of inflorescence in which the main axis grows indeterminately, and the subaxes (branches) have determinate growth. Gallery File:Syringa Leipzig 2011.jpg, ''Syringa ''Syringa'' is a genus of 12 currently recognized species of flowering plant, flowering woody plants in the olive family or Oleaceae called lilacs. These lilacs are native to woodland and scrub from southeastern Europe to eastern Asia, and wid ...'', lilac File:Banana Maria Sibylla Merian 1705 plate XII.png, The thyrse of a banana plant has side branches which become hands of bananas File:Vitex agnus-castus 002.JPG, The inflorescence of '' Vitex agnus-castus'' has branches, each of which is a thyrse References Plant morphology {{plant-morphology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binomial Nomenclature
In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (often shortened to just "binomial"), a binomen, name, or a scientific name; more informally, it is also called a Latin name. In the International Code of Zoological Nomenclature (ICZN), the system is also called nomenclature, with an "n" before the "al" in "binominal", which is a typographic error, meaning "two-name naming system". The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus ''Homo'' and within this genus to the species ''Hom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temperate Climate
In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout the year and more distinct seasonal changes compared to tropical climates, where such variations are often small; they usually differ only in the amount of precipitation. In temperate climates, not only do latitudinal positions influence temperature changes, but various sea currents, prevailing wind direction, continentality (how large a landmass is) and altitude also shape temperate climates. The Köppen climate classification defines a climate as "temperate" C, when the mean temperature is above but below in the coldest month to account for the persistence of frost. However, some adaptations of Köppen set the minimum at . Continental climates are classified as D and considered to be varieties of temperate climates, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikolaus Joseph Von Jacquin
Nikolaus Joseph Freiherr von Jacquin (16 February 172726 October 1817) was a scientist who studied medicine, chemistry and botany. Biography Born in Leiden in the Netherlands, he studied medicine at Leiden University, then moved first to Paris and afterward to Vienna. In 1752, he studied under Gerard van Swieten in Vienna. Between 1755 and 1759, Jacquin was sent to the West Indies, Central America, Venezuela and New Granada by Francis I, Holy Roman Emperor, Francis I to collect plants for the Schönbrunn Palace, and amassed a large collection of animal, plant and mineral samples. In 1797, Alexander von Humboldt profited from studying these collections and conversing with Jacquin in preparation of his own journey to the Americas. In 1763, Jacquin became professor of chemistry and mineralogy at the Mining Academy (Banská Štiavnica), Bergakademie Schemnitz (now Banská Štiavnica in Slovakia). In 1768, he was appointed Professor of Botany and Chemistry and became director of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phototropic
In biology, phototropism is the growth of an organism in response to a light stimulus. Phototropism is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light contain a hormone called auxin that reacts when phototropism occurs. This causes the plant to have elongated cells on the furthest side from the light. Phototropism is one of the many plant tropisms, or movements, which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism. Negative phototropism is not to be confused with skototropism, which is defined as the growth towards darkness, whereas negative phototropism can refer to either the growth away from a light source or towards the darkness. Most plant shoots exhibit positive phototropism, and rearrange their chloroplasts in the leaves to maximize photosynthetic energy and promote growth.G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thyrsus
In Ancient Greece a ''thyrsus'' () or ''thyrsos'' (; ) was a wand or staff of giant fennel ('' Ferula communis'') covered with ivy vines and leaves, sometimes wound with '' taeniae'' and topped with a pine cone, artichoke, fennel, or by a bunch of vine-leaves and grapes or ivy-leaves and berries, carried during Hellenic festivals and religious ceremonies. The ''thyrsus'' is typically associated with the Greek god Dionysus (and his subsequent Roman equivalent Bacchus) as a symbol of prosperity, fertility, and hedonism. Religious and ceremonial use In Greek religion, the staff was carried by the devotees of Dionysus. Euripides wrote that honey dripped from the ''thyrsos'' staves that the Bacchic maenads carried. The ''thyrsus'' was a sacred instrument at religious rituals and fêtes. The fabulous history of Bacchus relates that he converted the ''thyrsi'' carried by himself and his followers into dangerous weapons, by concealing an iron point in the head of leaves. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
