Charles Isidore Douin
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Charles Isidore Douin
Charles Isidore Douin (1858 – 1944) was a French bryologist who was a native of Bouville, Eure-et-Loir. Biography He taught school in Chartres, and was the author of a highly regarded work on mosses and liverworts titled ''Nouvelle flore des mousses et des hépatiques pour la détermination facile des espèces'' (1892). He also published a book involving bryology of Eure-et-Loir, ''Muscinées d'Eure-et-Loir'' (1906). The liverwort genus ''Douinia'' from the family Scapaniaceae is named in his honor in 1928.BFNA_ProvPubl
Bryophyte Flora of North America, Provisional Publication, Douinia


References

* ''Parts of this article are based on a translation of an equivalent article at the French Wikipedia.'' 1858 births 1944 deaths People from Eure-et-Loir 20th-century French botanists Bryologists ...
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Bouville, Eure-et-Loir
Bouville () is a commune in the Eure-et-Loir department in northern France. Population See also *Communes of the Eure-et-Loir department The following is a list of the 365 communes of the Eure-et-Loir department of France. The communes cooperate in the following intercommunalities (as of 2020):Communes of Eure-et-Loir {{EureLoir-geo-stub ...
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Chartres
Chartres () is the prefecture of the Eure-et-Loir department in the Centre-Val de Loire region in France. It is located about southwest of Paris. At the 2019 census, there were 170,763 inhabitants in the metropolitan area of Chartres (as defined by the INSEE), 38,534 of whom lived in the city (commune) of Chartres proper. Chartres is famous worldwide for its cathedral. Mostly constructed between 1193 and 1250, this Gothic cathedral is in an exceptional state of preservation. The majority of the original stained glass windows survive intact, while the architecture has seen only minor changes since the early 13th century. Part of the old town, including most of the library associated with the School of Chartres, was destroyed by Allies of World War II, Allied bombs in 1944. History Chartres was one of the principal towns in Gaul of the Carnutes, a Celts, Celtic tribe. In the Gallo-Roman period, it was called ''Autricum'', name derived from the river ''Autura'' (Eure), and a ...
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Mosses
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) ''sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically tall, though some species are much larger. ''Dawsonia'', the tallest moss in the world, can grow to in height. There are app ...
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Liverworts
The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information. It is estimated that there are about 9000 species of liverworts. Some of the more familiar species grow as a flattened leafless thallus, but most species are leafy with a form very much like a flattened moss. Leafy species can be distinguished from the apparently similar mosses on the basis of a number of features, including their single-celled rhizoids. Leafy liverworts also differ from most (but not all) mosses in that their leaves never have a costa (present in many mosses) and may bear marginal cilia (very rare in mosses). Other differences are not universal for all mosses and liverworts, but the occurrence of leaves arranged in three ranks, the presence of deep lobes or segmented leaves, or a lack of clearly differ ...
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Bryology
Bryology (from Greek , a moss, a liverwort) is the branch of botany concerned with the scientific study of bryophytes (mosses, liverworts, and hornworts). Bryologists are people who have an active interest in observing, recording, classifying or researching bryophytes. The field is often studied along with lichenology due to the similar appearance and ecological niche of the two organisms, even though bryophytes and lichens are not classified in the same kingdom. History Bryophytes were first studied in detail in the 18th century. The German botanist Johann Jacob Dillenius (1687–1747) was a professor at Oxford and in 1717 produced the work "Reproduction of the ferns and mosses." The beginning of bryology really belongs to the work of Johannes Hedwig, who clarified the reproductive system of mosses (1792, ''Fundamentum historiae naturalist muscorum'') and arranged a taxonomy. Research Areas of research include bryophyte taxonomy, bryophytes as bioindicators, DNA sequencing, ...
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Eure-et-Loir
Eure-et-Loir (, locally: ) is a French department, named after the Eure and Loir rivers. It is located in the region of Centre-Val de Loire. In 2019, Eure-et-Loir had a population of 431,575.Populations légales 2019: 28 Eure-et-Loir
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History

