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Virgilia Oroboides
''Virgilia'' is a genus of Southern African trees in the family Fabaceae that is known for its very fast growth (4.5m in 2 years) and a tendency to fall over as it matures (15 years or so). The common name in South Africa (in Afrikaans) is keurboom, meaning 'choice tree'. Valued as useful ornamental trees by gardeners, the genus's two species are also known as tree-in-a-hurry, cape lilac, blossom tree and pink blossom tree. Taxonomy The genus was described by Jean Louis Marie Poiret and published in Encyclopédie Méthodique in 1808. Most botanists feel that the two species are simply forms and should be lumped under one species, ''Virgilia oroboides''. That would mean that the current ''V. divaricata'' is simply a darker form limited to the forested region of Knysna, South Africa. ''Virgilia oroboides'' had a number of synonyms, while both ''V. oroboides'' and ''V. divaricata'' had both been named ''V. capensis'' by different authors. Species Below is a list of offers species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Journal Of Botany
The ''South African Journal of Botany'' (Afrikaans title: ''Suid-Afrikaanse tydskrif vir plantkunde'') is a bimonthly peer reviewed scientific journal covering all aspects of botany as related to Southern Africa. It is published by Elsevier on behalf of the South African Association of Botanists, of which it is an official journal. It was established in 1982 and, after publishing 3 volumes, absorbed the ''Journal of South African Botany'' as of 1985. The latter journal had been established in 1935 and the merged journal continued the volume numbering of the older one. According to the ''Journal Citation Reports'', the journal has a 2013 impact factor of 1.340. References External links * South African Association of Botanists {{botany-journal-stub Botany journals Bimonthly journals Publications established in 1935 Publications established in 1982 Elsevier academic journals English-language journals Academic journals associated with learned and professional societies 198 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinnate
Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and in patterns of erosion or stream beds. The term derives from the Latin word ''pinna'' meaning "feather", "wing", or "fin". A similar concept is "pectination," which is a comb-like arrangement of parts (arising from one side of an axis only). Pinnation is commonly referred to in contrast to "palmation," in which the parts or structures radiate out from a common point. The terms "pinnation" and "pennation" are cognate, and although they are sometimes used distinctly, there is no consistent difference in the meaning or usage of the two words.Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 Plants Botanically, pinnation is an arrangement of discr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of South Africa
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of South Africa
The wildlife of South Africa consists of the flora and fauna of this country in southern Africa. The country has a range of different habitat types and an ecologically rich and diverse wildlife, vascular plants being particularly abundant, many of them endemic to the country. There are few forested areas, much savanna grassland, semi-arid Karoo vegetation and the fynbos of the Cape Floristic Region. Famed for its national parks and big game, 297 species of mammal have been recorded in South Africa, as well as 849 species of bird and over 20,000 species of vascular plants. Geography South Africa is located in subtropical southern Africa, lying between 22°S and 35°S. It is bordered by Namibia, Botswana and Zimbabwe to the north, by Mozambique and Eswatini (Swaziland) to the northeast, by the Indian Ocean to the east and south, and the Atlantic Ocean to the west, the coastline extending for more than . The interior of the country consists of a large, nearly flat, plateau with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afromontane Flora
The Afromontane regions are subregions of the Afrotropical realm, one of the Earth's eight biogeographic realms, covering the plant and animal species found in the mountains of Africa and the southern Arabian Peninsula. The Afromontane regions of Africa are discontinuous, separated from each other by lower-lying areas, and are sometimes referred to as the Afromontane archipelago, as their distribution is analogous to a series of sky islands. Geography Afromontane communities occur above elevation near the equator, and as low as elevation in the Knysna-Amatole montane forests of South Africa. Afromontane forests are generally cooler and more humid than the surrounding lowlands. The Afromontane archipelago mostly follows the East African Rift from the Red Sea to Zimbabwe, with the largest areas in the Ethiopian Highlands, the Albertine Rift Mountains of Uganda, Rwanda, Burundi, Democratic Republic of the Congo, and Tanzania, and the Eastern Arc highlands of Kenya and Tanzania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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