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Garden Pansy
The garden pansy (''Viola'' × ''wittrockiana'') is a type of large-flowered hybrid plant cultivated as a garden flower. It is derived by hybridization from several species in the section ''Melanium'' ("the pansies") of the genus ''Viola'', particularly ''Viola tricolor'', a wildflower of Europe and western Asia known as heartsease. It is sometimes known as ''Viola tricolor'' var. ''hortensis'', but this scientific name is ambiguous. While ''Viola tricolor'' var. ''hortensis'' Groenland & Rümpler is a synonym of ''Viola'' × ''wittrockiana'', ''Viola tricolor'' var. ''hortensis'' DC. refers to a horticultural variety of wild pansy (''Viola tricolor'' without interspecific hybridization) that had been illustrated in ''Flora Danica'' in 1777 before the existence of ''Viola'' × ''wittrockiana''. The chromosome number of ''Viola'' × ''wittrockiana'' is 2n = 44–52, with most cultivars being 2n = 48. The flower is in diameter and has two slightly overlapping upper petals, tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helmut Gams
Helmut Gams (1893–1976) was a central European botanist. Born in Brno, he moved to Zürich as a child. He studied at the University of Zurich, being awarded a PhD in 1918. During his career, he worked at the University of Munich and the University of Innsbruck. His research saw him pursue fieldwork around Europe and Asia. He was a geobotanist who specialized in the associations of different species of mosses and lichens with each other and the environment. Gams coined the terms ' biocoenology' and ' phytocoenology' in his 1918 PhD thesis.Rabotnov TA. 1970-1979Phytocoenology.In: The Great Soviet Encyclopedia, 3rd ed. Two species named after Gams are '' Phacus gamsii'' and ''Rumex gamsii The docks and sorrels, genus ''Rumex'', are a genus of about 200 species of annual, biennial, and perennial herbs in the buckwheat family, Polygonaceae. Members of this genus are very common perennial herbs with a native almost worldwide distrib ...''. References 1893 births 1976 deaths ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
