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Varronia Rupicola
''Varronia rupicola'', synonym ''Cordia rupicola'', commonly known as the Puerto Rico manjack, is a critically endangered species of flowering shrub in the borage family, Boraginaceae, that is native to the islands of Puerto Rico and Anegada. Taxonomy The species was discovered by German botanical collector Paul Sintenis in 1886. Description ''Varronia rupicola'' is a small woody shrub that measures in height. Its leaves are oval-elliptical measuring from . The leaf upper surface is rigidly scabrous, puberulous underneath, and the strigose petioles (the stalk of the leaves) are long. It produces small white flowers which yield a one- seeded red fruit measuring .Proctor, G. 1991. Status survey of ''Cordia rupicola''. In: Puerto Rican Plant Species of Special Concern: Status and Recommendations. Puerto Rico Department of Natural Resources, San Juan, Puerto Rico. Distribution and habitat The species was believed to be endemic to Puerto Rico until it was described from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ignatz Urban
Ignatz Urban (7 January 1848 – 7 January 1931) was a German botanist. He is known for his contributions to the flora of the Caribbean and Brazil, and for his work as curator of the Berlin Botanical Garden. Born the son of a brewer, Urban showed an interest in botany as an undergraduate. He pursued further study at the University of Bonn and later at the University of Berlin where he gained a doctorate in 1873. Urban was appointed by A. W. Eichler to run the Berlin Botanical Garden and supervised its move to Dahlem. He also worked as Eichler's assistant on the ''Flora Brasiliensis'', later succeeding him as editor. In 1884 Urban began working with Leopold Krug on his Puerto Rican collections, a collaboration would later produce the nine-volume '' Symbolae Antillanae'', one of his most important contributions, and his 30-part ''Sertum Antillanum''. Urban's herbarium, estimated to include 80,000 or more sheets, was destroyed when the Berlin Herbarium was bombed in 1943 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guánica, Puerto Rico
Guánica (, ) is a town and municipality in southwestern Puerto Rico, bordering the Caribbean Sea, south of Sabana Grande, east of Lajas, and west of Yauco. It is part of the Yauco metropolitan statistical area. The town of Guánica, also known as Pueblo de Guánica, is the principal town of the municipality. The town's population in 2000 was 9,247 people among 3,808 housing units over a land area of . The town is located on a deeply indented harbor of the same name. The harbor resembles a tropical fjord, narrow and bordered by rugged hills, barely a quarter-mile wide, but about from mouth to the town. The town is about and over two hours' driving distance from San Juan, and about west of Ponce. Guánica's postal ZIP Code is 00653 and telephone area codes are 787 and 939. The urban settlement of Ensenada has a separate postal ZIP Code of 00647. History Settlement Juan Ponce de Leon landed in the Guánica harbor on August 12, 1508, and founded a town called Guaynía ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Endemic Flora Of Puerto Rico
__NOTOC__ This is a list of the endemic flora of Puerto Rico. This list is sorted in alphabetical order by binomial names. Common names are in parentheses. Apocynaceae *'' Forsteronia portoricensis'' *'' Tabernaemontana oppositifolia'' Aquifoliaceae *''Ilex cookii'' ( Cook's Holly) *'' Ilex sintenisii'' ( Sintenis' Holly) Araliaceae *'' Dendropanax laurifolius'' *'' Schefflera gleasonii'' Asclepiadaceae *''Marsdenia elliptica'' *'' Matelea borinquensis'' *'' Matelea sintenisii'' *'' Matelea variifolia'' Asteraceae *''Chromolaena borinquensis'' *''Critonia portoricense'' *''Koanophyllon dolicholepis'' *''Koanophyllon polyodon'' *''Mikania odoratissima'' *''Mikania porosa'' *''Vernonia proctorii'' Begoniaceae *'' Begonia decandra'' Bignoniaceae *''Crescentia portoricensis'' ( Higuero de sierra) *'' Tabebuia haemantha'' Boraginaceae *'' Cordia bellonis'' *'' Cordia wagneriorum'' (Luquillo Mountain manjack) Bromeliaceae *''Hohenbergia antillana'' Buxaceae *''Buxus portorice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Local Extinction
Local extinction, also known as extirpation, refers to a species (or other taxon) of plant or animal that ceases to exist in a chosen geographic area of study, though it still exists elsewhere. Local extinctions are contrasted with global extinctions. Local extinctions mark a change in the ecology of an area. In recent times, local extinction has sometimes been followed by a replacement of the species taken from other locations; wolf reintroduction is an example of this. The term "local extinction" is highly vernacular. The more proper biological term is ''extirpation''. Discussion Glaciation can lead to local extinction. This was the case during the Pleistocene glaciation event in North America. During this period, most of the native North American species of earthworm were killed in places covered by glaciation. This left them open for colonization by European earthworms brought over in soil from Europe. Species naturally become extirpated from islands over time. The number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dune
