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Columella (other)
Columella (4–) was a Roman writer. Columella, meaning ''little column'', may also refer to: Biology * Columella (auditory system), a part of the auditory system of amphibians, reptiles and birds * Columella (botany), an axis of sterile tissue which passes through the center of the spore-case of mosses and a cellular layer near the tip of a plant's root cap * Columella (gastropod), an anatomical feature of a coiled snail or gastropod shell * ''Columella'' (genus), a genus of land gastropods in the family Vertiginidae * Columella (plant), a cultivar of Dutch elm * '' Columella nasi'', the fleshy external end of the nasal septum * In corals, the central axis structure of a corallite formed by the inner ends of the septa Other uses * Columella (wine), a wine label by South African producer The Sadie Family * ''Columella; or, The Distressed Anchoret'', a 1779 novel by Richard Graves See also * Collum (other) * Column (other) A column is a vertical structura ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella
Lucius Junius Moderatus Columella (; Arabic: , 4 – ) was a prominent writer on agriculture in the Roman Empire. His ' in twelve volumes has been completely preserved and forms an important source on Roman agriculture, together with the works of Cato the Elder and Marcus Terentius Varro, both of which he occasionally cites. A smaller book on trees, ', is usually attributed to him. In 1794 the Spanish botanists José Antonio Pavón Jiménez and Hipólito Ruiz López named a genus of Peruvian asterid ''Columellia'' in his honour. Personal life Little is known of Columella's life. He was probably born in Gades, Hispania Baetica (modern Cádiz), possibly to Roman parents. After a career in the army (he was tribune in Syria in 35), he turned to farming his estates at Ardea, Carseoli, and Alba in Latium. ''De re rustica'' In ancient times, Columella's work "appears to have been but little read", cited only by Pliny the Elder, Servius, Cassiodorus, and Isidorus, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (auditory System)
In the auditory system, the columella contributes to hearing in amphibians, reptiles and birds. The columella form thin, bony structures in the interior of the skull and serve the purpose of transmitting sounds from the eardrum. It is an evolutionary homolog of the stapes, one of the auditory ossicles in mammals. In many species, the extracolumella is a cartilaginous structure that grows in association with the columella. During development, the columella is derived from the dorsal end of the hyoid arch. Evolution The evolution of the columella is closely related to the evolution of the jaw joint. It is an ancestral homolog of the stapes, and is derived from the hyomandibular bone of fishes. As the columella is derived from the hyomandibula, many of its functional relationships remain the same. The columella resides in the air-filled tympanic cavity of the middle ear. The footplate, or proximal end of the columella, rests in the oval window. Sound is conducted through th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (botany)
Columella (in plants) is an axis of sterile tissue which passes through the center of the spore-case of mosses. In fungi it refers to a centrally vacuolated part of a hypha, bearing spores. The word finds analogous usage in myxomycetes. The term columella is also used to refer to story 1 to story 4 (S1 – S4) cells in the root cap The root cap is a type of tissue at the tip of a plant root. It is also called calyptra. Root caps contain statocytes which are involved in gravity perception in plants. If the cap is carefully removed the root will grow randomly. The root cap ..., located apically of the quiescent centre. References Plant anatomy {{Botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (gastropod)
The columella (meaning "little column") or (in older texts) pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image. The columella runs from the apex of the shell to the midpoint of the undersurface of the shell, or the tip of the siphonal canal in those shells which have a siphonal canal. If a snail shell is visualized as a cone of shelly material which is wrapped around a central axis, then the columella more or less coincides spatially with the central axis of the shell. In the case of shells that have an umbilicus, the columella is a hollow structure. The columella of some groups of gastropod shells can have a number of plications or folds (the columellar fold, plaits or plicae), which are usually visible when looking to the inner lip into the aperture of the shell. These folds can be wide or narrow, promine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (genus)
''Columella'' is a genus of very small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Truncatellinidae, the whorl snails and allies. Taxonomy ''Columella'' is commonly classified within the Vertiginidae. However, as shown by Nekola & Coles (2016), the genus is not that closely related to the Vertiginidae, but may rather be affiliated with the Chondrinidae or form a pupilloid family of its own. A systematic revision is pending. Species Species within the genus ''Columella'' include: * '' Columella acicularis'' Almuhambetova, 1979 * ''Columella aspera'' Waldén, 1966 * ''Columella columella'' ( G. v. Martens, 1830) * '' Columella edentula'' ( Draparnaud, 1805) - toothless column * ''Columella hartmutnordsiecki'' Schlickum & Geissert, 1980 * ''Columella hasta'' (Hanna, 1911) * ''Columella intermedia'' Schileyko & Almuhambetova, 1984 * ''Columella microspora'' (R.T. Lowe, 1852) * ''Columella nymphaepratensis'' Hlaváč & Pokryszko, 2009 * ''C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (plant)
