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Orchis Pallens
''Orchis pallens'', the pale orchid or pale-flowered orchid, is a perennial herbaceous plant belonging to the genus ''Orchis'' of the family Orchidaceae. It is found in most of Europe ranging from Spain across to the Caucasus. It blooms in spring with pale yellow flowers. Description ''Orchis pallens'' is the least variable of the ''Orchis'' genus. It has a tuber, which is round,John Wilkes (editor) or oval in shape. They are long and in diameter, underneath the tuber are numerous secondary roots which are long. Above the tuber, it has 4-6 leaves, arranged in basal rosette. The leaves are large, long and wide. They are sometimes so long that they cover the flowers. They are unspotted, and oblong or oblong-ovate, or lanceolate shaped, green, shiny, bright, and smooth. In Central Europe, ''O. pallens'' is sometimes confused with yellow-flowering form of orchid, ''Dactylorhiza sambucina''. They can easily be distinguished from each other by several morphological features ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchis Pallens (as Orchis Sulphurea) - Curtis' 52 Pl
''Orchis pallens'', the pale orchid or pale-flowered orchid, is a perennial herbaceous plant belonging to the genus ''Orchis'' of the family Orchidaceae. It is found in most of Europe ranging from Spain across to the Caucasus. It blooms in spring with pale yellow flowers. Description ''Orchis pallens'' is the least variable of the ''Orchis'' genus. It has a tuber, which is round,John Wilkes (editor) or oval in shape. They are long and in diameter, underneath the tuber are numerous secondary roots which are long. Above the tuber, it has 4-6 leaves, arranged in basal rosette. The leaves are large, long and wide. They are sometimes so long that they cover the flowers. They are unspotted, and oblong or oblong-ovate, or lanceolate shaped, green, shiny, bright, and smooth. In Central Europe, ''O. pallens'' is sometimes confused with yellow-flowering form of orchid, ''Dactylorhiza sambucina''. They can easily be distinguished from each other by several morphological features ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labellum (botany)
In botany, the labellum (or lip) is the part of the flower of an orchid or '' Canna'', or other less-known genera, that serves to attract insects, which pollinate the flower, and acts as a landing platform for them. ''Labellum'' (plural: ''labella'') is the Latin diminutive of ''labrum'', meaning lip. The labellum is a modified petal and can be distinguished from the other petals and from the sepals by its large size and its often irregular shape. It is not unusual for the other two petals of an orchid flower to look like the sepals, so that the labellum stands out as distinct. Bailey, L. H. ''Gentes Herbarum: Canna x orchiodes''. (Ithaca), 1 (3): 120 (1923); Khoshoo, T. N. & Guha, I. ''Origin and Evolution of Cultivated Cannas.'' Vikas Publishing House. In orchids, the labellum is the modified median petal that sits opposite from the fertile anther and usually highly modified from the other perianth segments. It is often united with the column and can be hinged or movable, fac ... [...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 Sue Biggs 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 discoveries, to enc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mantissa Plantarum Altera
''Mantissa Plantarum Altera'', (abbreviated Mant. Pl. Alt.), is an illustrated book with botanical descriptions which was edited by the Swedish naturalist Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalise ... in the year 1771. ''Mantissa Plantarum Altera'' was the continuation of '' Mantissa Plantarum'' published in 1767 as an appendix to the 12th edition of ''Systema Naturae''. References External links * * * (free-text searchable) Botany books 1771 books 18th-century Latin books {{botany-book-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on the axis of a plant. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern. The stem holding the whole inflorescence is called a peduncle. The major axis (incorrectly referred to as the main stem) above the peduncle bearing the flowers or secondary branches is called the rachis. The stalk of each flower in the inflorescence is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koine. Dia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchis Spitzelii
