Karl Hermann Zahn
   HOME
*





Karl Hermann Zahn
Karl Hermann Zahn (3 December 1865, Baiertal – 8 February 1940, Haigerloch) was a German botanist who was a leading authority regarding the genus ''Hieracium'' (hawkweed). He received his education in Karlsruhe (1884–85), and beginning in 1891, worked as a high school teacher in Heidelberg. He later taught high school classes in Freiburg im Breisgau and in Donaueschingen. In 1923 he was appointed professor of geometry, chemistry and material technology at Karlsruhe University of Applied Sciences. Published works * ''Die Hieracien der Schweiz'', 1906 – Hieracium of Switzerland. * ''Les Hieracium des Alpes maritimes'', 1916 – Hieracium of the Maritime Alps. * ''Compositae-Hieracium'', (published in 12 editions from 1921 to 1957). Zahn made valuable contributions involving ''Hieracium'' towards Adolf Engler's "''Das Pflanzenreich Heinrich Gustav Adolf Engler (25 March 1844 – 10 October 1930) was a German botanist. He is notable for his work on alpha taxonomy, plant ta ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Wiesloch
Wiesloch (, locally ; South Franconian: ''Wissloch''), is a town in northern Baden-Württemberg, Germany. It is situated 13 kilometres south of Heidelberg. After Weinheim, Sinsheim and Leimen it is the fourth largest town in the Rhein-Neckar-Kreis. It shares Wiesloch-Walldorf station with its neighbouring town Walldorf. Also in the vicinity of Wiesloch are Dielheim, Malsch (bei Wiesloch), Mühlhausen, Rauenberg and Sankt Leon-Rot. Wiesloch's population grew to more than 20,000 when the administration of the area was reorganised in the 1970s. Wiesloch became a ''Große Kreisstadt'' on 1 January 1973, when Altwiesloch, Baiertal, Frauenweiler and Schatthausen were amalgamated with Wiesloch to form the present municipality. History The settlement that is now Wiesloch town centre originated during the expansion of silver mining in the vicinity in the 10th century. Fossil site The fossil remains of the oldest hummingbird found to date, ''Eurotrochilus inexpectatus'', were found ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Chemistry
Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a Chemical reaction, reaction with other Chemical substance, substances. Chemistry also addresses the nature of chemical bonds in chemical compounds. In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both Basic research, basic and Applied science, applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

People From Wiesloch
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


1940 Deaths
Year 194 ( CXCIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 ''Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus and Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * Battle of Issus: Septimius Severus marches with his army (12 legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao and Lü Bu fight for control over Yan Province; the battle lasts for over 100 ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

