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Chaetobromus
''Chaetobromus'' is a genus of African plants in the grass family. ; Species There is only one known species, ''Chaetobromus involucratus'', native to Namibia and Cape Province.Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria ; Subspecies Three subspecies are accepted * ''Chaetobromus involucratus'' subsp. ''dregeanus'' (Nees) Verboom * ''Chaetobromus involucratus'' subsp. ''involucratus'' * ''Chaetobromus involucratus'' subsp. ''sericeus'' (Nees) Verboom ; Formerly included taxa once considered part of ''Chaetobromus'' but now regarded as better suited to ''Tenaxia'' : * ''Chaetobromus fascicularis - Tenaxia stricta'' * ''Chaetobromus strictus - Tenaxia stricta'' See also * List of Poaceae genera The true grasses ( Poaceae) are one of the largest plant families, with around 12,000 species and roughly 800 genera. They contain, among others, the cereal crop s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danthonioideae
Danthonioideae is a mainly southern hemisphere subfamily of grasses, containing the single tribe Danthonieae and one unplaced genus, with altogether roughly 300 species. It includes herbaceous to partially woody perennial or annual (less common) grasses that grow in open grasslands, shrublands, and woodlands. It belongs to the PACMAD clade of grasses, but unlike some other lineages in that clade, grasses in the Danthonioideae exclusively use the C3 photosynthetic pathway. Its sister group is the subfamily Chloridoideae. There are 19 genera, 18 of which are placed in tribe Danthonieae, while one is as yet unplaced (''incertae sedis''). The relationships within the group are complicated; conflicting phylogenetic evidence from nuclear and chloroplast DNA suggests that hybridisation events played an important role in the Danthonioideae. *''incertae sedis'': *: ''Danthonidium'' * tribe Danthonieae: *: ''Austroderia'', ''Capeochloa'', '' Chaetobromus'', '' Chimaerochloa'', '' Chiono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Poaceae Genera
The true grasses ( Poaceae) are one of the largest plant families, with around 12,000 species and roughly 800 genera. They contain, among others, the cereal crop species and other plants of economic importance, such as the bamboos, and several important weeds. Grasses probably originated in the understory of tropical rainforests in the Late Cretaceous, but have since come to occupy a wide range of different habitats. Notably, they are the dominant species in grasslands, open habitats that cover around one fifth of the earth's terrestrial surface. The C4 photosynthetic pathway has evolved at least 22 times independently in the grasses; C4 species are more competitive than C3 plants in open habitats with high light intensity and warm temperatures. The deeper relationships in the family have been resolved by recent molecular phylogenetic work. This has been translated into a modern classification which divides the grasses into twelve subfamilies and a number of tribes, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Gottfried Daniel Nees Von Esenbeck
Christian Gottfried Daniel Nees von Esenbeck (14 February 1776 – 16 March 1858) was a prolific German botanist, physician, zoologist, and natural philosopher. He was a contemporary of Goethe and was born within the lifetime of Linnaeus. He described approximately 7,000 plant species (almost as many as Linnaeus himself). His last official act as president of the German Academy of Natural Scientists Leopoldina was to admit Charles Darwin as a member. He was the author of numerous monographs on botany and zoology. His best-known works deal with fungi. Biography Nees von Esenbeck was born in Schloss Reichenberg near Reichelsheim (Odenwald). He showed an early interest in science and, after receiving his primary education in Darmstadt, he went on to the University of Jena, obtaining his degree in biology (natural history) and medicine in 1800. He practiced as a physician for Francis I (Erbach-Erbach), but he had developed a great interest in botany during his university studies, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poaceae
Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and pasture. The latter are commonly referred to collectively as grass. With around 780 genera and around 12,000 species, the Poaceae is the fifth-largest plant family, following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae. The Poaceae are the most economically important plant family, providing staple foods from domesticated cereal crops such as maize, wheat, rice, barley, and millet as well as feed for meat-producing animals. They provide, through direct human consumption, just over one-half (51%) of all dietary energy; rice provides 20%, wheat supplies 20%, maize (corn) 5.5%, and other grains 6%. Some members of the Poaceae are used as building materials (bamboo, thatch, and straw); others can provide a source of biofuel, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namibia
Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and east. Although Kazungula, it does not border Zimbabwe, less than 200 metres (660 feet) of the Botswanan right bank of the Zambezi, Zambezi River separates the two countries. Namibia gained independence from South Africa on 21 March 1990, following the Namibian War of Independence. Its capital and largest city is Windhoek. Namibia is a member state of the United Nations (UN), the Southern African Development Community (SADC), the African Union (AU) and the Commonwealth of Nations. The driest country in sub-Saharan Africa, Namibia has been inhabited since pre-historic times by the San people, San, Damara people, Damara and Nama people. Around the 14th century, immigration, immigrating Bantu peoples arrived as part of the Bantu expansion. Since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Province
The Province of the Cape of Good Hope ( af, Provinsie Kaap die Goeie Hoop), commonly referred to as the Cape Province ( af, Kaapprovinsie) and colloquially as The Cape ( af, Die Kaap), was a province in the Union of South Africa and subsequently the Republic of South Africa. It encompassed the old Cape Colony, as well as Walvis Bay, and had Cape Town as its capital. In 1994, the Cape Province was divided into the new Eastern Cape, Northern Cape and Western Cape provinces, along with part of the North West. History When the Union of South Africa was formed in 1910, the original Cape Colony was renamed the Cape Province. It was by far the largest of South Africa's four provinces, as it contained regions it had previously annexed, such as British Bechuanaland (not to be confused with the Bechuanaland Protectorate, now Botswana), Griqualand East (the area around Kokstad) and Griqualand West (area around Kimberley). As a result, it encompassed two-thirds of South Africa's terr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenaxia
''Tenaxia'' is a genus of Asian and African plants in the grass family. ; Species * ''Tenaxia aureocephala'' (J.G.Anderson) N.P.Barker & H.P.Linder - KwaZulu-Natal * ''Tenaxia cachemyriana'' (Jaub. & Spach) N.P.Barker & H.P.Linder - Afghanistan, Tibet, Tajikistan, Jammu and Kashmir, Nepal, Uttarakhand, Himachal Pradesh * ''Tenaxia cumminsii'' (Hook.f.) N.P.Barker & H.P.Linder - Pakistan, Jammu and Kashmir, Nepal, Uttarakhand, Himachal Pradesh * ''Tenaxia disticha'' (Nees) N.P.Barker & H.P.Linder - Zimbabwe, Cape Province, Lesotho, KwaZulu-Natal, Free State * ''Tenaxia dura'' (Stapf) N.P.Barker & H.P.Linder - Cape Province * ''Tenaxia guillarmodiae'' (Conert) N.P.Barker & H.P.Linder - Lesotho, KwaZulu-Natal, Free State * ''Tenaxia stricta'' (Schrad.) N.P.Barker & H.P.Linder - KwaZulu-Natal, Lesotho, Namibia, Cape Province * ''Tenaxia subulata'' (A.Rich.) N.P.Barker & H.P.Linder - Ethiopia, Yemen See also * List of Poaceae genera The true grasses ( Poaceae) are one of the larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenaxia Stricta
''Tenaxia'' is a genus of Asian and African plants in the grass family. ; Species * ''Tenaxia aureocephala'' (J.G.Anderson) N.P.Barker & H.P.Linder - KwaZulu-Natal * ''Tenaxia cachemyriana'' (Jaub. & Spach) N.P.Barker & H.P.Linder - Afghanistan, Tibet, Tajikistan, Jammu and Kashmir, Nepal, Uttarakhand, Himachal Pradesh * ''Tenaxia cumminsii'' (Hook.f.) N.P.Barker & H.P.Linder - Pakistan, Jammu and Kashmir, Nepal, Uttarakhand, Himachal Pradesh * ''Tenaxia disticha'' (Nees) N.P.Barker & H.P.Linder - Zimbabwe, Cape Province, Lesotho, KwaZulu-Natal, Free State * ''Tenaxia dura'' (Stapf) N.P.Barker & H.P.Linder - Cape Province * ''Tenaxia guillarmodiae'' (Conert) N.P.Barker & H.P.Linder - Lesotho, KwaZulu-Natal, Free State * ''Tenaxia stricta'' (Schrad.) N.P.Barker & H.P.Linder - KwaZulu-Natal, Lesotho, Namibia, Cape Province * ''Tenaxia subulata'' (A.Rich.) N.P.Barker & H.P.Linder - Ethiopia, Yemen See also * List of Poaceae genera The true grasses ( Poaceae) are one of the larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grasses Of Africa
Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and pasture. The latter are commonly referred to collectively as grass. With around 780 genera and around 12,000 species, the Poaceae is the fifth-largest plant family, following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae. The Poaceae are the most economically important plant family, providing staple foods from domesticated cereal crops such as maize, wheat, rice, barley, and millet as well as feed for meat-producing animals. They provide, through direct human consumption, just over one-half (51%) of all dietary energy; rice provides 20%, wheat supplies 20%, maize (corn) 5.5%, and other grains 6%. Some members of the Poaceae are used as building materials (bamboo, thatch, and straw); others can provide a source of biofuel, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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