''Orchis spitzelii'' is a species of orchid found from Sweden (Gotland), eastern Spain to the Caucasus and northwestern Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area .... Specifically, it is native to northern Europe (Sweden), central Europe (Austria and possibly extirpated in Germany), southwestern Europe (the Balearic Islands, Corsica, France, and Spain), southeastern Europe (Albania, Bulgaria, Greece, Italy, Crete, and countries of the former Yugoslavia), northern Africa (Algeria and Morocco), western Asia (Iran, Lebanon, Syria, and Turkey), and both the North Caucasus and Transcaucasia. References External links * spitzelii Orchids of Europe Flora of North Africa Flora of Western Asia Flora of the Caucasus {{Orchidoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alleles
An allele (, ; ; modern formation from Greek ἄλλος ''állos'', "other") is a variation of the same sequence of nucleotides at the same place on a long DNA molecule, as described in leading textbooks on genetics and evolution. ::"The chromosomal or genomic location of a gene or any other genetic element is called a locus (plural: loci) and alternative DNA sequences at a locus are called alleles." The simplest alleles are single nucleotide polymorphisms (SNP). but they can also be insertions and deletions of up to several thousand base pairs. Popular definitions of 'allele' typically refer only to different alleles within genes. For example, the ABO blood grouping is controlled by the ABO gene, which has six common alleles (variants). In population genetics, nearly every living human's phenotype for the ABO gene is some combination of just these six alleles. Most alleles observed result in little or no change in the function of the gene product it codes for. However, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Starch Gelatinization
Starch gelatinization is a process of breaking down the intermolecular bonds of starch molecules in the presence of water and heat, allowing the hydrogen bonding sites (the hydroxyl hydrogen and oxygen) to engage more water. This irreversibly dissolves the starch granule in water. Water acts as a plasticizer. Three main processes happen to the starch granule: granule swelling, crystallite or double helical melting, and amylose leaching. *During heating, water is first absorbed in the amorphous space of starch, which leads to a swelling phenomenon. *Water then enters via amorphous regions into the tightly bound areas of double helical structures of amylopectin. At ambient temperatures these crystalline regions do not allow water to enter. Heat causes such regions to become diffuse, the amylose chains begin to dissolve, to separate into an amorphous form and the number and size of crystalline regions decreases. Under the microscope in polarized light starch loses its bire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrophoresis
Electrophoresis, from Ancient Greek ἤλεκτρον (ḗlektron, "amber") and φόρησις (phórēsis, "the act of bearing"), is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. Electrophoresis of positively charged particles (cations) is sometimes called cataphoresis, while electrophoresis of negatively charged particles (anions) is sometimes called anaphoresis. The electrokinetic phenomenon of electrophoresis was observed for the first time in 1807 by Russian professors Peter Ivanovich Strakhov and Ferdinand Frederic Reuss at Moscow University, who noticed that the application of a constant electric field caused clay particles dispersed in water to migrate. It is ultimately caused by the presence of a charged interface between the particle surface and the surrounding fluid. It is the basis for analytical techniques used in chemistry for separating molecules by size, charge, or binding affinity. Electropho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchis Mascula
''Orchis mascula'', the early-purple orchid, early spring orchis, is a species of flowering plant in the orchid family, Orchidaceae. Description ''Orchis mascula'' is a perennial herbaceous plant with stems up to high, green at the base and purple on the apex. The root system consists of two tubers, rounded or ellipsoid. The leaves, grouped at the base of the stem, are oblong-lanceolate, pale green, sometimes with brownish-purple speckles. The inflorescence is long and it is composed of 6 to 20 flowers gathered in dense cylindrical spikes. The flower size is about and the color varies from pinkish-purple to purple. The lateral sepals are ovate-lanceolate and erect, the median one, together with the petals, is smaller and cover the gynostegium. The labellum is three-lobed and convex, with crenulated margins and the basal part clearer and dotted with purple-brown spots. The spur is cylindrical or clavate, horizontal or ascending. The gynostegium is short, with reddish-green ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
