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Polyscias Oahuensis
''Polyscias oahuensis'' is a species of tree in the ivy family known by the common name ohe mauka''. It is endemic to Hawaii, where it occurs on all the major islands except for Niihau and Kahoolawe.''Tetraplasandra oahuensis''. Center for Plant Conservation. This tree has compound leaves each made up of 7 to 15 dull leaflets. It contains a clear . The fruits are black or purple in color and their seeds are dispersed by birds. This was the most variable species of the formerly recognized genus '' |
Asa Gray
Asa Gray (November 18, 1810 – January 30, 1888) is considered the most important American botanist of the 19th century. His ''Darwiniana'' was considered an important explanation of how religion and science were not necessarily mutually exclusive. Gray was adamant that a genetic connection must exist between all members of a species. He was also strongly opposed to the ideas of hybridization within one generation and special creation in the sense of its not allowing for evolution. He was a strong supporter of Darwin, although Gray's theistic evolution was guided by a Creator. As a professor of botany at Harvard University for several decades, Gray regularly visited, and corresponded with, many of the leading natural scientists of the era, including Charles Darwin, who held great regard for him. Gray made several trips to Europe to collaborate with leading European scientists of the era, as well as trips to the southern and western United States. He also built an extensive ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araliaceae
The Araliaceae are a family of flowering plants composed of about 43 genera and around 1500 species consisting of primarily woody plants and some herbaceous plants. The morphology of Araliaceae varies widely, but it is predominantly distinguishable based on its woody habit, tropical distribution, and the presence of simple umbels. There are numerous plants of economic importance. Some genera, such as ''Hedera'' (the ivies), ''Fatsia'' (Japanese aralias) and ''Schefflera'' (the umbrella trees)'', ''are used as ornamental foliage plants. The family also includes ''Panax ginseng'', the root of which is ginseng, used in traditional Chinese medicine. Overview The morphology of Araliaceae varies widely. Many studies have found that there is no unifying characteristic capable of classifying the family. In general, Araliaceae species have large, usually alternate leaves, often with aromatic ethereal oils, five-petaled flowers, two to five carpels, simple umbels, and berries without ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
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] |
Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest protected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niihau
Niihau ( Hawaiian: ), anglicized as Niihau ( ), is the westernmost main and seventh largest inhabited island in Hawaii. It is southwest of Kauaʻi across the Kaulakahi Channel. Its area is . Several intermittent playa lakes provide wetland habitats for the Hawaiian coot, the Hawaiian stilt, and the Hawaiian duck. The island is designated as critical habitat for ''Brighamia insignis'', an endemic and endangered species of Hawaiian lobelioid. The United States Census Bureau defines Niihau and the neighboring island and State Seabird Sanctuary of Lehua as Census Tract 410 of Kauai County, Hawaii. Its 2000 census population was 160, most of whom are native Hawaiians; Its 2010 census population was 170. At the 2020 census, the population had fallen to 84. Elizabeth Sinclair purchased Niihau in 1864 for from the Kingdom of Hawaii. The island's private ownership passed on to her descendants, the Robinsons. During World War II, the island was the site of the Niihau incident, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kahoolawe
Kahoolawe (Hawaiian: ), anglicized as Kahoolawe (), is the smallest of the eight main volcanic islands in the Hawaiian Islands. Kahoolawe is located about southwest of Maui and also southeast of Lānaʻi, and it is long by wide, with a total land area of . The highest point on Kahoolawe is the crater of Lua Makika at the summit of Puu Moaulanui, which is about above sea level. Kahoolawe is relatively dry (average annual rainfall is less than ) because the island's low elevation fails to generate much orographic precipitation from the northeastern trade winds, and Kahoʻolawe is located in the rain shadow of eastern Maui's volcano, Haleakalā. More than one quarter of Kahoolawe has been eroded down to saprolitic hardpan soil, largely on exposed surfaces near the summit. Kahoolawe has always been sparsely populated, due to its lack of fresh water. During World War II and the following decades, Kahoolawe was used as a training ground and bombing range by the Armed Forces of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed Dispersal
In Spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, such as the wind, and living ( biotic) vectors such as birds. Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. The patterns of seed dispersal are determined in large part by the dispersal mechanism and this has important implications for the demographic and genetic structure of plant populations, as well as migration patterns and species interactions. There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus. These modes are typically inferred based on adaptations, such as wings or fleshy fruit. However, this simplified view may ignor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetraplasandra
''Tetraplasandra'' is a no longer recognised genus of plants in the ivy family, Araliaceae. They are small to medium trees, (rarely shrubs or large trees) of mesic to wet forests.Porter P. Lowry II. 1990. "Araliaceae", pages 224-237. In: Warren L. Wagner, Derral R. Herbst, and Sy H. Sohmer. ''Manual of the Flowering Plants of Hawaii'', Revised Edition, 1999. Bishop Museum Press: Hololulu Some authors have recognized as many as 19 species in ''Tetraplasandra'',Earl Edward Sherff. 1955. "Revision of the Hawaiian members of the genus ''Tetraplasandra'' A. Gray". ''Fieldiana: Botany'' 29(2):49-142. while others have recognized as few as six. In 2007, the authors of a scientific paper recommended that the genus be divided into nine species.Annemarie Costello and Timothy J. Motley. 2007. "Phylogenetics of the Tetraplasandra Group (Araliaceae) Inferred from ITS, 5S-NTS, and Morphology". ''Systematic Botany'' 32(2):464-477. In 2010, all of these nine species were included in ''Polyscias'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyscias
''Polyscias'' is a genus of flowering plants in the family Araliaceae. They bear pinnately compound leaves. In 2003, a checklist and nomenclator was published for Araliaceae.David G. Frodin and Rafaël Govaerts. 2003. ''World Checklist and Bibliography of Araliaceae''. Royal Botanic Gardens, Kew. . (See ''External links'' below). In this work, 116 species were listed for ''Polyscias''. , Plants of the World Online recognises 180 species in the genus and 22 synonyms for it. Species A * ''Polyscias aculeata'' * ''Polyscias acuminata'' * '' Polyscias aemiliguineae'' * ''Polyscias aequatoguineensis'' * ''Polyscias aherniana'' * ''Polyscias albersiana'' * ''Polyscias alternifolia'' * ''Polyscias amplifolia'' * ''Polyscias anacardium'' * ''Polyscias andraerum'' * ''Polyscias angustifolia'' * ''Polyscias ariadnes'' * ''Polyscias ashtonii'' * ''Polyscias aubrevillei'' * ''Polyscias australiana'' B * ''Polyscias baehniana'' * ''Polyscias balansae'' * '' Polyscias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of Hawaii
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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biota Of Oahu
Biota may refer to: * Biota (ecology), the plant and animal life of a region * Biota (plant), common name for a coniferous tree, ''Platycladus orientalis'' * Biota, Cinco Villas, a municipality in Aragon, Spain * Biota (band), a band from Colorado, USA * Biota! Biota! was a proposed aquarium in the Silvertown Quays redevelopment, on the site of Millennium Mills adjacent to the Royal Victoria Dock, part of the wider Thames Gateway regeneration project for East London. The £80 million building by Ter ..., a proposed aquarium in London * ''Biota'' (album), a 1982 album by Mnemonist Orchestra See also * {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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