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Omphalea Ankaranensis
''Omphalea ankaranensis'' is a plant species endemic to a small region in northern Madagascar. Type locale is in Antsiranana Province, inside Réserve Speciale Ankarana, 7 km SE of Matsaborimanga. Plant grows on limestone soils. ''Omphalea ankaranensis'' is a tree up to 7 m tall. Leaves are heart-shaped, up to 16 cm long. Inflorescence is a racemous thyrse A thyrse is a type of inflorescence in which the main axis grows indeterminately, and the subaxes (branches) have determinate growth.{{cite book , author1=Hickey, M., author2=King, C. , year=2001 , title=The Cambridge Illustrated Glossary of Bot .... References {{Taxonbar, from=Q15367519 ankaranensis Endemic flora of Madagascar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madagascar
Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa across the Mozambique Channel. At Madagascar is the world's List of island countries, second-largest island country, after Indonesia. The nation is home to around 30 million inhabitants and consists of the island of Geography of Madagascar, Madagascar (the List of islands by area, fourth-largest island in the world), along with numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian subcontinent around 90 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of wildlife of Madagascar, its wildlife is endemic. Human settlement of Madagascar occurred during or befo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antsiranana
Antsiranana ( mg, Antsiran̈ana ), named Diego-Suárez prior to 1975, is a city in the far north of Madagascar. Antsiranana is the capital of Diana Region. It had an estimated population of 115,015 in 2013. History The bay and city originally used the name ''Diego-Suárez'', named after Diogo Soares, a Portuguese navigator who visited the bay in 1543–44. In the 1880s, the bay was coveted by France, which desired it as a coaling station for steamships. After the first Franco-Hova War, Queen Ranavalona III signed a treaty on December 17, 1885, granting France a protectorate over the bay and surrounding territory, as well as the islands of Nosy-Be and Ste. Marie de Madagascar. The colony's administration was subsumed into that of Madagascar in 1896. The Second Pacific Squadron of Imperial Russia anchored and was resupplied at Diego-Suárez on its way to the Battle of Tsushima in 1905. In 1942, Diego-Suárez was the primary objective of Operation Ironclad, the starting point ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ankarana
Ankarana Special Reserve in northern Madagascar was created in 1956. It is a small, partially vegetated plateau composed of 150-million-year-old middle Jurassic limestone. With an average annual rainfall of about , the underlying rocks have been eroded to produce caves and feed subterranean rivers—a karst topography. The rugged relief and the dense vegetation have helped protect the region from human intrusion. The southern entrance of the park is in Mahamasina on the Route nationale 6 some 108 km south-west of Antsiranana and north-east of Ambilobe. Geology The plateau slopes gently to the east, but on the west it ends abruptly in the "Wall of Ankarana", a sheer cliff that extends north to south, and rises up to . To the south, the limestone mass breaks up into separate spires known as ''tower karst''. In the center of the plateau, seismic activity and eons of rainfall have eroded the limestone, forming deep gorges and ribbons of flowstone. In places where the calcific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raceme
A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the shoot grows in height, with no predetermined growth limit. Examples of racemes occur on mustard (genus ''Brassica'') and radish (genus ''Raphanus'') plants. Definition A ''raceme'' or ''racemoid'' is an unbranched, indeterminate type of inflorescence bearing pedicellate flowers (flowers having short floral stalks called ''pedicels'') along its axis. In botany, an ''axis'' means a shoot, in this case one bearing the flowers. In indeterminate inflorescence-like racemes, the oldest flowers grow close to the base and new flowers are produced as the shoot grows in height, with no predetermined growth limit. A plant that flowers on a showy raceme may have this reflected in its scientific name, e.g. the species ''Cimicifuga racemosa''. A compou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thyrse
A thyrse is a type of inflorescence in which the main axis grows indeterminately, and the subaxes (branches) have determinate growth.{{cite book , author1=Hickey, M., author2=King, C. , year=2001 , title=The Cambridge Illustrated Glossary of Botanical Terms , publisher=Cambridge University Press Gallery File:Syringa Leipzig 2011.jpg, ''Syringa'', lilac File:Banana Maria Sibylla Merian 1705 plate XII.png, The thyrse of a banana plant has side branches which become hands of bananas File:Vitex agnus-castus 002.JPG, The inflorescence of ''Vitex agnus-castus ''Vitex agnus-castus'', also called vitex, chaste tree (or chastetree), chasteberry, Abraham's balm, lilac chastetree, or monk's pepper, is a native of the Mediterranean region. It is one of the few temperate-zone species of '' Vitex'', which is ...'' has branches, each of which is a thyrse References Plant morphology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omphalea
''Omphalea'' is a plant genus of the family Euphorbiaceae first described as a genus in 1759. It is native to tropical parts of the Americas, the West Indies, Asia, Australia, and Africa (including Madagascar). ''Omphalea'' has monoecious, apetalous flowers and fleshy fruits with hard centers. Ecology The plants are toxic and few animals can eat them. Diurnal moths of the subfamily Uraniinae feed on them. These moths are species of the genus ''Urania'' in the Americas, and of the genus ''Chrysiridia'' in Africa. The only species from mainland Africa is from Tanzania is ''O. mansfeldiana'', a liana from Tanzania . The Madagascan species are ''O. ankaranensis,'' a shrub from the limestone karst of northern Madagascar, ''O. palmata'' Leandri, a dry forest shrub closely related to '' O. ankaranensis'' but from western Madagascar, ''O. occidentalis'' Leandri, also a dry forest species of western Madagascar, and ''O. oppositifilia'' (Willdenow), a tree from the east coast rainforest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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