''Ulmus'' 'Columella' is a Dutch elm cultivar raised by the Dorschkamp Research Institute for Forestry & Landscape Planning, Wageningen, from a selfed or openly pollinated seedling of the hybrid clone ' Plantyn' sown in 1967. It was released for sale in 1989 after proving extremely resistant to Dutch elm disease following inoculation with unnaturally high doses of the pathogen, ''Ophiostoma novo-ulmi''. However, propagated by grafting onto wych elm rootstocks, graft failure owing to incompatibility has become a common occurrence in the Netherlands. Description 'Columella' makes a tall, fastigiate tree with very upright branches, but broadens in later yearhttp://www.kemphaan.nl/boomverhalen/wg.php?meer=60]. The rough, rounded, and twisted leaves, itself a replacement for the Belgian Elm, Ulmus 'Belgica', ''Ulmus × hollandica'' 'Belgica', which had succumbed so readily to the earlier strain of Dutch elm disease after World War I. 'Columella' has also been planted to replace Guer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella Nasi
The nasal septum () separates the left and right airways of the nasal cavity, dividing the two nostrils. It is depressed by the depressor septi nasi muscle. Structure The fleshy external end of the nasal septum is called the columella or columella nasi, and is made up of cartilage and soft tissue. The nasal septum contains bone and hyaline cartilage. It is normally about 2 mm thick. The nasal septum is composed of four structures: * Perpendicular plate of ethmoid bone * Vomer bone * Septal nasal cartilage * Maxillary bone (the crest) The lowest part of the septum is a narrow strip of bone that projects from the maxilla and the palatine bones, and is the length of the septum. This strip of bone is called the maxillary crest; it articulates in front with the septal nasal cartilage, and at the back with the vomer. The maxillary crest is described in the anatomy of the nasal septum as having a maxillary component and a palatine component. Development At an early period, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corallite
A corallite is the skeletal cup, formed by an individual stony coral polyp, in which the polyp sits and into which it can retract. The cup is composed of aragonite, a crystalline form of calcium carbonate, and is secreted by the polyp. Corallites vary in size, but in most colonial corals they are less than in diameter. The inner surface of the corallite is known as the calyx. The vertical blades inside the calyx are known as septa and in some species, these ridges continue outside the corallite wall as costae In vertebrate anatomy, ribs ( la, costae) are the long curved bones which form the rib cage, part of the axial skeleton. In most tetrapods, ribs surround the chest, enabling the lungs to expand and thus facilitate breathing by expanding the c .... Where there is no corallite wall, the blades are known as septocostae. The septa, costae and septocostae may have ornamentation in the form of teeth and may be thick, thin or variable in size. Sometimes there are paliform l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (wine)
The Sadie Family is a South African producer of wine located in the Swartland region. Following the emergence of flagship wines Columella and Palladius, winemaker Eben Sadie has been described as an ', South Africa's first certified celebrity winemaker, and by supporters as "one of the greatest and most original winemakers in the southern hemisphere". He has also branched out to other wine regions, such as in Spain.Goode, Jamie, wineanorak.coThe wines of Sadie Family/ref>Robinson, Jancis, jancisrobinson.com (11 August 2009)The virtues of blending/ref> History Prior to his career as a winemaker, following a period as a surfer, Eben Sadie traveled and worked in several of the world's wine regions, including Germany, Austria, Italy, Oregon and Burgundy. Having returned to South Africa, Sadie found work under Charles Back at The Spice Route in 1998,Apple, R.W., ''The New York Times'' (22 April 1998)A South African Black On a Road Never Traveled/ref> eventually becoming the chief wine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Graves
Richard Graves (4 May 1715 – 23 November 1804) was an English cleric, poet, and novelist. He is remembered especially for his picaresque novel ''The Spiritual Quixote'' (1773). Early life Graves was born at Mickleton Manor, Mickleton, Gloucestershire, to Richard Graves (1677–1729), an antiquary, and his Welsh wife Elizabeth, née Morgan. Morgan Graves (died 1770) of the Inner Temple, and the cleric Charles Caspar Graves, were his brothers. Graves was educated first at a school run by William Smith, Curate at Mickleton from 1729, and then at John Roysse's Free School in Abingdon (now Abingdon School). Smith's well-read daughter Utrecia later formed part of his life, a relationship he broke off before her death in 1743. Oxford don Graves gained a scholarship at Pembroke College, Oxford, matriculating on 7 November 1732. George Whitefield was a servitor of Pembroke College, and they took their BA degree on the same day in July 1736. In the same year he was elected to a f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collum (other)
{{disambiguation ...
Collum may refer to: * , the Latin term for neck * Collum (millipedes), the first segment behind the head of millipedes Surnames * Herbert Collum (1914-1982), German organist, harpsichordist, composer, and conductor * Hugh Collum (1940–2005), British businessman * Jackie Collum (born 1927), American Major League Baseball pitcher * Jason Paul Collum (born 1973), American film maker * John Collum (1926–1962), American actor * Vera Collum (1883–1957), British journalist, suffragist, anthropologist, photographer, radiographer and writer * Willie Collum (born 1979), Scottish football referee See also * Columella (other) * Column (other) * Cervix (other) * Neck (other) The neck is the body part between the head and torso of many animals. Neck may also refer to: Other uses in anatomy Bones * Femur neck, part of the femur bone * Surgical neck of the humerus * Anatomical neck of humerus * Neck of the malleus, part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
