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Dacrydium Guillauminii
''Dacrydium guillauminii'', commonly known as cat-tail Rimu or swamp Dacrydium, is a species of conifer in the family Podocarpaceae. It is found only in New Caledonia. It is a slow growing shrub or small tree with roots that grow in water, and reaches a height between 1 and 2 metres. The species occurs on the banks of rivers and lakes in the south of Grand Terre, the largest island of New Caledonia. It is threatened by wildfires and habitat destruction. Its name honors the French botanist André Guillaumin, who spearheaded the study of the flora of New Caledonia. Description ''Dacrydium guillauminii'' is a shrub that grows to a height of around which forms an erect, densely branched bush. The bark is brown and fibrous, covered with small scales and lenticels when young, and developing many small cracks and crevices as it grows older. The leaves are needle-like with sharp points, overlapping and slightly compressed, and long. The male cones may be apical or axillary, the latte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Theodore Buchholz
John Theodore Buchholz (1888–1951) was an American botanist, specialising in gymnosperm The gymnosperms ( lit. revealed seeds) are a group of seed-producing plants that includes conifers, cycads, '' Ginkgo'', and gnetophytes, forming the clade Gymnospermae. The term ''gymnosperm'' comes from the composite word in el, γυμν ...s. ;Selected bibliography *Polyembryony among Abietineae. ''Bot. Gaz''. 69: 153-167 (1920). *Embryo development and polyembryony in relation to the phylogeny of conifers. ''Amer. J. Bot''. 7: 125-145 (1920). *The classification of Coniferales. ''Trans. Illinois State Acad. Sci''. 25: 112–113. (1933). *The generic segregation of the Sequoias. ''Amer. J. Bot''. 26: 535-538 (1939). *A comparison of the embryogeny of Picea and Abies. ''Madroño'' 6: 156-167 (1942). *Generic and subgeneric distribution of the Coniferales. ''Bot. Gaz''. 110: 80-91 (1948). *Additions to the coniferous flora of New Caledonia. ''Bull. Mus. Hist. Nat.'' (Paris) sér.2, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callitris Pancheri
''Callitris pancheri'' is a plant species of the family Cupressaceae. It is endemic to New Caledonia, where it occurs in small, scattered population along rivers. It used to be placed in its own genus ''Neocallitropsis'' but molecular phylogenetic analysis indicated that it was nested within ''Callitris''.Pye, M. G., P. A. Gadek, and K. J. Edwards (2003). Divergence, Diversity and Species of the Australasian Callitris (Cupressaceae) and Allied Genera : Evidence from ITS Sequence Data. Australian Systematic Botany 16: 505–14. It is an evergreen coniferous tree growing to tall. The leaves are awl-shaped, long, arranged in eight rows in alternating whorls of four; in overall appearance, the foliage is superficially similar to some species of '' Araucaria'', though they are only very distantly related. ''Callitris pancheri'' is dioecious, with separate male and female trees; the seed cones A conifer cone (in formal botanical usage: strobilus, plural strobili) is a seed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dacrydium
''Dacrydium'' is a genus of conifers belonging to the podocarp family Podocarpaceae. Sixteen species of evergreen dioecious trees and shrubs are presently recognized. The genus was first described by Solander in 1786, and formerly included many more species, which were divided into sections A, B, and C by Florin in 1931. The revisions of de Laubenfels and Quinn (see references), reclassified the former section A as the new genus '' Falcatifolium'', divided Section C into new genera ''Lepidothamnus, Lagarostrobos'' and ''Halocarpus'', and retained Section B as genus ''Dacrydium''. Species Distribution The natural range of ''Dacrydium'' extends from New Zealand, New Caledonia, Fiji and the Solomon Islands through Malesia (New Guinea, Indonesia, Malaysia and the Philippines), to Thailand and southern China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam A dam is a barrier that stops or restricts the flow of surface water or underground streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dacrydium Araucarioides
''Dacrydium araucarioides'' is a species of conifer in the family Podocarpaceae. It is found only in New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st .... It is a small tree that reaches a height between 3 and 6 metres. The species is common and widespread, particularly in the south of Grand Terre and along the east coast northwards to Houailou. References araucarioides Endemic flora of New Caledonia Trees of New Caledonia Least concern plants Taxonomy articles created by Polbot Taxa named by Adolphe-Théodore Brongniart Taxa named by Jean Antoine Arthur Gris {{conifer-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conifer
Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class (biology), class, Pinopsida. All Neontology, extant conifers are perennial plant, perennial woody plants with secondary growth. The great majority are trees, though a few are shrubs. Examples include Cedrus, cedars, Pseudotsuga, Douglas-firs, Cupressaceae, cypresses, firs, junipers, Agathis, kauri, larches, pines, Tsuga, hemlocks, Sequoioideae, redwoods, spruces, and Taxaceae, yews.Campbell, Reece, "Phylum Coniferophyta". Biology. 7th. 2005. Print. P. 595 As of 1998, the division Pinophyta was estimated to contain eight families, 68 genera, and 629 living species. Although the total number of species is relatively small, conifers are ecology, ecologically important. They are the dominant plants over large areas of land, most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retrophyllum Minus
''Retrophyllum minus'', the ''bois bouchon'', is a species of conifer in the family Podocarpaceae. It is endemic to New Caledonia. It is a sparsely branched small tree with a flared trunk which tapers towards the top and has rough bark. It produdes pear-shaped fruits that are dark-red when mature. The species occurs near rivers and lakes of the Plaine des Lakes in the south of Grande Terre. It is a rheophyte (grows in running water), the only such conifer known. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ... to mining and wildfire. References Podocarpaceae Endangered plants Endemic flora of New Caledonia Trees of New Caledonia Taxa named by Élie-Abel Carrière {{conifer-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Conifer Society
The American Conifer Society was founded in 1983 to help educate the public about conifers, which are cone-bearing plants. The Society is governed by a board of directors with representation from each of the Society's four regions. The Society publishes the ConiferQuarterly in both digital and hard copy versions and maintains a public website which hosts an extensive conifer database as well as copious articles about identifying, growing and designing with conifers. In addition, the Society holds annual events, including small, informal gatherings and a national meeting, which is rotated among the four regions. The Society also partners with public gardens to help collect plant materials and build conifer collections. The Society is the official national registrar for new conifer cultivars. Education The Society shares knowledge about conifers as well as encourages discovery of new and exiting cultivars. To help foster stewardship, conservation and education, the Society make ... [...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] |
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