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Cedrela Tonduzii
''Cedrela tonduzii'' (edar, cedrillo, cedro, cedro cebolla, cedro colorado, cedro dulce, cedro granadino, cedro macho, cedro pochote, West Indian cedar) is a monoecious tree that grows up to 40 m and can reach a diameter at breast height of up to 180 cm, but generally averages 80 cm. This species is distributed from Chiapas, in southern México, to Panamá. It has been found to grow at altitudes of to and slopes ranging from 15° to 40° of inclination. In Costa Rica it is found on the Cordillera Central, on the Cordillera de Talamanca and presumably on the Cordillera de Guanacaste. The tree crown is open, with low vertical ramification. The bark is gray-brown and may exfoliate in small irregular plates. Leaves are compound, pinnate and range from 20 to 50 cm in length. Each leaf has 5 to 9 pairs of leaflets, 7.5 to 15 cm long and up to 10 cm wide, light green in colour and glaucous below. Flowering occurs in April and May, being pollinated by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anne Casimir Pyrame De Candolle
Anne Casimir Pyramus (or Pyrame) de Candolle (20 February 1836, Geneva – 3 October 1918, Chêne-Bougeries) was a Swiss botanist, the son of Alphonse Pyramus de Candolle. Early life and education He studied chemistry, physics and mathematics in Paris (1853–57), later spending time in England, where he met with Miles Berkeley. In 1859 he visited Algeria, and during the following year, continued his education in Berlin. Afterwards, he returned to Geneva as an assistant and colleague to his father. He married Anna-Mathilde Marcet and they had four children: Raymond Charles de Candolle (1864–1935), Florence Pauline Lucienne de Candolle (1865–1943), Richard Émile Augustin de Candolle (1868–1920) and Reyne Marguerite de Candolle (1876–1958). Career In the field of plant systematics, he used criteria such as stem structure and/or leaf arrangement as a basis of anatomical criteria. As a plant physiologist, he conducted investigations on the movement of leaves, the curl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compound (botany)
Compound may refer to: Architecture and built environments * Compound (enclosure), a cluster of buildings having a shared purpose, usually inside a fence or wall ** Compound (fortification), a version of the above fortified with defensive structures * Compound (migrant labour), a hostel for migrant workers such as those historically connected with mines in South Africa * The Compound, an area of Palm Bay, Florida, US * Komboni or compound, a type of slum in Zambia Government and law * Composition (fine), a legal procedure in use after the English Civil War ** Committee for Compounding with Delinquents, an English Civil War institution that allowed Parliament to compound the estates of Royalists * Compounding treason, an offence under the common law of England * Compounding a felony, a previous offense under the common law of England Linguistics * Compound (linguistics), a word that consists of more than one radical element * Compound sentence (linguistics), a type of sentence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Costa Rica
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 co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Guatemala
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 co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of The Yucatán Peninsula
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] |
Trees Of Central America
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 co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedrela
''Cedrela'' is a genus of several species in the mahogany family, Meliaceae. They are evergreen or dry-season deciduous trees with pinnate leaves, native to the tropical and subtropical New World, from southern Mexico south to northern Argentina. Taxonomy These species are currently accepted: *''Cedrela angustifolia'' Sessé & Moc. ex C.DC. – Argentina, Bolivia, Brazil, Ecuador, Peru *''Cedrela discolor'' S.F. Blake *'' Cedrela dugesii'' S.Watson *'' Cedrela fissilis'' Vell. – Costa Rica south to Argentina *''Cedrela kuelapensis'' T.D. Penn. & Daza *''Cedrela longipetiolulata'' Harms *''Cedrela molinensis'' T.D. Penn. & Reynel *''Cedrela monroensis'' T.D. Penn. *'' Cedrela montana'' Moritz ''ex'' Turcz – Colombia & Ecuador *''Cedrela nebulosa'' T.D. Penn. & Daza *'' Cedrela odorata'' L. – West Indies and from 24° N in Mexico south to 28° S in Argentina *''Cedrela oaxacensis'' C.DC. & Rose *''Cedrela saltensis'' M.A. Zapater & del Castillo *''Cedrela salva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolphe Tonduz
