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Euphorbia Rowlandii
''Euphorbia rowlandii'', the Levuvhu euphorbia, is a succulent member of the spurge family native to the Soutpansberg region in South Africa, and southeastern Zimbabwe. It is a medium-sized, monoecious shrub with multiple spiny blue-green photosynthetic Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in c ... stems. The species is superficially similar to '' E. waterbergensis'', and is named after the Levubu River. Description A perennial, succulent shrub of up to 2 m tall and about as wide, with trunk that rises only a bit above ground, from which many branches spread that become erect. The spine shields form a continuous hard margin along the branch angles. Habitat It is native to northern South Africa and southern Zimbabwe, where it grows on cliffs or sandstone ridges at low alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Allen Dyer
Robert Allen Dyer (21 September 1900 Pietermaritzburg – 26 October 1987 Johannesburg) was a South African botanist and taxonomist, working particularly on Amaryllidaceae and succulent plants, contributing to and editing of ''Bothalia'' and ''Flowering Plants of Africa'' and holding the office of Director of the Botanical Research Institute in Pretoria from 1944 to 1963. Education and career Attended Michaelhouse and Natal University College 1919-1923, obtaining the degrees of M.Sc. in 1923 and D.Sc. in 1937. Appointed as assistant to Selmar Schonland in Grahamstown in 1925, as well as curator of the Albany Museum Herbarium. After doing a three-year stint (1931-1934) as liaison officer with the Royal Botanic Gardens, Kew, he was transferred to the National Herbarium in Pretoria. Here he became Chief and subsequently Director from 1944 to 1963. He revived the Botanical Survey Section and started the Pretoria National Botanic Garden, as well as editing ''Bothalia'', ''The Floweri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Succulent
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meaning "juice" or "sap". Succulent plants may store water in various structures, such as leaves and stems. The water content of some succulent organs can get up to 90–95%, such as '' Glottiphyllum semicyllindricum'' and '' Mesembryanthemum barkleyii''. Some definitions also include roots, thus geophytes that survive unfavorable periods by dying back to underground storage organs may be regarded as succulents. The habitats of these water-preserving plants are often in areas with high temperatures and low rainfall, such as deserts, but succulents may be found even in alpine ecosystems growing in rocky soil. Succulents are characterized by their ability to thrive on limited water sources, such as mist and dew, which makes them equipped to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soutpansberg
The Soutpansberg, (formerly ''Zoutpansberg'') meaning "Salt Pan Mountain" in Afrikaans, is a Mountain range, range of mountains in far northern South Africa. It is located in Vhembe District Municipality, Vhembe District, Limpopo. It is named for the Salt pan (geology), salt pan ( ve, Thavha ya muno, or "place of salt") located at its western end. The mountain range reaches the opposite extremity in the Matikwa Nature Reserve, some due east. The range as a whole had no Venda language, Venda name, as it was instead known by its sub-ranges which include Dzanani, Hanglip, Songozwi and others. Of late it is however known as Tha vhani ya muno, meaning "mountain of salt". The Soutpansberg forms part of the 'Vhembe Biosphere Reserve', which was designated as a biosphere reserve by UNESCO in 2009. The latter reserve also includes the Blouberg Range, Kruger National Park, Makgabeng Plateau, Makuleke Wetlands and the Mapungubwe Cultural Landscape. Geography The mountain is intersected by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zimbabwe
Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Mozambique to the east. The capital and largest city is Harare. The second largest city is Bulawayo. A country of roughly 15 million people, Zimbabwe has 16 official languages, with English, Shona language, Shona, and Northern Ndebele language, Ndebele the most common. Beginning in the 9th century, during its late Iron Age, the Bantu peoples, Bantu people (who would become the ethnic Shona people, Shona) built the city-state of Great Zimbabwe which became one of the major African trade centres by the 11th century, controlling the gold, ivory and copper trades with the Swahili coast, which were connected to Arab and Indian states. By the mid 15th century, the city-state had been abandoned. From there, the Kingdom of Zimbabwe was established, fol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thorns, Spines, And Prickles
In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called ''spinose teeth'' or ''spinose apical processes''), are hard, rigid extensions or modifications of leaves, roots, stems or buds with sharp, stiff ends, and generally serve the same function: physically deterring animals from eating the plant material. Description In common language the terms are used more or less interchangeably, but in botanical terms, thorns are derived shoots (so that they may or may not be branched, they may or may not have leaves, and they may or may not arise from a bud),Simpson, M. G. 2010. "Plant Morphology". In: ''Plant Systematics, 2nd. edition''. Elsevier Academic Press. Chapter 9.Judd, Campbell, Kellogg, Stevens, Donoghue. 2007. "Structural and Biochemical Characters". In: ''Plant Systematics, a phylogenetic approach, third edition''. Chapter 4. spines are derived from leaves (either the entire leaf or some part of the leaf that has vascular bundles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water – hence the name ''photosynthesis'', from the Greek ''phōs'' (), "light", and ''synthesis'' (), "putting together". Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth. Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centers that contain green chlorophyll (and other colored) pigments/chromoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbia Waterbergensis
