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Cycas Papuana
''Cycas papuana'' is a species of cycad endemic to Papua New Guinea. It is found in Western Province, including the floodplains of the Fly River The Fly River is the third longest river on the island of New Guinea, after the Sepik and Mamberamo, with a total length of . It is the largest by volume of discharge in Oceania, the largest in the world without a single dam in its catchment, an ... and near Daru to the west, and also extending to the Bensbach River. References papuana Plants described in 1876 {{cycad-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycad
Cycads are seed plants that typically have a stout and woody (ligneous) trunk (botany), trunk with a crown (botany), crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, that is, individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow slowly and have long lifespans. Because of their superficial resemblance to Arecaceae, palms or ferns, they are sometimes mistaken for them, but they are not closely related to either group. Cycads are gymnosperms (naked-seeded), meaning their fertilization, unfertilized seeds are open to the air to be directly fertilized by pollination, as contrasted with angiosperms, which have enclosed seeds with more complex fertilization arrangements. Cycads have very specialized pollinators, usually a specific beetle, and more rarely a thrips or a moth. Both male and female cycads bear cones (strobilus, stro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
Endemism is the state of a species being found only 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 also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papua New Guinea
Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean north of Australia. It has Indonesia–Papua New Guinea border, a land border with Indonesia to the west and neighbours Australia to the south and the Solomon Islands to the east. Its capital, on its southern coast, is Port Moresby. The country is the world's third largest list of island countries, island country, with an area of . The nation was split in the 1880s between German New Guinea in the North and the Territory of Papua, British Territory of Papua in the South, the latter of which was ceded to Australia in 1902. All of present-day Papua New Guinea came under Australian control following World War I, with the legally distinct Territory of New Guinea being established out of the former German colony as a League of Nations mandate. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Province (Papua New Guinea)
Western Province is a coastal province in southwestern Papua New Guinea, bordering the Indonesian provinces of Highland Papua and South Papua. The provincial capital is Daru. The largest town in the province is Tabubil. Other major settlements are Kiunga, Ningerum, Olsobip and Balimo. The provincial government has, as with the governments of North Solomons, Chimbu and Northern provinces, sought to change the name of the province. The government uses the name Fly River Provincial Government; however, this remains unofficial as it has not been changed in the Constitution of Papua New Guinea. Geography and ecology Western Province covers 99,300 km² and is the largest province in Papua New Guinea by area. There are several large rivers that run through the province, including the Fly River and its tributaries the Strickland and Ok Tedi rivers. The largest lake in Papua New Guinea, Lake Murray, is also in Western Province. This province is the only part of Papu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fly River
The Fly River is the third longest river on the island of New Guinea, after the Sepik and Mamberamo, with a total length of . It is the largest by volume of discharge in Oceania, the largest in the world without a single dam in its catchment, and overall the 20th-largest primary river in the world by discharge volume. It is located in the southwest of Papua New Guinea and in the South Papua province of Indonesia. It rises in the Victor Emanuel Range arm of the Star Mountains, and crosses the south-western lowlands before flowing into the Gulf of Papua in a large delta. The Fly–Strickland River system has a total length of , making it the longest river system of an island in the world. The Strickland is the longest and largest tributary of Fly River, making it the farthest distance source of the Fly River. Description The Fly flows mostly through the Western Province of Papua New Guinea and for a small stretch, it forms the international boundary with Indonesia's weste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bensbach River
The Bensbach River is a river in southwestern Papua New Guinea. It is located just to the east of the Maro River in Merauke Regency, Indonesia, and just to the west of the Morehead River in Papua New Guinea. The mouth of the river, Torasi Estuary, marks part of the extreme southern boundary between Papua New Guinea and Indonesia. The river is strongly meandering and rather narrow. From the rivermouth, it stretches in a roughly northeasterly direction, and so is entirely located in PNG territory. It flows through the Trans-Fly savanna and grasslands, including the Tonda Wildlife Management Area. Europeans first discovered the river on 27 February 1893, and it was named after Jacob Bensbach, Dutch Resident at Ternate, by Sir William MacGregor. The local people call it the Torassi (sometimes spelled Torasi). Tonda languages are spoken in the Bensbach River area. See also *List of rivers of Papua New Guinea *Western Province (Papua New Guinea) * Tonda Wildlife Management Area * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycas
''Cycas'' is a genus of cycad, and the only genus in the family Cycadaceae with all other genera of cycad being divided between the Stangeriaceae and Zamiaceae families. '' Cycas circinalis'', a species endemic to India, was the first cycad species to be described in western literature, and is the type species of the genus. As of April 2024, there are 119 accepted species within the genus ''Cycas'', all of which are native to Asia, Oceania, and eastern Africa and the Indian ocean region, with the largest number of species native to Australia, China and Vietnam.The World List of Cycads (WLoC), a comprehensive taxonomic reference for cycad taxonomy, nomenclature, biology, and literature. The WLoC is produced under the auspices of thIUCN/SSC Cycad Specialist Group (CSG) The online edition is hosted and sponsored bMontgomery Botanical Center Calonje M, Stevenson DW, Osborne R. The World List of Cycads, online edition nternet 2013-2024. ited 2024 Apr 21 Available fromhttp://www.cyca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
