|
Olinia Emarginata
''Olinia emarginata'', the mountain hard pear or berghardepeer in Afrikaans language, is a tree species in the genus ''Olinia'' native to South Africa. Prunasin, a cyanogenic glucoside, can be found in the leaves of ''O. emarginata''.Occurrence of the cyanogenic glucoside prunasin and II corresponding mandelic acid amide glucoside in ''Olinia'' species (Oliniaceae). Adolf Nahrstedt and Jürgen Rockenbach, September 1993, Phytochemistry, Volume 34, Issue 2, Pages 433–436, See also * List of Southern African indigenous trees and woody lianes * Forests of KwaZulu-Natal Areas of forest which grow in KwaZulu-Natal, South Africa mostly on south facing slopes in higher rainfall areas, and along the humid coastal areas. Different types of forest can be identified by their species composition which depends mostly o ... References External links http://plants.jstor.org Penaeaceae Flora of South Africa {{Myrtales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Burtt Davy
Joseph Burtt Davy (7 March 1870 Findern, Derbyshire – 20 August 1940 Birmingham) was a Quaker botanist and agrostologist. He was the first curator of the Forest Herbarium (FHO) at the Imperial Forestry Institute when it was founded in 1924 under the Directorship of Professor Robert Scott Troup. He attended school at Ilkley in West Yorkshire. In 1891, he joined Kew Gardens as a technical assistant, leaving shortly after for the United States where he enrolled in the botany department at the University of California. Here he studied agriculture from 1893–96 and took up the post of botanist at the Agricultural Experiment Station in California between 1896–1901, describing the Cyperaceae and Gramineae for ''A Flora of Western Middle California'' by Willis Linn Jepson. Here he also met his wife-to-be, Alice Bolton (1863–1953), a native Californian. Davy wrote the pioneering work that was published in 1903, "Stock Ranges of Northwestern California: Notes on the Grasses and Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olinia Emarginata Tree - South Africa 5
''Olinia'' is a genus of small trees and shrubs with 10 species in the family Penaeaceae. The species of ''Olinia'' are native to Africa, ranging from west Africa to South Africa. It was previously regarded as the sole genus in the family Oliniaceae, but is now included in the expanded Penaeaceae along with ''Rhynchocalyx'' (formerly of the Rhynchocalycaceae) under the APG III system The APG III system of flowering plant classification is the third version of a modern, mostly molecular-based, system of plant taxonomy being developed by the Angiosperm Phylogeny Group (APG). Published in 2009, it was superseded in 2016 by a fur ... of classification. File:Olinia emarginata tree - South Africa 5.jpg, File:Olinia cymosa Thbg.jpg, References External links Afromontane flora Penaeaceae Myrtales genera {{Myrtales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afrikaans
Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans gradually began to develop distinguishing characteristics during the course of the 18th century. Now spoken in South Africa, Namibia and (to a lesser extent) Botswana, Zambia, and Zimbabwe, estimates circa 2010 of the total number of Afrikaans speakers range between 15 and 23 million. Most linguists consider Afrikaans to be a partly creole language. An estimated 90 to 95% of the vocabulary is of Dutch origin with adopted words from other languages including German and the Khoisan languages of Southern Africa. Differences with Dutch include a more analytic-type morphology and grammar, and some pronunciations. There is a large degree of mutual intelligibility between the two languages, especially in written form. About 13.5% of the South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olinia
''Olinia'' is a genus of small trees and shrubs with 10 species in the family Penaeaceae. The species of ''Olinia'' are native to Africa, ranging from west Africa to South Africa. It was previously regarded as the sole genus in the family Oliniaceae, but is now included in the expanded Penaeaceae along with ''Rhynchocalyx'' (formerly of the Rhynchocalycaceae) under the APG III system The APG III system of flowering plant classification is the third version of a modern, mostly molecular-based, system of plant taxonomy being developed by the Angiosperm Phylogeny Group (APG). Published in 2009, it was superseded in 2016 by a fur ... of classification. File:Olinia emarginata tree - South Africa 5.jpg, File:Olinia cymosa Thbg.jpg, References External links Afromontane flora Penaeaceae Myrtales genera {{Myrtales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prunasin
(''R'')-prunasin is a cyanogenic glycoside related to amygdalin. Chemically, it is the glucoside of (''R'')-mandelonitrile. Natural occurrences Prunasin is found in species in the genus ''Prunus'' such as ''Prunus japonica'' or '' P. maximowiczii'' and in bitter almonds. It is also found in leaves and stems of '' Olinia ventosa'', '' O. radiata'', '' O. emarginata'' and '' O. rochetiana'' and in ''Acacia greggii''. It is a biosynthetic precursor of and intermediate in the biosynthesis of amygdalin, the chemical compound responsible for the taste of bitter almond. It is also found in dandelion coffee, a coffee substitute. Sambunigrin Sambunigrin, a diastereomer of prunasin derived from (''S'')-mandelonitrile instead of it the (''R'')-isomer, has been isolated from leaves of the elder tree (''Sambucus nigra''). Sambunigrin is present in the leaves and stems of elder at a 1:3 ratio of sambunigrin to prunasin, and 2:5 in the immature seed. It is not found in the root. Biosynthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Southern African Indigenous Trees And Woody Lianes
This is a list of Southern African trees, shrubs, suffrutices, geoxyles and lianes, and is intended to cover Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia and Zimbabwe. The notion of 'indigenous' is of necessity a blurred concept, and is clearly a function of both time and political boundaries. The global distribution of plants useful to humans, or inadvertently transported by them, is closely linked to a mapping of their journeys and settlements, and the movement of species in prehistoric times must be inferred from archaeological and palaeontological remains, centers of diversity, DNA and other sources. Cyatheaceae * ''Cyathea capensis'' (L.f.) J.E. Sm. (''Hemitelia capensis'' Kaulf.) * ''Cyathea dregei'' Kunze (''Alsophila dregei'' (Kunze) R.M. Tryon) * '' Cyathea manniana'' Hook. * ''Alsophila thomsonii'' (Baker) R.M. Tryon (''Cyathea thomsonii'' Baker) Blechnaceae * '' Lomariocycas tabularis'' (Thunb.) Kuhn Cycadaceae * '' Cycas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forests Of KwaZulu-Natal
Areas of forest which grow in KwaZulu-Natal, South Africa mostly on south facing slopes in higher rainfall areas, and along the humid coastal areas. Different types of forest can be identified by their species composition which depends mostly on the altitude, latitude and substrate (soil and rock types) in which they grow. South facing slopes are favourable for the development of forest as they are more shaded, and therefore cooler and retain more moisture than the northern slopes. The extra moisture on the south slopes is not only favoured by forest trees, but also helps to prevent or subdue wildfires. Fires can also be blocked by cliff faces and rocks or boulders on these slopes, and by streams or rivers at the base of the slopes. The coastal regions are conducive to forest formation, because of high rainfall and humidity which are favoured by forest trees and also help to prevent or subdue fires. The rivers of the coastal areas are also broader than further inland, which may o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penaeaceae
The Penaeaceae are a family of evergreen, leathery-leaved shrubs and small trees, native to South Africa. The family has 29 species in 9 genera.Stevens, P. F. (2001 onwards)Penaeaceae. Version 12, July 2012 nd more or less continuously updated since Accessed online: 5 June 2013. The family Penaeaceae was expanded under the of classification with the inclusion of the genera '''' (formerly in the monogeneric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
