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Corsia Huonensis
''Corsia'' is a little-studied plant genus from the monocotyledon family Corsiaceae. It was first described in 1877 by Italian naturalist Odoardo Beccari and contains 25 species, all of which lack chlorophyll and parasitize fungi for nutrition. All 25 species are distributed through New Guinea, the Bismarck Archipelago, the Solomon Islands and Queensland, Australia. Description In terms of appearance, the species of ''Corsia'' are quite uniform except for the flowers.Paul Kores, David A. White, Leonard B. Thien: ''Chromosomes of Corsia (Corsiaceae)'', American Journal of Botany, Vol. 65, No. 5 (May - Jun., 1978), Page. 584-585, Chromosome counts are known only from two species: ''Corsia cornuta'' and ''C. clypeata''. Both have a diploid number (''2n'') of 18. Habit ''Corsia'' exist largely underground; only the seldom-formed flower stems develop above ground. The fine, thread-like and hairless root system is weakly branched and whitish, spreading widely just beneath the surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird's Head Peninsula
The Bird's Head Peninsula ( Indonesian: ''Kepala Burung'', nl, Vogelkop) or Doberai Peninsula (''Semenanjung Doberai''), is a large peninsula that makes up the northwest portion of the island of New Guinea, comprising the Indonesian provinces of Southwest Papua and West Papua. The peninsula just to the south is called the Bomberai Peninsula, while the peninsula at the opposite end of the island (in Papua New Guinea) is called the Bird's Tail Peninsula. Location and geography The Bird's Head Peninsula is at the northwestern end of the island of New Guinea. It is bounded by Cenderawasih Bay to the east, Bintuni Bay to the south, and the Dampier Strait to the west. Across the strait is Waigeo, an island in the Raja Ampat archipelago. Batanta island lies just off the peninsula’s northwest tip. Another peninsula, Bomberai Peninsula, lies to the south, across Bintuni Bay. The peninsula is around 200 by 300 kilometers, and is bio-geographically diverse, containing coastal plain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karyology
A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is discerned by determining the chromosome complement of an individual, including the number of chromosomes and any abnormalities. A karyogram or idiogram is a graphical depiction of a karyotype, wherein chromosomes are organized in pairs, ordered by size and position of centromere for chromosomes of the same size. Karyotyping generally combines light microscopy and photography, and results in a photomicrographic (or simply micrographic) karyogram. In contrast, a schematic karyogram is a designed graphic representation of a karyotype. In schematic karyograms, just one of the sister chromatids of each chromosome is generally shown for brevity, and in reality they are generally so close together that they look as one on photomicrographs as well u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corsia Ornata Seeds
''Corsia'' is a little-studied plant genus from the monocotyledon family Corsiaceae. It was first described in 1877 by Italian naturalist Odoardo Beccari and contains 25 species, all of which lack chlorophyll and parasitize fungi for nutrition. All 25 species are distributed through New Guinea, the Bismarck Archipelago, the Solomon Islands and Queensland, Australia. Description In terms of appearance, the species of ''Corsia'' are quite uniform except for the flowers.Paul Kores, David A. White, Leonard B. Thien: ''Chromosomes of Corsia (Corsiaceae)'', American Journal of Botany, Vol. 65, No. 5 (May - Jun., 1978), Page. 584-585, Chromosome counts are known only from two species: ''Corsia cornuta'' and ''C. clypeata''. Both have a diploid number (''2n'') of 18. Habit ''Corsia'' exist largely underground; only the seldom-formed flower stems develop above ground. The fine, thread-like and hairless root system is weakly branched and whitish, spreading widely just beneath the surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corsia Ornata Fruits
''Corsia'' is a little-studied plant genus from the monocotyledon family Corsiaceae. It was first described in 1877 by Italian naturalist Odoardo Beccari and contains 25 species, all of which lack chlorophyll and parasitize fungi for nutrition. All 25 species are distributed through New Guinea, the Bismarck Archipelago, the Solomon Islands and Queensland, Australia. Description In terms of appearance, the species of ''Corsia'' are quite uniform except for the flowers.Paul Kores, David A. White, Leonard B. Thien: ''Chromosomes of Corsia (Corsiaceae)'', American Journal of Botany, Vol. 65, No. 5 (May - Jun., 1978), Page. 584-585, Chromosome counts are known only from two species: ''Corsia cornuta'' and ''C. clypeata''. Both have a diploid number (''2n'') of 18. Habit ''Corsia'' exist largely underground; only the seldom-formed flower stems develop above ground. The fine, thread-like and hairless root system is weakly branched and whitish, spreading widely just beneath the surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homology (biology)
In biology, homology is similarity due to shared ancestry between a pair of structures or genes in different taxa. A common example of homologous structures is the forelimbs of vertebrates, where the wings of bats and birds, the arms of primates, the front flippers of whales and the forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure. Evolutionary biology explains homologous structures adapted to different purposes as the result of descent with modification from a common ancestor. The term was first applied to biology in a non-evolutionary context by the anatomist Richard Owen in 1843. Homology was later explained by Charles Darwin's theory of evolution in 1859, but had been observed before this, from Aristotle onwards, and it was explicitly analysed by Pierre Belon in 1555. In developmental biology, organs that developed in the embryo in the same manner and from similar origins, such as from matching p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchidaceae
Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Along with the Asteraceae, they are one of the two largest families of flowering plants. The Orchidaceae have about 28,000 currently accepted species, distributed in about 763 genera. (See ''External links'' below). The determination of which family is larger is still under debate, because verified data on the members of such enormous families are continually in flux. Regardless, the number of orchid species is nearly equal to the number of bony fishes, more than twice the number of bird species, and about four times the number of mammal species. The family encompasses about 6–11% of all species of seed plants. The largest genera are ''Bulbophyllum'' (2,000 species), ''Epidendrum'' (1,500 species), ''Dendrobium'' (1,400 species) and ''Pleurothallis'' (1,000 species). It also includes ''Vanilla'' (the genus of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Section (botany)
In botany, a section ( la, sectio) is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections may in turn be divided into subsections.Article 4 in Sections are typically used to help organise very large genera, which may have hundreds of species. A botanist wanting to distinguish groups of species may prefer to create a taxon at the rank of section or series to avoid making new combinations, i.e. many new binomial names for the species involved. Examples: * ''Lilium'' sectio ''Martagon'' Rchb. are the Turks' cap lilies * ''Plagiochila aerea'' Taylor is the type species of ''Plagiochila'' sect. ''Bursatae'' See also * Section (biology) References Section Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labellum (botany)
In botany, the labellum (or lip) is the part of the flower of an orchid or '' Canna'', or other less-known genera, that serves to attract insects, which pollinate the flower, and acts as a landing platform for them. ''Labellum'' (plural: ''labella'') is the Latin diminutive of ''labrum'', meaning lip. The labellum is a modified petal and can be distinguished from the other petals and from the sepals by its large size and its often irregular shape. It is not unusual for the other two petals of an orchid flower to look like the sepals, so that the labellum stands out as distinct. Bailey, L. H. ''Gentes Herbarum: Canna x orchiodes''. (Ithaca), 1 (3): 120 (1923); Khoshoo, T. N. & Guha, I. ''Origin and Evolution of Cultivated Cannas.'' Vikas Publishing House. In orchids, the labellum is the modified median petal that sits opposite from the fertile anther and usually highly modified from the other perianth segments. It is often united with the column and can be hinged or movable, fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tepal
A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very similar appearance), as in ''Magnolia'', or because, although it is possible to distinguish an outer whorl of sepals from an inner whorl of petals, the sepals and petals have similar appearance to one another (as in ''Lilium''). The term was first proposed by Augustin Pyramus de Candolle in 1827 and was constructed by analogy with the terms "petal" and "sepal". (De Candolle used the term ''perigonium'' or ''perigone'' for the tepals collectively; today, this term is used as a synonym for ''perianth''.) p. 39. Origin Undifferentiated tepals are believed to be the ancestral condition in flowering plants. For example, '' Amborella'', which is thought to have separated earliest in the evolution of flowering plants, has flowers with undiffer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygomorphic
Floral symmetry describes whether, and how, a flower, in particular its perianth, can be divided into two or more identical or mirror-image parts. Uncommonly, flowers may have no axis of symmetry at all, typically because their parts are spirally arranged. Actinomorphic Most flowers are actinomorphic ("star shaped", "radial"), meaning they can be divided into 3 or more identical sectors which are related to each other by rotation about the center of the flower. Typically, each sector might contain one tepal or one petal and one sepal and so on. It may or may not be possible to divide the flower into symmetrical halves by the same number of longitudinal planes passing through the axis: Oleander is an example of a flower without such mirror planes. Actinomorphic flowers are also called radially symmetrical or regular flowers. Other examples of actinomorphic flowers are the lily (''Lilium'', Liliaceae) and the buttercup (''Ranunculus'', Ranunculaceae). Zygomorphic Zygomorp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abzug Infloreszenz Ausschnitt Blüte
Bella Savitzky Abzug (July 24, 1920 – March 31, 1998), nicknamed "Battling Bella", was an American lawyer, politician, social activist, and a leader in the women's movement. In 1971, Abzug joined other leading feminists such as Gloria Steinem, Shirley Chisholm, and Betty Friedan to found the National Women's Political Caucus. She was a leading figure in what came to be known as eco-feminism. In 1970, Abzug's first campaign slogan was, "This woman's place is in the House—the House of Representatives." She was later appointed to co-chair the National Commission on the Observance of International Women's Year created by President Gerald Ford's executive order, presided over the 1977 National Women's Conference, and led President Jimmy Carter's National Advisory Commission for Women. Abzug was a founder of the Commission for Women’s Equality of the American Jewish Congress. Early life Bella Savitzky was born on July 24, 1920, in New York City. Both of her parents were Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
