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Randonia
''Randonia'' is a monotypic genus of flowering plants belonging to the family Resedaceae. The only species is ''Randonia africana''. Its native range is Sahara desert in northern Africa. It is found in Algeria, Egypt, Libya, Mauritania, Morocco and Tunisia. The genus name of ''Randonia'' is in honour of Jacques Louis Randon (1795–1871), a French military and political leader, also Marshal of France and governor of Algeria. The Latin specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ... of ''africana'' means coming from Africa. The genus and the species were first described and published in Bull. Soc. Bot. France Vol.6 on pages 391-392 in 1859. References {{Taxonbar, from1=Q9066593, from2=Q17241243 Resedaceae Monotypic Brassicales genera Plants described in 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacques Louis Randon
Jacques Louis César Alexandre Randon, 1st Count Randon (25 March 1795 – 16 January 1871) was a French military and political leader, also Marshal of France and governor of Algeria. Early life He was born at Grenoble in Dauphiné, of a Protestant family. Later in life he converted to Catholicism, under the influence of his second wife. He was a nephew of General Jean-Gabriel, Count Marchand, Also a Revolutionary Antoine-Joseph Barnave was a first cousin of his mother. He enlisted in the French Army at sixteen, joined his uncle Marchand in Warsaw and was promoted to sergeant on 11 April 1812. He took part in the Russian Campaign, the taking of Moscow and the retreat back. He then fought in Napoleon's campaigns in Germany and France, notably at the battles of Lützen, Bautzen and Leipzig. Middle life He was Minister of War from January to October 1851, after which he was appointed Governor-General of Algerie (11 December 1851 to 31 August 1858). Although initially not in favour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resedaceae
Resedaceae is a family of mostly herbaceous dicotyledonous plants comprising 107 known species in 8 to 12 genera: *'' Borthwickia'' - 1 species, sometimes placed in its own family Borthwickiaceae *'' Caylusea'' - 3 species *''Forchhammeria'' - 10 species *''Homalodiscus'' - 2 species *'' Neothorelia'' - 1 species *''Ochradenus'' - 4 species *''Oligomeris'' - 3 species *''Randonia'' - 1 species *'' Reseda'' - ca 55 species *'' Sesamoides'' - 1 species *'' Stixis'' - 7 species *''Tirania'' 1 species Taxonomy Roman natural phylosopher Gaius Plinius Secundus or Pliny the Elder, who lived in the first century, is attributed to have used the name ''Reseda'' for the first time in writing. But he must have used it for another plant, because the medial effect of healing swellings and inflamations that he described, could not be reproduced from ''Reseda'' by later researcher. The British botanist Samuel Frederick Gray erected the family Resedaceae in 1821, based on the type genus ''Res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coss
The kos (Hindi: कोस), also spelled ''coss'', ''koss'', ''kosh'', ''krosh'', and ''krosha'', is a unit of measurement which is derived from a Sanskrit term, क्रोश ''krośa'', which means to "call", as the unit was supposed to represent the distance at which another human could be heard. It is an ancient Indian subcontinental standard unit of distance, in use since at least 4 BC. According to the ''Artha-śāstra'', a ''krośa'' or ''kos'' is about 3000 meters or 1.8 miles. Another conversion is based on the Mughal emperor Akbar, who standardized the unit to 5000 ''guz'' in the Ain-i-Akbari. The British in India standardized Akbar's ''guz'' to 33 inches, making the ''kos'' approximately 4191 meters. Another conversion suggested a ''kos'' to be approximately 2 English miles. Arthashastra Standard units The ''"Arthashastra'': Chapter XX. "Measurement of space and time", authored in 4th century BC by Chanakya (Vishnugupta Kauṭilya), sets this standard breakup of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Saint-Charles Cosson
Ernest Saint-Charles Cosson (22 July 1819 – 31 December 1889) was a French botanist born in Paris. Cosson is known for his botanical research in North Africa, and during his career he participated in eight trips to Algeria. In several of these he was accompanied by Henri-René Le Tourneux de la Perraudière (1831-1861), whom he honoured in the naming of several species and genera (e.g., ''Perralderia'', ''Galium perralderii''). In 1863 he was elected president of the ''Société botanique de France'', and from 1873 to 1889, he was a member of the ''Académie des sciences''. In 1882 Jules Ferry, as Minister of Public Instruction, decided to create a mission to explore the Regency of Tunisia. The expedition was headed by Cosson and included the botanist Napoléon Doumet-Adanson and other naturalists. In 1884 a geological section under Georges Rolland was added to the Tunisian Scientific Exploration Mission. Rolland was assisted by Philippe Thomas from 1885 and by Georges Le Mesle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Genus
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda.' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahara
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