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Micrasterias Radiata
''Micrasterias furcata'' is a species of unicellular desmid which inhabits freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ... areas. ''M. furcata'' is round, flattened and lobed in body plan. Description ''M. furcata'' generally has a sphere-like body shape, with five lobes on each side, all 10 of the lobes divide into two other much smaller lobes which makes one side of ''M. furcata'' have 15 lobes (while also including those which divide into smaller lobes). References Desmidiaceae {{Algae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Adolph Agardh
Carl Adolph Agardh (23 January 1785 in Båstad, Sweden – 28 January 1859 in Karlstad) was a Swedish botanist specializing in algae, who was eventually appointed bishop of Karlstad. Biography In 1807 he was appointed teacher of mathematics at Lund University, in 1812 appointed professor of botany and natural sciences, and was elected a member of the Royal Swedish Academy of Sciences in 1817, and of the Swedish Academy in 1831. He was ordained a clergyman in 1816, received two parishes as prebend, and was a representative in the clerical chamber of the Swedish Parliament on several occasions from 1817. He was rector magnificus of Lund University 1819-1820 and was appointed bishop of Karlstad in 1835, where he remained until his death. He was the father of Jacob Georg Agardh, also a botanist. System of plant classification The ''Classes Plantarum'' has nine primary divisions into which his classes and natural orders are grouped. These are, with class numbers; # Acotyledon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Ralfs
John Ralfs (13 September 1807 – 14 July 1890) was an English botanist. Born in Millbrook, near Southampton, he was the second son of Samuel Ralfs, a yeoman of an old family in Hampshire. He has been commemorated in the names of many plant groups and taxa at many levels. Early life and education Ralfs's father died at Mudeford near Christchurch before John was a year old, and the children (two sons and two daughters) were brought up at Southampton by their mother. After being educated privately he was articled to his uncle, a surgeon of Brentford, with whom he lived for two years and a half. For two years he was a pupil at Winchester Hospital, and in 1832 he passed his final examination, being specially recommended by the examiners for his knowledge of botany. For some time he practised in partnership with another surgeon at Shoreditch, and he is also said to have practised at Towcester. At Torquay, where he moved on account of lung disease (probably tubercular in origin), he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William West Jr
William West Jr, Royal College of Science, ARCS, (11 February 1875 – 14 September 1901) was an English botany, botanist. He was the elder son of the botanist William West (botanist), William West, and the brother of George Stephen West. West assisted his father in Field research, fieldwork. He wrote papers on flowering plants and phycology for various journals. His official botanical author-abbreviation was ''W. West'', although his authorship in journals was cited as ''W. West Jun.'' West showed great promise in his youth, gaining a scholarship to University of Bradford, Bradford Technical College at age 10. At age 14 he won a Royal Exhibition (scholarship), Exhibition to attend the Royal College of Science, where his achievements in botany won him the Forbes Medal. At age 16 he gained a scholarship to St John's College, Cambridge. He travelled to India to begin a career in which it was hoped that he might discover ways to identify and control fungoid diseases which were att ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Stephen West
George Stephen West (20 April 1876 – 7 August 1919), ARCS, FLS, was a British botanist, a specialist in phycology and protistology, a botanical illustrator and a writer. With his father. botanist William West (West, 1848–1914), he collaborated on numerous scientific books. West's brother was the botanist William West Jr (W. West, 1875–1901), who assisted his father with fieldwork. West was professor of natural history at the Royal Agricultural College at Cirencester, then was based for the rest of his life at the University of Birmingham, where he was elected Mason Professor of Botany, following the retirement of William Hillhouse. While there, he enlarged the botany department. One of his students was Muriel Bristol. He was a Fellow of the Linnean Society of London, and president of Birmingham Natural History and Philosophical Society. West was married with two sons who were young children when he died at age 43 of double pneumonia. He left behind numerous scientific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unicellular
A unicellular organism, also known as a single-celled organism, is an organism that consists of a single cell, unlike a multicellular organism that consists of multiple cells. Organisms fall into two general categories: prokaryotic organisms and eukaryotic organisms. All prokaryotes are unicellular and are classified into bacteria and archaea. Many eukaryotes are multicellular, but some are unicellular such as protozoa, unicellular algae, and unicellular fungi. Unicellular organisms are thought to be the oldest form of life, with early protocells possibly emerging 3.8–4.0 billion years ago. Although some prokaryotes live in colonies, they are not specialised cells with differing functions. These organisms live together, and each cell must carry out all life processes to survive. In contrast, even the simplest multicellular organisms have cells that depend on each other to survive. Most multicellular organisms have a unicellular life-cycle stage. Gametes, for example, are r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desmidiaceae
The Desmidiaceae are one of four families of charophyte green algae in the order Desmidiales (desmids).See the NCBIbr>webpage on Desmidiaceae Data extracted from the Genera Genera accepted by AlgaeBase were: *'' Actinodontum'' – 3 species *'' Actinotaenium'' – 57 species *'' Allorgeia'' – 2 species *'' Amscottia'' – 2 species *'' Bambusina'' – 6 species *'' Bourellyodesmus'' – 8 species *'' Brachytheca'' – 2 species *'' Calocylindrus'' – 3 species *'' Cosmaridium'' – 1 species *'' Cosmarium'' – 1063 species *'' Cosmocladium'' – 8 species *'' Croasdalea'' – 1 species *'' Cruciangulum'' – 1 species *'' Desmidium'' – 21 species *''Docidium ''Docidium'' is a genus of algae belonging to the family Desmidiaceae The Desmidiaceae are one of four families of charophyte green algae in the order Desmidiales (desmids).See the NCBIbr>webpage on Desmidiaceae Data extracted from the ...'' – 37 species *'' Euastridium'' – 3 species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non- salty mineral-rich waters such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Fresh water is the water resource that is of the most and immediate use to humans. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of higher plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
