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Alexandre Henri Gabriel De Cassini
Count Alexandre Henri Gabriel de Cassini (9 May 1781 – 23 April 1832) was a French botanist and naturalist, who specialised in the sunflower family (Asteraceae) (then known as family Compositae). He was the youngest of five children of Jacques Dominique, Comte de Cassini, famous for completing the map of France, who had succeeded his father as the director of the Paris Observatory. He was also the great-great-grandson of famous Italian-French astronomer, Giovanni Domenico Cassini, discoverer of Jupiter's Great Red Spot and the Cassini division in Saturn's rings. The genus ''Cassinia'' was named in his honour by the botanist Robert Brown. He named many flowering plants and new genera in the sunflower family (Asteraceae), many of them from North America. He published 65 papers and 11 reviews in the '' ouveauBulletin des Sciences'' of the Société Philomatique de Paris between 1812 and 1821. In 1825, Cassini placed the North American taxa of ''Prenanthes'' (family Asterace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ambroise Tardieu
Ambroise Tardieu (2 March 1788, in Paris – 17 January 1841, in Paris) was an eminent French cartographer and engraver, and is celebrated for his version of John Arrowsmith's 1806 map of the United States. About Tardieu's son, Auguste Ambroise Tardieu (1818–1879), was also an artist and a famous forensic medical scholar, who supplied the illustrations for Dr. Pierre François Olive Rayer's three-volume ''Traité des maladies des reins'' (1839–41), a treatise on diseases of the kidneys. Neither should be confused with Jean Baptiste Pierre Tardieu, an unrelated French cartographer and engraver active in the early 19th century. Tardieu came from a family boasting a number of fine engravers, and was trained from an early age by his uncle, Pierre Alexandre Tardieu (1756–1844), a leading French engraver. Showing considerable talent in this field, Ambroise persevered and became a celebrated engraver of portraits. In addition he was appointed as geographical engraver for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassini Division
The rings of Saturn are the most extensive ring system of any planet in the Solar System. They consist of countless small particles, ranging in size from micrometers to meters, that orbit around Saturn. The ring particles are made almost entirely of water ice, with a trace component of rocky material. There is still no consensus as to their mechanism of formation. Although theoretical models indicated that the rings were likely to have formed early in the Solar System's history, newer data from '' Cassini'' suggested they formed relatively late. Although reflection from the rings increases Saturn's brightness, they are not visible from Earth with unaided vision. In 1610, the year after Galileo Galilei turned a telescope to the sky, he became the first person to observe Saturn's rings, though he could not see them well enough to discern their true nature. In 1655, Christiaan Huygens was the first person to describe them as a disk surrounding Saturn. The concept that Saturn's rin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century French Botanists
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium. The 19th century was characterized by vast social upheaval. Slavery was abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanding beyond its British homeland for the first time during this century, particularly remaking the economies and societies of the Low Countries, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Islamic gunpowder empires fell into decline and European imperialism brought much of South Asia, Southeast Asia, and almost all of Africa under colonial rule. It was also marked by the collapse of the large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1832 Deaths
Year 183 ( CLXXXIII) 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 Aurelius and Victorinus (or, less frequently, year 936 ''Ab urbe condita''). The denomination 183 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 * An assassination attempt on Emperor Commodus by members of the Senate fails. Births * January 26 – Lady Zhen, wife of the Cao Wei state Emperor Cao Pi (d. 221) * Hu Zong, Chinese general, official and poet of the Eastern Wu state (d. 242) * Liu Zan (Zhengming), Chinese general of the Eastern Wu state (d. 255) * Lu Xun, Chinese general and politician of the Eastern Wu state (d. 245 __NOTOC__ Year 245 ( CCXLV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calenda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1781 Births
