Alwin Berger (1871 - 20 April 1931) was a German botanist best known for his contribution to the nomenclature of succulent plants, particularly agaves and cacti. Born in Möschlitz, he worked at the botanic gardens in Dresden and Frankfurt. He was curator of the Hanbury Garden, the garden of Sir Thomas Hanbury in La Mortola, near Ventimiglia in northwestern Italy, close to the border with France, from 1897 to 1914. After working in Germany from 1914 to 1919, he studied in the U.S. for three years, before spending his final years as director of the department of botany of the natural history museum in Stuttgart April 20 is the 110th day of the year in the Gregorian calendar (111th in leap years). ... 1931 is a common year starting on Thursday. ... Botany is the scientific study of plant life. ... Succulent plants, or succulents, are plants that store water in their enlarged fleshy leaves, stems, or roots. ... Species Agave americana Agave fourcroydes Agave sisalana many others, see text Agaves are succulent plants of a large botanical genus of the same name, belonging to the family Agavaceae. ... Genera See Taxonomy of the Cactaceae A cactus (plural, cacti or cactuses) is a type of (usually) succulent plant belonging to the dicotyledonous flowering plant family, Cactaceae. ... Inside the United States Botanic Garden Botanical gardens grow a wide variety of plants both for scientific purposes and for the enjoyment and education of visitors. ... Dresden is the capital city of the German federal state of Saxony, is situated in a valley on the river Elbe. ... Frankfurt am Main â–¶(?) [ˈfraÅ‹kfÊŠrt] is the largest city in the German state of Hesse and the fifth-largest city in Germany. ... Ventimiglia (Fr. ... For other uses, see United States (disambiguation) and US (disambiguation). ... Stuttgart, a city located in southern Germany, is the capital of the state of Baden-Württemberg with a population of approximately 590,000 as of September 2005 in the city and around 3 million in the metropolitan area. ...

His main work, Die Agaven, published in 1915, described 274 species of agave, divided into 3 subgenera, Littaea, Euagave and Manfreda. He also recognised a new genus of cactus, Roseocactus, in 1925. Species Manfreda longiflora Manfreda maculosa Manfreda sileri Manfreda variegata Manfreda virginica Manfreda (Salisbury) is a genus of about 20 species of plants in the family Agavaceae. ...

The genera Bergerocactus (Cactaceae)and Bergeranthus (Mesembryanthemaceae) are named in his honour. See genus (mathematics) for the use of the term in mathematics. ... Species The cactus genus Bergerocactus, named after Alwin Berger, is constituted by only 1 species (). Description This species is frail, appear in clusters, has upto 20 ribs and ramifications. ... This article is about the desert plant. ...

External links

• A Study of the Proposed Genus Roseocactus
• Bergeranthus
• Hanbury Garden (in Italian