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Datisca Nepalensis
''Datisca cannabina'', called false hemp, is a species of flowering plant in the genus ''Datisca'', family Datiscaceae, native to the Aegean Islands, Crete, Cyprus, Anatolia, the Levant, the Transcaucasus, Iraq, Iran, Central Asia, Afghanistan, Pakistan, the western Himalayas and Nepal. It is one of the very few species known to have true androdioecy Androdioecy is a reproductive system characterized by the coexistence of males and hermaphrodites. Androdioecy is rare in comparison with the other major reproductive systems: dioecy, gynodioecy and hermaphroditism. In animals, androdioecy has bee ..., meaning it has a mix of male and hermaphroditic individuals. Local artisans use its roots to produce a fast yellow dye. File:Datisca cannabina 001.JPG, Growth form File:Datisca cannabina.jpg, Top File:Datisca cannabina fruits.jpg, In fruit File:Datisca cannabina seeds, by Omar Hoftun.jpg, Seeds References Datiscaceae Taxa named by Carl Linnaeus Plants described in 1753 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Datisca
The Datiscaceae are a family of dicotyledonous plants, containing two species of the genus ''Datisca''. Two other genera, ''Octomeles'' and ''Tetrameles'', are now classified in the family Tetramelaceae. Datiscaceae are large herbaceous plants, with alternate and pinnate leaves. They are actinorhizal plants, that host nitrogen-fixing bacteria in their roots, and are the only ones that are non-woody, although non-actinorrhizal plants also fix nitrogen, such as the legumes. Species The genus ''Datisca'' contains two or three species; two from Asia and one from North America. The species ''Datisca cannabina'' is found in Crete and Turkey, and closely related ''Datisca nepalensis'' is found in the Himalayas, and is sometimes included in ''D. cannabina''. It grows to about 2.0 m tall, and in May to August it produces small greenish-yellow flowers. This species is strictly dioecious, with male and female flowers on different plants. It is grown for ornamental foliage and can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Datiscaceae
The Datiscaceae are a family of dicotyledonous plants, containing two species of the genus ''Datisca''. Two other genera, ''Octomeles'' and ''Tetrameles'', are now classified in the family Tetramelaceae. Datiscaceae are large herbaceous plants, with alternate and pinnate leaves. They are actinorhizal plants, that host nitrogen-fixing bacteria in their roots, and are the only ones that are non-woody, although non-actinorrhizal plants also fix nitrogen, such as the legumes. Species The genus ''Datisca'' contains two or three species; two from Asia and one from North America. The species ''Datisca cannabina'' is found in Crete and Turkey, and closely related ''Datisca nepalensis'' is found in the Himalayas, and is sometimes included in ''D. cannabina''. It grows to about 2.0 m tall, and in May to August it produces small greenish-yellow flowers. This species is strictly dioecious, with male and female flowers on different plants. It is grown for ornamental foliage and can be use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Androdioecy
Androdioecy is a reproductive system characterized by the coexistence of males and hermaphrodites. Androdioecy is rare in comparison with the other major reproductive systems: dioecy, gynodioecy and hermaphroditism. In animals, androdioecy has been considered a stepping stone in the transition from dioecy to hermaphroditism, and vice versa. Androdioecy is sometimes referred to as a mixed breeding system with trioecy and gynodioecy. It is a dimorphic sexual system in plants alongside gynodioecy and dioecy. Evolution of androdioecy The fitness requirements for androdioecy to arise and sustain itself are theoretically so improbable that it was long considered that such systems do not exist. Particularly, males and hermaphrodites have to have the same fitness, in other words the same number of offspring, in order to be maintained. However, males only have offspring by fertilizing eggs or ovules of hermaphrodites, while hermaphrodites have offspring both through fertilizing eggs or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Carl Linnaeus
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