Events January–March * January – William Pitt the Younger, later Prime Minister of Great Britain, enters Parliament, aged 21. * January 1 – Industrial Revolution: The Iron Bridge opens across the River Severn in England. * January 2 – Virginia passes a law ceding its western land claims, paving the way for Maryland to ratify the Articles of Confederation. * January 5 – American Revolutionary War: Richmond, Virginia is burned by British naval forces, led by Benedict Arnold. * January 6 – Battle of Jersey: British troops prevent the French from occupying Jersey in the Channel Islands. * January 17 – American Revolutionary War – Battle of Cowpens: The American Continental Army, under Daniel Morgan, decisively defeats British forces in South Carolina. * February 2 – The Articles of Confederation are ratified by Maryland, the 13th and final state to do so. * February 3 – Fourth Anglo-Dutch War – Capture o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
:Category:Taxa Named By Henri Cassini
Taxa named by Henri Cassini (1781–1832), a 19th-century French botanist Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek wo ... and naturalist. {{CatAutoTOC Cassini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nabalus
''Nabalus'' is a genus of Asian and North American flowering plants in the tribe Cichorieae within the family Asteraceae. ''Nabalus'' is now considered the correct name for a group of plants in North America that were formerly considered to be members of '' Prenanthes'', and were included in that genus in the Flora of North America treatment. Common names for the genus include "rattlesnake root" and "white lettuce." The latter reflects its close relationship to lettuce (''Lactuca sativa'') but having flowers that are whitish or purplish-white in some species. Many (perhaps all) of the species are monocarpic perennials, in which an individual plant may live for multiple years in a vegetative condition but then will die after flowering and fruiting. Natural history White lettuce is firmly identified with common lettuce, ''Lactuca sativa''. ''Lactuca sativa'' has its inceptions in the Middle East. Egyptian divider paintings of Min, the divine force of fruitfulness, portray lettuc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prenanthes
''Prenanthes'' is a genus of plant in the family Asteraceae, often referred to as rattlesnake root. Molecular analysis in 2009 revealed that the genus as traditionally envisioned is polyphyletic, meaning that it is a conglomeration of species not closely related to one another. All but one species will be moved to other genera, leaving only ''Prenanthes purpurea''. The species, sometimes called purple lettuce, is widespread across much of Europe and the Middle East. includes photos, drawings, and distribution maps The genus formerly included; '' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philomatic Society
The Philomaths, or Philomath Society ( pl, Filomaci or ''Towarzystwo Filomatów''; from the Greek φιλομαθεῖς "lovers of knowledge"), was a secret student organization that existed from 1817 to 1823 at the Imperial University of Vilnius. History The society was created on 1 October 1817 in Vilna, Vilna Governorate, Russian Empire, which had acquired those territories in the Partitions of Poland in 1794. The society was composed of students and alumni of the Imperial University of Vilna. Notable members included Józef Jeżowski (co-founder and president), Jan Czeczot (co-founder), Józef Kowalewski (co-founder), Onufry Pietraszkiewicz (co-founder), Tomasz Zan (co-founder), Adam Mickiewicz (co-founder), Antoni Edward Odyniec, Ignacy Domejko, Teodor Łoziński, Franciszek Malewski, , Aleksander Chodźko, Michał Kulesza. Most of them were students, but some members and supported included faculty and former alumni. Its structure was a cross between freemason orga ... [...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 are in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (Scottish Botanist From Montrose)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassinia
''Cassinia'' is a genus of about fifty-two species of flowering plants in the family Asteraceae that are native to Australia and New Zealand. Plants in the genus ''Cassinia'' are shrubs, sometimes small trees with leaves arranged alternately, and heads of white, cream-coloured, yellow or pinkish flowers surrounded by several rows of bracts. Description Plants in the genus ''Cassinia'' are shrubs or small trees, sometimes with sticky foliage. The leaves are arranged alternately, the edges flat to strongly rolled under, and the flowers white to cream-coloured, yellow or pinkish, arranged in heads, the heads in cylindrical, top-shaped or bell-shaped corymbs. The heads are surrounded by several rows of usually erect, boat-shaped bracts. The florets are bisexual and cylindrical with five lobes and the cypselas are small and usually have a pappus of bristles. Taxonomy The genus ''Cassinia'' was first formally described in 1817 by Robert Brown in his book ''Observations on the Natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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