1865 Births
Events January–March * January 4 – The New York Stock Exchange opens its first permanent headquarters at 10-12 Broad near Wall Street, in New York City. * January 13 – American Civil War : Second Battle of Fort Fisher: United States forces launch a major amphibious assault against the last seaport held by the Confederates, Fort Fisher, North Carolina. * January 15 – American Civil War: United States forces capture Fort Fisher. * January 31 ** The Thirteenth Amendment to the United States Constitution (conditional prohibition of slavery and involuntary servitude) passes narrowly, in the House of Representatives. ** American Civil War: Confederate General Robert E. Lee becomes general-in-chief. * February ** American Civil War: Columbia, South Carolina burns, as Confederate forces flee from advancing Union forces. * February 3 – American Civil War : Hampton Roads Conference: Union and Confederate leaders discuss peace terms. * February 8 ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Paul Graebner
Carl Otto Robert Peter Paul Graebner (29 June 1871 in Aplerbeck – 6 February 1933 in Berlin) was a German botanist. In 1895 he obtained his doctorate in Berlin, successively working as an assistant and then as curator (1904) at the botanical gardens. During the 1890s he performed botanical investigations in Jerichower Land and Vorharz with Paul Ascherson (1834–1913). He later became a professor at the Botanical Garden and Museum in Berlin-Dahlem, from where he conducted floristic and phytogeographical research. Selected writings * ''Synopsis der mitteleuropaischen Flora'' (with Paul Ascherson), from 1896 - Synopsis of Central European flora. * ''Typhaceae u. Sparganiaceae'', 1900 - Typhaceae and Sparganiaceae. * ''Lehrbuch der ökologischen pflanzengeographie'', 1902 (German translation of Eugen Warming's original book in Danish) - Textbook of ecological phytogeography. * ''Heide und moor'', 1909 - Heath and moor Moor or Moors may refer to: Nature and ecology * M ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Paul Friedrich August Ascherson
Paul Friedrich August Ascherson (June 4, 1834 – March 6, 1913) was a German botanist. His author citation is ''Asch.'', although ''Aschers.'' has been used in the past. Ascherson was born in Berlin in 1834 as the son of health counsellor. In 1850, he started studying medicine at the University of Berlin, but soon started getting more interested in botany. In 1855, he received his doctorate for a dissertation about the flora of the Margraviate of Brandenburg. In the 1850s, he started to botanize in Saxony, including several excursions with Ludwig Schneider and Gustav Maass. In 1860, Ascherson became an assistant at the Botanical Garden in Berlin; in 1865 he also started working at the Royal Herbarium. In 1863, he obtained his habilitation for specific botany and plant geography. In 1873, Ascherson became associate professor at the University of Berlin. He accompanied Friedrich Gerhard Rohlfs on his 1873/74 expedition in the Libyan desert. After 1876, he went on further expedit ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Das Pflanzenreich
Heinrich Gustav Adolf Engler (25 March 1844 – 10 October 1930) was a German botanist. He is notable for his work on alpha taxonomy, plant taxonomy and phytogeography, such as ''Die natürlichen Pflanzenfamilien'' (''The Natural Plant Families''), edited with Karl Anton Eugen Prantl, Karl A. E. von Prantl. Even now, his system of plant classification, the Engler system, is still used by many Herbarium, herbaria and is followed by writers of many manuals and Flora (plants), floras. It is still the only system that treats all 'plants' (in the wider sense, algae to flowering plants) in such depth. Engler published a prodigious number of taxonomic works. He used various artists to illustrate his books, notably Joseph Pohl (1864–1939), an illustrator who had served an apprenticeship as a wood-engraver. Pohl's skill drew Engler's attention, starting a collaboration of some 40 years. Pohl produced more than 33 000 drawings in 6 000 plates for ''Die naturlichen Pflanzenfamilien''. He ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Adolf Engler
Heinrich Gustav Adolf Engler (25 March 1844 – 10 October 1930) was a German botanist. He is notable for his work on alpha taxonomy, plant taxonomy and phytogeography, such as ''Die natürlichen Pflanzenfamilien'' (''The Natural Plant Families''), edited with Karl Anton Eugen Prantl, Karl A. E. von Prantl. Even now, his system of plant classification, the Engler system, is still used by many Herbarium, herbaria and is followed by writers of many manuals and Flora (plants), floras. It is still the only system that treats all 'plants' (in the wider sense, algae to flowering plants) in such depth. Engler published a prodigious number of taxonomic works. He used various artists to illustrate his books, notably Joseph Pohl (1864–1939), an illustrator who had served an apprenticeship as a wood-engraver. Pohl's skill drew Engler's attention, starting a collaboration of some 40 years. Pohl produced more than 33 000 drawings in 6 000 plates for ''Die naturlichen Pflanzenfamilien''. He ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Maritime Alps
The Maritime Alps (french: Alpes Maritimes ; it, Alpi Marittime ) are a mountain range in the southwestern part of the Alps. They form the border between the regions of France, French region of Provence-Alpes-Côte d'Azur and the regions of Italy, Italian regions of Piedmont and Liguria. They are the southernmost part of the Alps. Geography Administratively the range is divided between the Provinces of Italy, Italian provinces of Province of Cuneo, Cuneo and Province of Imperia, Imperia (eastern slopes) and the Departments of France, French department of Alpes-Maritimes (western slopes). The Maritime Alps are drained by the rivers Roya (river), Roya, Var River, Var and Verdon River, Verdon and their tributaries on the French side; by the Stura di Demonte and other tributaries of the Tanaro River, Tanaro and Po River, Po on the Italian side. There are many attractive perched villages, such as Belvédère at the entrance to the spectacular Gordolasque valley, some concealing unex ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Switzerland
). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel, St. Gallen a.o.). , coordinates = , largest_city = Zürich , official_languages = , englishmotto = "One for all, all for one" , religion_year = 2020 , religion_ref = , religion = , demonym = , german: Schweizer/Schweizerin, french: Suisse/Suissesse, it, svizzero/svizzera or , rm, Svizzer/Svizra , government_type = Federalism, Federal assembly-independent Directorial system, directorial republic with elements of a direct democracy , leader_title1 = Federal Council (Switzerland), Federal Council , leader_name1 = , leader_title2 = , leader_name2 = Walter Thurnherr , legislature = Fe ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Karlsruhe University Of Applied Sciences
Karlsruhe ( , , ; South Franconian: ''Kallsruh'') is the third-largest city of the German state (''Land'') of Baden-Württemberg after its capital of Stuttgart and Mannheim, and the 22nd-largest city in the nation, with 308,436 inhabitants. It is also a former capital of Baden, a historic region named after Hohenbaden Castle in the city of Baden-Baden. Located on the right bank of the Rhine near the French border, between the Mannheim/Ludwigshafen conurbation to the north and Strasbourg/Kehl to the south, Karlsruhe is Germany's legal center, being home to the Federal Constitutional Court (''Bundesverfassungsgericht''), the Federal Court of Justice (''Bundesgerichtshof'') and the Public Prosecutor General of the Federal Court of Justice (''Generalbundesanwalt beim Bundesgerichtshof''). Karlsruhe was the capital of the Margraviate of Baden-Durlach ( Durlach: 1565–1718; Karlsruhe: 1718–1771), the Margraviate of Baden (1771–1803), the Electorate of Baden (1803–1806), th ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]