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Rhododendron Discolor
''Rhododendron discolor'' (喇叭杜鹃) is a rhododendron species native to many regions of China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ..., where it grows at altitudes of . It is a shrub or small tree that grows to in height, with leathery leaves that are oblong- elliptic or oblong-lanceolate, and 9.5–18 × 2.4–5.4 cm in size. The flowers are pale pink to white. According to Flora of China, "''Rhododendron discolor'' intergrades with ''R. fortunei'', and can reliably be separated from that species only by the proportionately narrower leaves." Rhododendron discolor (Rhododendron fortunei subsp. discolor) - VanDusen Botanical Garden - Vancouver, BC - DSC07341.jpg Rhododendron fortunei subsp. discolor.jpg References * Franchet, ''J. Bot.'' (Morot). 9: 391. 189 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adrien René Franchet
Adrien René Franchet (21 April 1834 in Pezou – 15 February 1900 in Paris) was a French botanist, based at the Paris Muséum national d'Histoire naturelle. He is noted for his extensive work describing the flora of China and Japan, based on the collections made by French Catholic missionaries in China, Armand David, Pierre Jean Marie Delavay, Paul Guillaume Farges, Jean-André Soulié, and others. He was the taxonomic author of many plants, including a significant number of species from the genera ''Primula'' and ''Rhododendron''. The following genera are named in his honor: * '' Franchetella'', family Sapotaceae, named by Jean Baptiste Louis Pierre. * '' Franchetia'', family Rubiaceae, named by Henri Ernest Baillon. *''Sinofranchetia'', family Lardizabalaceae, named by William Botting Hemsley. Selected writings * ''Essai sur la distribution géographique des plantes phanérogames dans le département de Loir-et-Cher'', 1868 - Essay on the geographical distributio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron
''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia. It is the national flower of Nepal, the state flower of Washington and West Virginia in the United States, the state flower of Nagaland in India, the provincial flower of Jiangxi in China and the state tree of Sikkim and Uttarakhand in India. Most species have brightly colored flowers which bloom from late winter through to early summer. Azaleas make up two subgenera of ''Rhododendron''. They are distinguished from "true" rhododendrons by having only five anthers per flower. Species Description ''Rhododendron'' is a genus of shrubs and small to (rarely) large trees, the smallest species growing to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elliptic
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. It generalizes a circle, which is the special type of ellipse in which the two focal points are the same. The elongation of an ellipse is measured by its eccentricity e, a number ranging from e = 0 (the limiting case of a circle) to e = 1 (the limiting case of infinite elongation, no longer an ellipse but a parabola). An ellipse has a simple algebraic solution for its area, but only approximations for its perimeter (also known as circumference), for which integration is required to obtain an exact solution. Analytically, the equation of a standard ellipse centered at the origin with width 2a and height 2b is: : \frac+\frac = 1 . Assuming a \ge b, the foci are (\pm c, 0) for c = \sqrt. The standard parametric equation is: : (x,y) = (a\cos(t),b\sin(t)) \quad \text \quad 0\leq t\leq 2\pi. Ellipses are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
