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Schinopsis Lorentzii
''Schinopsis lorentzii'' is a hardwood tree known as red quebracho, native of the Paraguayan subtropical area, which forms forests in Gran Chaco region of Argentina, in Paraguay, and Bolivia. Some of its common names are ''coronillo'', ''quebracho Cornillo'' (Brazil), ''quebracho chaqueño'', ''quebracho colorado santiagueño'', ''quebracho macho'', and ''quebracho bolí''. The qualification ''colorado'' ("red") differentiates it from other species of common quebracho tree, the ''Aspidosperma quebracho-blanco'' (''quebracho blanco'', "white quebracho", family Apocynaceae). The indication ''santiagueño'' (from Santiago del Estero) is made to distinguish it from ''quebracho colorado chaqueño'', a closely related species (''Schinopsis balansae''). It is considered a symbol of the Gran Chaco region. This tree is commercially very important due to its extremely hard and durable wood, and because of its tannin Tannins (or tannoids) are a class of astringent, polyphenolic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Gustav Adolf Engler
Heinrich Gustav Adolf Engler (25 March 1844 – 10 October 1930) was a German botanist. He is notable for his work on plant taxonomy and phytogeography, such as ''Die natürlichen Pflanzenfamilien'' (''The Natural Plant Families''), edited with Karl A. E. von Prantl. Even now, his system of plant classification, the Engler system, is still used by many herbaria and is followed by writers of many manuals and floras. It is still the only system that treats all 'plants' (in the wider sense, algae to flowering plants) in such depth. Engler published a prodigious number of taxonomic works. He used various artists to illustrate his books, notably Joseph Pohl (1864–1939), an illustrator who had served an apprenticeship as a wood-engraver. Pohl's skill drew Engler's attention, starting a collaboration of some 40 years. Pohl produced more than 33 000 drawings in 6 000 plates for ''Die naturlichen Pflanzenfamilien''. He also illustrated ''Das Pflanzenreich'' (1900–1953), ''Die Pfla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schinopsis Balansae
''Schinopsis balansae'' is a hardwood tree known as willow-leaf red quebracho which forms forests in the subtropical Humid Chaco ecoregion of north-eastern Argentina, and Paraguay. It is also found in the wild Pantanal vegetation in Brazil. Some of its vernacular names are ''quebracho colorado chaqueño'' and ''quebracho santafesino''. Other species, like ''Schinopsis lorentzii'', bear the general name quebracho and have similar properties and uses. ''S. balansae'' shares its habitat with a species of the same genus, ''S. heterophylla'', and the two are often confused. This tree can reach 24 metres in height and more than one metre in diameter. Its trunk is straight, with a brownish-gray bark. Its wood is extremely heavy ( relative density = 1.2). Its main use is the extraction of quebracho extract, which is 63% pure tannin Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Paraguay
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Bolivia
In botany, a tree is a perennial plant with an elongated Plant stem, stem, or trunk (botany), trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller Arecaceae, palms, Cyatheales, tree ferns, Musa (genus), bananas, and bamboos are also trees. Trees are not a Taxon, taxonomic group but include a variety of plant species that Convergent evolution, have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Argentina
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schinopsis
''Schinopsis'' is a genus of South American trees in the family Anacardiaceae, also known by the common names quebracho, quebracho colorado and red quebracho. In Brazil it is known as ''baraúna'' or ''braúna''. Description The species within this genus inhabit different regions of the Gran Chaco ecoregion including parts of northern Argentina, Bolivia, and Paraguay. In Brazil it can be found as a component of the Caatinga in the northwestern region. The name is in recognition of the hardness of the wood from the Spanish ''quiebra-hacha'' ("axe-breaker"). It also distinguishes the species from the "white ''quebracho''" trees of the unrelated genus '' Aspidosperma''. ''Schinopsis'' is the exclusive food plant of the moth '' Coleophora haywardi''. Species * '' Schinopsis balansae'' (common name: ''quebracho colorado chaqueño'') * '' Schinopsis boqueronensis'' * '' Schinopsis brasiliensis'' * ''Schinopsis cornuta'' * '' Schinopsis haenkeana'' * '' Schinopsis heterophyll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanning (leather)
