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Karl Julius Perleb
Karl Julius Perleb (20 June 1794, Konstanz – 8 June 1845, Freiburg im Breisgau) (also known as Carl Julius Perleb) was a German botanist and natural scientist. Life From 1809 to 1811, Karl Julius Perleb studied at the Albert Ludwigs University of Freiburg, University of Freiburg and earned a doctorate in philosophy and in 1815 a degree in medicine. He lived in Vienna for a brief period of time. In 1818 he returned to the University of Freiburg and began a post-doctoral fellowship. He remained at the university for the remainder of his life. He became an associate professor of natural history in 1821, and in 1823 he became a full professor. From 1828 to 1845 he served as director of the Freiburg Botanical Garden. In 1838 he was appointed rector (academia), prorector at Freiburg University. He left his library and herbarium to the university, together with money for its administration and for travel grants for young scholars of the natural sciences. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Konstanz
Konstanz (, , locally: ; also written as Constance in English) is a university city with approximately 83,000 inhabitants located at the western end of Lake Constance in the south of Germany. The city houses the University of Konstanz and was the residence of the Roman Catholic Diocese of Konstanz for more than 1,200 years. Location The city is located in the state of Baden-Württemberg and situated at the banks of Lake Constance (''Bodensee'' in German). The river Rhine, which starts in the Swiss Alps, passes through Lake Constance and leaves it, considerably larger, by flowing under a bridge connecting the two parts of the city. North of the river lies the larger part of the city with residential areas, industrial estates, and the University of Konstanz; while south of the river is the old town, which houses the administrative centre and shopping facilities in addition to the ''Hochschule'' or the ''University of Applied Sciences''. Car ferries provide access across Lake Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allgemeine Deutsche Biographie
''Allgemeine Deutsche Biographie'' (ADB, german: Universal German Biography) is one of the most important and comprehensive biographical reference works in the German language. It was published by the Historical Commission of the Bavarian Academy of Sciences between 1875 and 1912 in 56 volumes, printed in Leipzig by Duncker & Humblot. The ADB contains biographies of about 26,500 people who died before 1900 and lived in the German language Sprachraum of their time, including people from the Netherlands before 1648. Its successor, the '' Neue Deutsche Biographie'', was started in 1953 and is planned to be finished in 2023. The index and full-text articles of ADB and NDB are freely available online via the website ''German Biography'' (''Deutsche Biographie''). Notes References * * External links * ''Allgemeine Deutsche Biographie'' - full-text articles at German Wikisource Wikisource is an online digital library of free-content textual sources on a wiki, operated b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1794 Births
Events January–March * January 1 – The Stibo Group is founded by Niels Lund as a printing company in Aarhus (Denmark). * January 13 – The U.S. Congress enacts a law providing for, effective May 1, 1795, a United States flag of 15 stars and 15 stripes, in recognition of the recent admission of Vermont and Kentucky as the 14th and 15th states. A subsequent act restores the number of stripes to 13, but provides for additional stars upon the admission of each additional state. * January 21 – King George III of Great Britain delivers the speech opening Parliament and recommends a continuation of Britain's war with France. * February 4 – French Revolution: The National Convention of the French First Republic abolishes slavery. * February 8 – Wreck of the Ten Sail on Grand Cayman. * February 11 – The first session of the United States Senate is open to the public. * March 4 – The Eleventh Amendment to the United States Constituti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Freiburg Faculty Of Biology
The Faculty of Biology is one of the eleven faculties of the University of Freiburg in Freiburg im Breisgau, Baden-Württemberg, Germany. It is part of a strong life sciences network including institutions such as the Max Planck Institute of Immunobiology and Epigenetics, the Bernstein Center Freiburg (BCF), the Center for Applied Biosciences (''Zentrum für angewandte Biowissenschaften'', ZAB) and the Center for Biological Systems Analysis (''Zentrum für Biosystemanalyse'', ZBSA), which started operations in 2008 as offspring of the Freiburg Initiative for Systems Biology (FRISYS), funded by the Federal Ministry of Education and Research (BMBF). History The faculty of biology began to develop in 1960, when Friedrich Oehlkers forwarded the ordinary of botany to Hans Mohr and Bernhard Hassenstein took the chair of Zoology as successor of Otto Koehler. Back then, the department of biology was still part of the ''Naturwissenschaftlich-Mathematische Fakultät'' (faculty of natural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bauhinia
