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Disa Tripetaloides
''Disa tripetaloides'' is a species of orchid that grows along the edges of streams in South Africa. This is one of the smaller species in the genus '' Disa'' in the section ''Disa''. There are populations that come from the winter-rainfall areas of South Africa, and summer-rainfall areas of South Africa. It is also one of the four commonly grown species of ''Disa'' in cultivation. The other three being ''Disa aurata'', ''Disa cardinalis ''Disa cardinalis'' is a species of orchid found in South Africa ( S. Cape Prov. - Riversdale). References External links * * * cardinalis Orchids of South Africa {{Orchidoideae-stub ...'', and '' Disa uniflora''. ''Disa tripetaloides'' is able to reproduce sexually and asexually. Asexual reproduction occurs by means of creating offshoots along the base of the plant and on stolons. References External links * * * tripetaloides Endemic orchids of South Africa Taxa named by N. E. Brown Taxa named by Carl Linnaeus th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus The Younger
Carl Linnaeus the Younger, Carolus Linnaeus the Younger, Carl von Linné den yngre (Swedish; abbreviated Carl von Linné d. y.), or ''Linnaeus filius'' ( Latin for ''Linnaeus the son''; abbreviated L.fil. (outdated) or L.f. (modern) as a botanical authority; 20 January 1741 – 1 November 1783) was a Swedish naturalist. His names distinguish him from his father, the pioneering taxonomist Carl Linnaeus (1707–1778). Biography Carl Linnaeus the Younger was enrolled at the University of Uppsala at the age of nine and was taught science by his father's students, including Pehr Löfling, Daniel Solander, and Johan Peter Falk. In 1763, aged just 22, he succeeded his father as the head of Practical Medicine at Uppsala. His promotion to professor — without taking exams or defending a thesis — caused resentment among his colleagues. His work was modest in comparison to that of his father. His best-known work is the ''Supplementum Plantarum systematis vegetabilium'' of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disa (plant)
''Disa'' is a genus of flowering plants in the family Orchidaceae. It comprises about 182 species. Most of the species are indigenous to tropical and southern Africa, with a few more in the Arabian Peninsula, Madagascar, and Réunion.Hans Peter Linder and Hubert Kurzweil. 1999. ''Orchids of Southern Africa''. 504 pages. A. A. Balkema. . '' Disa bracteata'' is naturalised in Western Australia, where the local name is "African weed-orchid." The genus ''Disa'' was named by P.J. Bergius in 1767.Peter Jonas Bergius. 1767. ''Descriptiones Plantarum ex Capite Bonae Spei'': 348. (See ''External links'' below). It was named after Disa, the heroine of a Swedish legend.Umberto Quattrocchi. 2000. ''CRC World Dictionary of Plant Names'' volume II. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. (vol. II). (see ''External links'' below). Description The plants grow from a fleshy tuberous root which is a source of maltodextrins which are used as a sugar substitute. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Orchids Of South Africa
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asexual Reproduction
Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent and thus the newly created individual is genetically and physically similar to the parent or an exact clone of the parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria. Many eukaryotic organisms including plants, animals, and fungi can also reproduce asexually. In vertebrates, the most common form of asexual reproduction is parthenogenesis, which is typically used as an alternative to sexual reproduction in times when reproductive opportunities are limited. Komodo dragons and some monitor lizards can also reproduce asexually. While all prokaryotes reproduce without the formation and fusion of gametes, mechanisms for lateral g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Reproduction
Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete ( haploid reproductive cells, such as a sperm or egg cell) with a single set of chromosomes combines with another gamete to produce a zygote that develops into an organism composed of cells with two sets of chromosomes ( diploid). This is typical in animals, though the number of chromosome sets and how that number changes in sexual reproduction varies, especially among plants, fungi, and other eukaryotes. Sexual reproduction is the most common life cycle in multicellular eukaryotes, such as animals, fungi and plants. Sexual reproduction also occurs in some unicellular eukaryotes. Sexual reproduction does not occur in prokaryotes, unicellular organisms without cell nuclei, such bacteria and archaea. However, some process in bacteria may be considered analogous to sexual reproduction in that they incorporate new genetic information, including bacterial conjugation, transf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disa Uniflora
''Disa uniflora'', the red disa or pride of Table Mountain, is a South African species of orchid in the family ''Orchidaceae''. It is the type species of the genus ''Disa'', and one of its best-known members. It is occasionally referred to by its old name ''Disa grandiflora''. Distribution Its range is restricted to the Sandstone Mountains of the South Western Cape, South Africa, west of Hermanus to Table Mountain and northwards into the Cederberg Mountains. It is common on Table Mountain, and the Back Table, but is rarely seen further south on the Cape Peninsula. The orchid grows near waterfalls, streamlets, and seeps in the mountains. It is, however, never found along the shores of dams whose water levels vary considerably during the year. Description It is a fairly stout perennial 15 – 60 cm in height, spreading by stolons. The leaves are lance shaped, the lower ones spreading or semi-erect up to 25 cm long. The inflorescence is 1-3 flowered. The blooms a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disa Cardinalis
''Disa cardinalis'' is a species of orchid found in South Africa ( S. Cape Prov. - Riversdale). References External links * * * cardinalis Orchids of South Africa {{Orchidoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disa Aurata
''Disa aurata'' is a species of orchid found in Swellendam area of Cape Province, South Africa at elevations of 0 – 1000 meters. References External links * * * * Disa (plant), aurata Orchids of South Africa {{Orchidoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over 60 million people, the country is the world's 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein, and Cape Town respectively. The largest city is Johannesburg. About 80% of the population are Black Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thunb
Carl Peter Thunberg, also known as Karl Peter von Thunberg, Carl Pehr Thunberg, or Carl Per Thunberg (11 November 1743 – 8 August 1828), was a Swedish naturalist and an "apostle" of Carl Linnaeus. After studying under Linnaeus at Uppsala University, he spent seven years travelling in southern Africa and Asia, collecting and describing many plants and animals new to European science, and observing local cultures. He has been called "the father of South African botany", "pioneer of Occidental Medicine in Japan", and the "Japanese Linnaeus". Early life Thunberg was born and grew up in Jönköping, Sweden. At the age of 18, he entered Uppsala University where he was taught by Carl Linnaeus, regarded as the "father of modern taxonomy". Thunberg graduated in 1767 after 6 years of studying. To deepen his knowledge in botany, medicine and natural history, he was encouraged by Linnaeus in 1770 to travel to Paris and Amsterdam. In Amsterdam and Leiden Thunberg met the Dutch botanis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchid
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 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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