Tanning is the process of treating skins and hides of animals to produce leather. A tannery is the place where the skins are processed. Tanning hide into leather involves a process which permanently alters the protein structure of skin, making it more durable and less susceptible to decomposition and coloring. Before tanning, the skins are dehaired, degreased, desalted and soaked in water over a period of six hours to two days. Historically this process was considered a noxious or "odoriferous trade" and relegated to the outskirts of town. Historically, tanning used tannin, an acidic chemical compound from which the tanning process draws its name, derived from the bark of certain trees. An alternative method, developed in the 1800s, is chrome tanning, where chromium salts are used instead of natural tannins. History The English word for tanning is from medieval Latin , derivative of ( oak bark), from French (tanbark), from old-Cornish (red oak). These terms are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tannin
Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids. The term ''tannin'' (from Anglo-Norman ''tanner'', from Medieval Latin ''tannāre'', from ''tannum'', oak bark) refers to the use of oak and other bark in tanning animal hides into leather. By extension, the term ''tannin'' is widely applied to any large polyphenolic compound containing sufficient hydroxyls and other suitable groups (such as carboxyls) to form strong complexes with various macromolecules. The tannin compounds are widely distributed in many species of plants, where they play a role in protection from predation (acting as pesticides) and might help in regulating plant growth. The astringency from the tannins is what causes the dry and puckery feeling in the mouth following the consumption of unripened fruit, red wine or tea. Likewise, the destruction or modification of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santiago Del Estero Province
Santiago del Estero (), also known simply as Santiago, is a province in the north of Argentina. Neighboring provinces, clockwise from the north, are Salta, Chaco, Santa Fe, Córdoba, Catamarca and Tucumán. History The indigenous inhabitants of these lands were the Juríes-Tonocotés, Sanavirones and other tribes. Santiago del Estero is still home to about 100,000 speakers of the local variety of Quechua, making this the southernmost outpost of the language of the Incas. When the language reached the area, and how, remains unclear—it may even have arrived only with the native troops that accompanied the first Spanish expeditions. Diego de Rojas first reached this land in 1542. Francisco de Aguirre founded the city of Santiago del Estero in 1553 as the northernmost city founded by Spanish conquistadores coming from the Pacific Ocean. Santiago then passed under different governments, from the intendency of Tucumán to the ''Audiencia de Charcas'', then again to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. In wider definitions, the taller palms, tree ferns, bananas, and bamboos are also trees. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some reaching several thousand years old. Trees have been in existence for 370 million years. It is estimated that there are some three trillion mature trees in the world. A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apocynaceae
Apocynaceae (from ''Apocynum'', Greek for "dog-away") is a family of flowering plants that includes trees, shrubs, herbs, stem succulents, and vines, commonly known as the dogbane family, because some taxa were used as dog poison Members of the family are native to the European, Asian, African, Australian, and American tropics or subtropics, with some temperate members. The former family Asclepiadaceae (now known as Asclepiadoideae) is considered a subfamily of Apocynaceae and contains 348 genera. A list of Apocynaceae genera may be found here. Many species are tall trees found in tropical forests, but some grow in tropical dry (xeric) environments. Also perennial herbs from temperate zones occur. Many of these plants have milky latex, and many species are poisonous if ingested, the family being rich in genera containing alkaloids and cardiac glycosides, those containing the latter often finding use as arrow poisons. Some genera of Apocynaceae, such as '' Adenium'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidosperma Quebracho-blanco
''Aspidosperma quebracho-blanco'', commonly known as Quebracho blanco, kebrako, or white quebracho, is a South American tree species, native to Brazil, northern Argentina, Bolivia, Paraguay, and Uruguay. It must not be confused with other species also known as '' quebracho'', but belonging to the genus ''Schinopsis''. Description ''Aspidosperma quebracho-blanco'' is an evergreen tree. It reaches 20 to 30 meters in height in the Humid Chaco, and 8 to 12 meters in the Dry Chaco. The foliage is sclerophyllous. Habitat and range ''Aspidosperma quebracho-blanco'' is generally found in dry deciduous forests, where it grows on clay soils. It is most common in the Gran Chaco, Humid Chaco, Argentine Espinal, and Bolivian montane dry forests ecoregions of Paraguay, Argentina, Bolivia, and Brazil. Its range extends to adjacent ecoregions, including the Uruguayan savanna, Paraná flooded savanna, Southern Cone Mesopotamian savanna, Southern Andean Yungas, Cerrado, Pantanal, Central Andean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