''Bauhinia'' () is a large genus of flowering plants in the subfamily Cercidoideae and tribe Bauhinieae, in the large flowering plant family Fabaceae, with a pantropical distribution. The genus was named after the Bauhin brothers Gaspard and Johann, Swiss- French botanists. Many species are widely planted in the tropics as orchid trees, particularly in India, Sri Lanka, Vietnam, Nepal and southeastern China. Other common names include mountain ebony and ''kachnar''. Before the family was reorganised, a number of genera including the lianas ''Lasiobema'' and ''Phanera'' were placed here (see related genera). In the United States, the trees grow in Hawaii, coastal California, Arizona, Texas, Louisiana, and Florida. There are native species, like ''Bauhinia lunarioides'' native to Texas and widely planted in the Southwest as a landscape plant. ''Bauhinia'' × ''blakeana'' is the floral emblem of Hong Kong—a stylized orchid tree flower appears on the flag of Hong Kong and Ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freiburg
Freiburg im Breisgau (; abbreviated as Freiburg i. Br. or Freiburg i. B.; Low Alemannic: ''Friburg im Brisgau''), commonly referred to as Freiburg, is an independent city in Baden-Württemberg, Germany. With a population of about 230,000 (as of 31 December 2018), Freiburg is the fourth-largest city in Baden-Württemberg after Stuttgart, Mannheim, and Karlsruhe. The population of the Freiburg metropolitan area was 656,753 in 2018. In the south-west of the country, it straddles the Dreisam river, at the foot of the Schlossberg. Historically, the city has acted as the hub of the Breisgau region on the western edge of the Black Forest in the Upper Rhine Plain. A famous old German university town, and archiepiscopal seat, Freiburg was incorporated in the early twelfth century and developed into a major commercial, intellectual, and ecclesiastical center of the upper Rhine region. The city is known for its medieval minster and Renaissance university, as well as for its high stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Ray
John Ray FRS (29 November 1627 – 17 January 1705) was a Christian English naturalist widely regarded as one of the earliest of the English parson-naturalists. Until 1670, he wrote his name as John Wray. From then on, he used 'Ray', after "having ascertained that such had been the practice of his family before him". He published important works on botany, zoology, and natural theology. His classification of plants in his ''Historia Plantarum'', was an important step towards modern taxonomy. Ray rejected the system of dichotomous division by which species were classified according to a pre-conceived, either/or type system , and instead classified plants according to similarities and differences that emerged from observation. He was among the first to attempt a biological definition for the concept of ''species'', as "a group of morphologically similar organisms arising from a common ancestor". Another significant contribution to taxonomy was his division of plants into those ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petals
Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the ''calyx'' and lie just beneath the corolla. The calyx and the corolla together make up the perianth, the non-reproductive portion of a flower. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ''tepal'' is appropriate include genera such as ''Aloe'' and ''Tulipa''. Conversely, genera such as ''Rosa'' and '' Phaseolus'' have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly colored tepals. Since they include Liliales, an alternative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calyciflorae
Calyciflorae is a grouping of plants that is no longer used by botanists. Augustin Pyramus de Candolle defined it as a subclass within the class Dicotyledoneae. It overlapped largely with the modern Rosids group. The group Calyciflorae was defined as: * Flowers with sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coine ...s united at least at the base ( gamosepalous), a "torus" (disc) at the base of the calyx from which the petals and stamens appear to emerge, the ovary either free or attached to the calyx. See also * De Candolle system References Historically recognized angiosperm taxa {{angiosperm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Class (biology)
In biological classification, class ( la, classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders. Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class fitting between phylum and order. History The class as a distinct rank of biological classification having its own distinctive name (and not just called a ''top-level genus'' ''(genus summum)'') was first introduced by the French botanist Joseph Pitton de Tournefort in his classification of plants that appeared in his ''Eléments de botanique'', 1694. Insofar as a general definition of a class is available, it has historically been conceived as embracing taxa that combine a distinct ''grade'' of organization—i.e. a 'level of complexity', measured in terms of how differentiated their organ systems are into distinct regions or sub-organs—with a distinct ''type'' of construction, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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