Eure-et-Loir is one of the original 83 departments created during the on March 4, 1790 pursuant to the Act of December 22, 1789. It was created mainly from parts of the former provinces of (Beauce) and Maine (

Douinia
''Douinia'' is a genus of liverworts belonging to the family Scapaniaceae. The species of this genus are found in Eurasia and Northern America. The genus name of ''Douinia'' is in honour of Charles Isidore Douin (1858 – 1944), who was a French bryologist who was a native of Bouville, Eure-et-Loir. The genus was circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ... by Christian Erasmus Otterstrøm Jensen in Commentat. Biol. Vol.3 (Issue 1) on page 13 in 1928. Species * '' Douinia imbricata'' (M.Howe) Konstant. & Vilnet * '' Douinia ovata'' (Dicks.) H.Buch * '' Douinia plicata'' (Lindb.) Konstant. & Vilnet References {{Taxonbar, from=Q13575051 Scapaniaceae Jungermanniales genera ...
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Scapaniaceae
Scapaniaceae is a family of liverworts in order Jungermanniales Jungermanniales is the largest order of liverworts. They are distinctive among the liverworts for having thin leaf-like flaps on either side of the stem. Most other liverworts are thalloid, with no leaves. Due to their dorsiventral organization .... The family has been extended to include the former family Lophoziaceae. References External links * * Liverwort families {{Bryophyte-stub ...
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French Wikipedia
The French Wikipedia (french: Wikipédia en français) is the French-language edition of Wikipedia, the free online encyclopedia. This edition was started on 23 March 2001, two months after the official creation of Wikipedia. It has articles as of , making it the -largest Wikipedia overall, after the English-, Cebuano-, Swedish- and German-language editions, the largest Wikipedia edition in a Romance language. It has the third-most edits, and ranks 6th in terms of depth among Wikipedias. It was also the third edition, after the English Wikipedia and German Wikipedia, to exceed 1 million articles: this occurred on 23 September 2010. In April 2016, the project had 4657 active editors who made at least five edits in that month. In 2008, the French encyclopaedia '' Quid'' cancelled its 2008 edition, citing falling sales on competition from the French edition of Wikipedia. As of , there are users, admins and files on the French Wikipedia. On 2 December 2014, the French-l ...
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1858 Births
Events January–March * January – **Benito Juárez (1806–1872) becomes Liberal President of Mexico. At the same time, conservatives install Félix María Zuloaga (1813–1898) as president. **William I of Prussia becomes regent for his brother, Frederick William IV, who had suffered a stroke. * January 9 ** British forces finally defeat Rajab Ali Khan of Chittagong ** Anson Jones, the last president of the Republic of Texas, commits suicide. * January 14 – Orsini affair: Felice Orsini and his accomplices fail to assassinate Napoleon III in Paris, but their bombs kill eight and wound 142 people. Because of the involvement of French émigrés living in Britain, there is a brief anti-British feeling in France, but the emperor refuses to support it. * January 25 – The ''Wedding March'' by Felix Mendelssohn becomes a popular wedding recessional, after it is played on this day at the marriage of Queen Victoria's daughter Victoria, Princess Royal, to Pri ...
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1944 Deaths
Events Below, the events of World War II have the "WWII" prefix. January * January 2 – WWII: ** Free France, Free French General Jean de Lattre de Tassigny is appointed to command First Army (France), French Army B, part of the Sixth United States Army Group in North Africa. ** Landing at Saidor: 13,000 US and Australian troops land on Papua New Guinea, in an attempt to cut off a Japanese retreat. * January 8 – WWII: Philippine Commonwealth troops enter the province of Ilocos Sur in northern Luzon and attack Japanese forces. * January 11 ** President of the United States Franklin D. Roosevelt proposes a Second Bill of Rights for social and economic security, in his State of the Union address. ** The Nazi German administration expands Kraków-Płaszów concentration camp into the larger standalone ''Konzentrationslager Plaszow bei Krakau'' in occupied Poland. * January 12 – WWII: Winston Churchill and Charles de Gaulle begin a 2-day conference in Marrakech ...
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