A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill. An area with dunes is called a dune system or a dune complex. A large dune complex is called a dune field, while broad, flat regions covered with wind-swept sand or dunes with little or no vegetation are called ''ergs'' or ''sand seas''. Dunes occur in different shapes and sizes, but most kinds of dunes are longer on the stoss (upflow) side, where the sand is pushed up the dune, and have a shorter ''slip face'' in the lee side. The valley or trough between dunes is called a ''dune slack''. Dunes are most common in desert environments, where the lack of moisture hinders the growth of vegetation that would otherwise interfere with the development of dunes. However, sand deposits are not restricted to deserts, and dunes are also found along sea shores, along streams in semiarid climates, in areas of glacial outwash, and in other areas where poorly cemented sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bursera Simaruba
''Bursera simaruba'', commonly known as gumbo-limbo, copperwood, chaca, West Indian birch, naked Indian, and turpentine tree, is a tree species in the family Burseraceae, native to the Neotropics, from South Florida to Mexico and the Caribbean to Brazil, Nicaragua, and Venezuela. ''Bursera simaruba'' is prevalent in the Petenes mangroves ecoregion of the Yucatán, where it is a subdominant plant species to mangroves. Specimens may be found along the western coast of Florida. Description ''Bursera simaruba'' is a small to medium-sized tree growing to 30 meters tall, with a diameter of one meter or less at 1.5 meters above ground.Foster (2007) The bark is shiny dark red, and the leaves are spirally arranged and pinnate with 7-11 leaflets, each leaflet broad ovate, 4–10 cm long and 2–5 cm broad. Gumbo-limbo is semi-evergreen. The gumbo-limbo is referred to, humorously, as the tourist tree because the tree's bark is red and peeling, like the skin of the sunburnt to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bucida Buceras
''Terminalia buceras'' is a tree in the Combretaceae family. It is known by a variety of names in English, including bullet tree, black olive tree, gregorywood (or gregory wood), Antigua whitewood, and oxhorn bucida. It is native to Mexico, Central America, the Caribbean, and northern South America. It is commonly found in coastal swamps and wet inland forests in low elevations. Distribution The species is native to an area in the South, Central and North America, from Colombia to Southern Mexico and Florida. Countries and regions in which it grows are: Colombia; Panama; Costa Rica; Venezuelan Antilles; Nicaragua; Windward Islands; Southwest Caribbean; Honduras; Guatemala; Mexico (Southeast, Southwest, Gulf, Central); Leeward Islands; Belize; Dominican Republic; Jamaica; Puerto Rico; Haiti; Cuba; Turks-Caicos Islands; Bahamas; U.S.A. (Florida). It is regarded as introduced to Trinidad and Tobago. Growth To grow it prefers high sunlight and rich, moist, well drained soil. It is h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bucida
''Bucida'' is a genus of flowering plants in the Indian almond family, Combretaceae. It contains the following species (but this list may be incomplete): * '' Bucida angustifolia'' * ''Bucida buceras'' L. - Bullet tree (southern Mexico, Central America, the Caribbean, the Bahamas) * '' Bucida comintana'' * '' Bucida correlliana'' * '' Bucida eocenica'' * '' Bucida macrostachya'' * '' Bucida macrostachys'' * '' Bucida megaphylla'' * '' Bucida megapotamica'' * '' Bucida molinetii'' (M.Gómez) Alwan & Stace - Spiny black olive (southern Florida in the United States, the Bahamas, Cuba, Hispaniola) * '' Bucida nariniana'' * '' Bucida nitida'' * ''Bucida ophiticola'' Bisse (Cuba Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...) * '' Bucida palustris'' Borhidi & O.Muñiz * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bourreria Succulenta
''Bourreria'' is a genus of flowering plants in the borage family, Boraginaceae. Members of the genus are commonly known as strongbark or strongback. The generic name was chosen by Patrick Browne to honour German pharmacist Johann Ambrosius Beurer. The genus is native to the Americas, where species are distributed from Mexico to northern South America, and in the Caribbean and Florida in the United States. The center of diversity is in the Caribbean, Central America,Gottschling, M. and J. S. Miller. (2007)A revision of ''Bourreria'' (Boraginales, Ehretiaceae) in South America.''Annals of the Missouri Botanical Garden'' 94(4) 734-44. and Mexico.Campos Ríos, G. M. (2005)Revisión del género ''Bourreria'' P. Browne (Boraginaceae) en México.''Polibotánica'' 19, 39-103. (Spanish) As of 2007 there are about 30 species in the genus. Species include: *'' Bourreria andrieuxii'' – ''guayabillo'', ''lágrima de virgen'' * '' Bourreria baccata'' Raf. *'' Bourreria boliva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bourreria
''Bourreria'' is a genus of flowering plants in the borage family, Boraginaceae. Members of the genus are commonly known as strongbark or strongback. The generic name was chosen by Patrick Browne to honour German pharmacist Johann Ambrosius Beurer. The genus is native to the Americas, where species are distributed from Mexico to northern South America, and in the Caribbean and Florida in the United States. The center of diversity is in the Caribbean, Central America,Gottschling, M. and J. S. Miller. (2007)A revision of ''Bourreria'' (Boraginales, Ehretiaceae) in South America.''Annals of the Missouri Botanical Garden'' 94(4) 734-44. and Mexico.Campos Ríos, G. M. (2005)Revisión del género ''Bourreria'' P. Browne (Boraginaceae) en México.''Polibotánica'' 19, 39-103. (Spanish) As of 2007 there are about 30 species in the genus. Species include: *''Bourreria andrieuxii'' – ''guayabillo'', ''lágrima de virgen'' * ''Bourreria baccata'' Raf. *''Bourreria bolivarensis'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