''Euphorbia'' is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae (in deference to the type genus), not just to members of the genus. Euphorbias range from tiny annual plants to large and long-lived trees. The genus has roughly 2,000 members, making it one of the largest genera of flowering plants. It also has one of the largest ranges of chromosome counts, along with ''Rumex'' and '' Senecio''. '' Euphorbia antiquorum'' is the type species for the genus ''Euphorbia''. It was first described by Carl Linnaeus in 1753 in ''Species Plantarum''. Some euphorbias are widely available commercially, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant ('' Euphorbia m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levubu River
The Levubu River or Levuvhu ( ts, Rivubye; ve, Luvuvhu) is located in the northern Limpopo province of South Africa. Some of its tributaries, such as the Mutshindudi River and Mutale River rise in the Soutpansberg Mountains. The Luvuvhu River flows for about 200 km through a diverse range of landscapes before it joins the Limpopo River in the Fever Tree Forest area, near Pafuri in the Kruger National Park. A Zambezi shark (''Carcharhinus leucas'') was caught at the confluence of the Limpopo and Luvuvhu Rivers in July 1950. Zambezi sharks tolerate fresh water and can travel far up rivers like the Limpopo. The river's crocodile population extends to its upper reaches at Thohoyandou. Dams * Albasini Dam * Mambedi Dam * Tshakhuma Dam * Damani Dam * Nandoni Dam, previously known as the Mutoti Dam, in the middle section of the Luvuvhu River east of the confluence with the Dzindi River tributary and east of the town Thohoyandou * Vondo Dam in the Mutshindudi River, a tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbia Confinalis
''Euphorbia'' is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae (in deference to the type genus), not just to members of the genus. Euphorbias range from tiny annual plants to large and long-lived trees. The genus has roughly 2,000 members, making it one of the largest genera of flowering plants. It also has one of the largest ranges of chromosome counts, along with ''Rumex'' and ''Senecio''. ''Euphorbia antiquorum'' is the type species for the genus ''Euphorbia''. It was first described by Carl Linnaeus in 1753 in ''Species Plantarum''. Some euphorbias are widely available commercially, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant (''Euphorbia milii''). S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Makuleke
The Makuleke Contractual Park or Pafuri Triangle constitutes the northernmost section of the Kruger National Park, South Africa, and comprises approximately 240 square kilometres of land. The "triangle" is a wedge of land created by the confluence of the Limpopo and Luvuvhu Rivers at the tripoint Crook's Corner, which forms a border with Zimbabwe along the Limpopo River. It is a natural choke point for wildlife crossing from North to South and back, and forms a distinct ecological region. Pafuri (Tsonga) is derived from Mphaphuli, the dynastic name of Venda chieftains who ruled locally, while the Luvuvhu River is named after a ''Combretum'' tree (Venda: ''muvuvhu'', Tsonga Rivubye) growing on its banks. Geological history The Makuleke region carries a remarkable geological and natural heritage that makes this region of interest to geographers and historians. Some rocks in the area have been dated to over 250 million years old. In the bottom of Lanner Gorge are rocks that appear t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbia
''Euphorbia'' is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae (in deference to the type genus), not just to members of the genus. Euphorbias range from tiny annual plants to large and long-lived trees. The genus has roughly 2,000 members, making it one of the largest genera of flowering plants. It also has one of the largest ranges of chromosome counts, along with ''Rumex'' and ''Senecio''. ''Euphorbia antiquorum'' is the type species for the genus ''Euphorbia''. It was first described by Carl Linnaeus in 1753 in ''Species Plantarum''. Some euphorbias are widely available commercially, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant (''Euphorbia milii''). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Succulent Euphorbias
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meaning "juice" or "sap". Succulent plants may store water in various structures, such as leaves and stems. The water content of some succulent organs can get up to 90–95%, such as '' Glottiphyllum semicyllindricum'' and '' Mesembryanthemum barkleyii''. Some definitions also include roots, thus geophytes that survive unfavorable periods by dying back to underground storage organs may be regarded as succulents. The habitats of these water-preserving plants are often in areas with high temperatures and low rainfall, such as deserts, but succulents may be found even in alpine ecosystems growing in rocky soil. Succulents are characterized by their ability to thrive on limited water sources, such as mist and dew, which makes them equipped to su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
