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Ulva Rigida
''Ulva rigida'' is a species of green algae in the family Ulvaceae. The species prefers eutrophic Eutrophication is a general term describing a process in which nutrients accumulate in a body of water, resulting in an increased growth of organisms that may deplete the oxygen in the water; ie. the process of too many plants growing on the s ... environments. References Ulvaceae Plants described in 1823 Chlorophyta species {{Ulvophyceae-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; # Acotyle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Traugott Kützing
Friedrich Traugott Kützing (8 December 1807 in Ritteburg – 9 September 1893) was a German pharmacist, botanist and phycologist. Despite his limited background in regard to higher education, Kützing made significant scientific contributions. In 1833, he demonstrated differences between diatoms and desmids, thus separating the two groups into families of their own. Also, independent of Charles Cagniard-Latour (1777–1859) and Theodor Schwann (1810–1882), he was among the first to provide comprehensive answers in regard to yeast and the role it played in fermentation. In 1849, he published ''Species Algarum'', a large work that provided descriptions for 6000 species of algae. He is the taxonomic authority of the genera '' Syringodium'' (family Cymodoceaceae) and ''Phlebothamnion'' (family Ceramiaceae). Early life As a young man, he worked in several pharmacies in Germany, also serving as assistant for a few semesters at the chemical-pharmaceutical institute of Fran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste François Le Jolis
Auguste François Le Jolis (1 December 1823, Cherbourg - 20 August 1904, Cherbourg) was a French merchant, judge and botanist. He is largely known for investigations of cryptogams (algae, hepatics, mosses) found in the department of Manche. In August 1852, he was a founding member of the . Le Jolis distributed the exsiccata series ''Algues marines de Cherbourg''. The algae genus ''Lejolisia'' (family Wrangeliaceae) was named after Le Jolis by Jean-Baptiste Édouard Bornet (1828-1911). Selected writings * ''Observations sur quelques plantes rares découvertes aux environs de Cherbourg'', 1847 - Observations of some rare plants discovered in the environs of Cherbourg. * ''Lichens des environs de Cherbourg'', 1859 - Lichens in the environs of Cherbourg. * ''Plantes vasculaires des environs de Cherbourg'', 1860 - Vascular plants Vascular plants (), also called tracheophytes (, ) or collectively tracheophyta (; ), are plants that have lignified tissues (the xylem) for conducting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otter Wilhelm Sonder
Otters are carnivorous mammals in the subfamily Lutrinae. The 13 extant otter species are all semiaquatic, aquatic, or marine. Lutrinae is a branch of the Mustelidae family, which includes weasels, badgers, mink, and wolverines, among other animals. Otters' habitats include dens known as holts or couches, with their social structure described by terms such as dogs or boars for males, bitches or sows for females, and pups or cubs for offspring. Groups of otters can be referred to as a bevy, family, lodge, romp, or raft when in water, indicating their social and playful characteristics. Otters are known for their distinct feces, termed spraints, which can vary in smell from freshly mown hay to putrefied fish. Otters exhibit a varied life cycle with a gestation period of about 60–86 days, and offspring typically stay with their family for a year. They can live up to 16 years, with their diet mainly consisting of fish and sometimes frogs, birds, or shellfish, depending on the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jakob Georg Agardh
Jacob Georg Agardh (8 December 1813 in Lund, Sweden – 17 January 1901 in Lund, Sweden) was a Swedish botanist, phycologist, and taxonomist. Early life and career He was the son of Carl Adolph Agardh, and from 1854 until 1879 was professor of botany at Lund University. Agardh designed the current 1862 blueprints for the botanical garden Botaniska trädgården in Lund. In 1849, he was elected a member of the Royal Swedish Academy of Sciences. Agardh was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1878. It is said that the naturalist Mary Philadelphia Merrifield learnt Swedish in order that she could correspond with him. Australian female collectors and Mueller Ferdinand von Mueller, as the Government Botanist of Victoria from 1853 to 1896, played an important role in facilitating the study of Australian flora, including algae. Mueller established an extensive network of collectors across Australia, many of whom were women. He actively enc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Algae
The green algae (: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/ Streptophyta. The land plants ( Embryophytes) have emerged deep within the charophytes as a sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to include them. The completed clade that includes both green algae and embryophytes is monophyletic and is referred to as the clade Viridiplantae and as the kingdom Plantae. The green algae include unicellular and colonial flagellates, most with two flagella per cell, as well as various colonial, coccoid (spherical), and filamentous forms, and macroscopic, multicellular seaweeds. There are about 22,000 species of green algae, many of which live most of their lives as single cells, while other species form coenobia (colonies), long filaments ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulvaceae
Ulvaceae () is a widely distributed family of thin green algae characterized by a flat or a hollow tubular thallus, reproducing via conjugation of planogametes or zoospores, and classified within the orders Ulotrichales or, more commonly, Ulvales. Genera in the family Ulvaceae * '' Gemina'' V.J.Chapman, 1952 * '' Letterstedtia'' Areschoug, 1850 * '' Ochlochaete'' Thwaites, 1849 * '' Percursaria'' Bory de Saint-Vincent, 1823 * '' Ruthnielsenia'' C.J.O'Kelly, B.Wynsor & W.K.Bellows, 2004 * '' Ryuguphycus'' H.Kawai, T.Hanyuda & T.Kitayama, 2020 * ''Ulva Ulva (; ) is a small island in the Inner Hebrides of Scotland, off the west coast of Mull. It is separated from Mull by a narrow strait, and connected to the neighbouring island of Gometra by a bridge. Much of the island is formed from Cen ...'' Linnaeus, 1753 * '' Ulvaria'' Ruprecht, 1850 * '' Umbraulva'' E.H.Bae & I.K.Lee, 2001 References {{Authority control Ulvophyceae families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophic
Eutrophication is a general term describing a process in which nutrients accumulate in a body of water, resulting in an increased growth of organisms that may deplete the oxygen in the water; ie. the process of too many plants growing on the surface of a river, lake, etc., often because chemicals that are used to help crops grow have been carried there by rain. Eutrophication may occur naturally or as a result of human actions. Manmade, or cultural, eutrophication occurs when sewage, industrial wastewater, fertilizer runoff, and other nutrient sources are released into the environment. Such nutrient pollution usually causes algal blooms and bacterial growth, resulting in the depletion of dissolved oxygen in water and causing substantial environmental degradation. Many policies have been introduced to combat eutrophication, including the United Nations Development Program (UNDP)'s sustainability development goals. Approaches for prevention and reversal of eutrophication include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Described In 1823
Plants are the eukaryotes that form the kingdom Plantae; they are predominantly photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with cyanobacteria to produce sugars from carbon dioxide and water, using the green pigment chlorophyll. Exceptions are parasitic plants that have lost the genes for chlorophyll and photosynthesis, and obtain their energy from other plants or fungi. Most plants are multicellular, except for some green algae. Historically, as in Aristotle's biology, the plant kingdom encompassed all living things that were not animals, and included algae and fungi. Definitions have narrowed since then; current definitions exclude fungi and some of the algae. By the definition used in this article, plants form the clade Viridiplantae (green plants), which consists of the green algae and the embryophytes or land plants ( hornworts, liverworts, mosses, lycophytes, ferns, conifers and other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
