Count Alexandre Henri Gabriel de Cassini (1781-1832) was a French botanist and naturalist, who specialised in the sunflower family (Asteraceae) (then known as family Compositae). 1781 was a common year starting on Monday (see link for calendar). ... 1832 was a leap year starting on Sunday (see link for calendar). ... Botany is the scientific study of plant life. ... Natural history is an umbrella term for what are now usually viewed as several distinct scientific disciplines. ... Genera many, see list The aster or sunflower family (Family Asteraceae or, alternatively Family Compositae) is a taxon of dicotyledonous flowering plants. ...

He was the youngest of five children of Jacques Dominique, Comte de Cassini, who had succeeded his father as the director of the Paris Observatory, famous for completing the map of France. 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. Jacques Dominique, comte de Cassini (June 30, 1748 – October 18, 1845) was a French astronomer, son of César-François Cassini de Thury. ... gros pd]], enfoire at Nançay. ... An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ... Giovanni Domenico (Jean-Dominique) Cassini Portrait Giovanni Domenico Cassini (June 8, 1625 - September 14, 1712) was an Italian astronomer and engineer. ... Adjective Jovian Atmospheric characteristics Atmospheric pressure 70 kPa Hydrogen ~86% Helium ~14% Methane 0. ... Categories: Astronomy stubs ... Adjective Saturnian Atmospheric characteristics Atmospheric pressure 140 kPa Hydrogen >93% Helium >5% Methane 0. ...

The genus Cassinia was named in his honour by the botanist Robert Brown . Robert Brown (1773–1858) Robert Brown (December 21, 1773–June 10, 1858) is acknowledged as the leading British botanist to collect in Australia during the first half of the 19th century. ...

His auctorial abbreviation in botany is Cass. Botany is the scientific study of plantlife. ...

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 [Nouveau] Bulletin des Sciences par la Société Philomatique de Paris between 1812 and 1821. Classes Magnoliopsida- Dicots Liliopsida- Monocots The flowering plants (also called angiosperms) are a major group of land plants. ...

In 1825, A. Cassini placed the North American taxa of Prenanthes in the new genus Nabalus, now considered a subgenus of Prenanthes (family Asteraceae, tribe Lactuceae).

In 1828 he named Dugaldia hoopesii for the Scottish naturalist Dugald Stewart (1753-1828).

Some genera (originally) named by him :

• Brachyscome (1816)
• Carphephorus
• Dracopis Cassini (Coneflower)
• Emilia Cassini (Tasselflower)
• Eurybia (Cassini) S.F. Gray
• Euthamia (Nuttall) Cassini 1825 (Flat-topped Goldenrod)
• Facelis Cassini
• Guizotia Cassini (Niger-seed)
• Helianthus pauciflorus Nuttall ssp. pauciflorus, (Stiff Sunflower), also reported as by Helianthus laetiflorus var. rigidus and H. rigidus (Cassini) Desf.
• Heterotheca Cassini (Camphorweed, Golden-aster)
• Ixeris (Cassini) Cassini
• Ligularia Cassini
• Pallenis Cassini
• Pluchea Cassini (Marsh-Fleabane)
• Sclerolepis Cassini (Sclerolepis)
• Youngia Cassini (Youngia)

Genera See text Coneflower is a flowering plant in family Asteraceae, a member of genus Rudbeckia. ... A Tasselflower is a member of Genus Emilia, a flowering plant of Family Asteraceae. ... Pallenis Categories: Plant stubs | Asteraceae ... Youngia is an Asiatic genus of Asteraceae. ...

References

• Cassini, A. H. G. 1813: Cassini, Henri. 1813. Observations sur le style et le stigmate des synanthérées. Journal de Physique, de Chemie, d'Histoire Naturelle et des Arts 76: 97--128, 181--201, 249-75.
• King, Robert M., Paul C. Janaske, & David B. Lellinger (compilers). 1995. Cassini on Compositae II. Monographs in Systematic Botany from the Missouri Botanical Garden 54: [i]-xii, 1-190.