Adolphe Tonduz (1862-1921) was a Swiss botanist who collected plants in both Guatemala and Costa Rica. He was the first director of the National Herbarium of Costa Rica, which was founded in 1887. Together with Henri Pittier he published 'Primitae Florae Costaricensis' and 'Herborisations au Costa Rica'. Honours and namesakes Species named after Tonduz These species were discovered from specimens collected by Tonduz and were unknown to science at the time. * Acronia tonduzii * Anemopaegma tonduzianum * Anthurium tonduzii * Calyptranthes tonduzii *Cedrela tonduzii ''Cedrela tonduzii'' (edar, cedrillo, cedro, cedro cebolla, cedro colorado, cedro dulce, cedro granadino, cedro macho, cedro pochote, West Indian cedar) is a monoecious tree that grows up to 40 m and can reach a diameter at breast height of ... * Quercus tonduzii * Weberocereus tonduzii References External linksHUH Botanists Index [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dehiscence (botany)
Dehiscence is the splitting of a mature plant structure along a built-in line of weakness to release its contents. This is common among fruits, anthers and sporangia. Sometimes this involves the complete detachment of a part; structures that open in this way are said to be dehiscent. Structures that do not open in this way are called indehiscent, and rely on other mechanisms such as decay or predation to release the contents. A similar process to dehiscence occurs in some flower buds (e.g., ''Platycodon'', ''Fuchsia''), but this is rarely referred to as dehiscence unless wikt:circumscissile, circumscissile dehiscence is involved; anthesis is the usual term for the opening of flowers. Dehiscence may or may not involve the loss of a structure through the process of abscission. The lost structures are said to be wikt:caducous, caducous. Association with crop breeding Manipulation of dehiscence can improve crop yield since a Trait (biological), trait that causes seed dispersal i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollinated By Insects
Entomophily or insect pollination is a form of pollination whereby pollen of plants, especially but not only of flowering plants, is distributed by insects. Flowers pollinated by insects typically advertise themselves with bright colours, sometimes with conspicuous patterns (honey guides) leading to rewards of pollen and nectar; they may also have an attractive scent which in some cases mimics insect pheromones. Insect pollinators such as bees have adaptations for their role, such as lapping or sucking mouthparts to take in nectar, and in some species also pollen baskets on their hind legs. This required the coevolution of insects and flowering plants in the development of pollination behaviour by the insects and pollination mechanisms by the flowers, benefiting both groups. Coevolution History The early spermatophytes (seed plants) were largely dependent on the wind to carry their pollen from one plant to another. Prior to the appearance of flowering plants some gymnosper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaucous
''Glaucous'' (, ) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (''Larus hyperboreus''), glaucous-winged gull (''Larus glaucescens''), glaucous macaw (''Anodorhynchus glaucus''), and glaucous tanager (''Thraupis glaucocolpa''). The term ''glaucous'' is also used botanically as an adjective to mean "covered with a greyish, bluish, or whitish waxy coating or bloom that is easily rubbed off" (e.g. glaucous leaves). The first recorded use of ''glaucous'' as a color name in English was in the year 1671. Examples The epicuticular wax coating on mature plum fruit gives them a glaucous appearance. Another familiar example is found in the common grape genus (''Vitis vinifera''). Some cacti have a glaucous coating on their stem(s). Glaucous coatings are hydrophobic so as to prevent wetting by rain. Their waxy character serves to hinder climbing of leaves, stem or fruit by insec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaflet (botany)
A leaflet (occasionally called foliole) in botany is a leaf-like part of a compound leaf. Though it resembles an entire leaf, a leaflet is not borne on a main plant stem or branch, as a leaf is, but rather on a leaf, petiole or a branch of the leaf. Compound leaves are common in many plant families and they differ widely in morphology (biology), morphology. The two main classes of compound leaf morphology are Leaf shape, palmate and pinnate. For example, a ''Cannabis, hemp'' plant has palmate compound leaves, whereas some species of ''Acacia sensu lato, Acacia'' have pinnate leaves. The ultimate free division (or leaflet) of a compound leaf, or a pinnate subdivision of a multipinnate leaf is called a pinnule or pinnula. Image:Ветвь акации.jpg, Pinnate leaf of a Fabaceae, legume with 10 leaflets Image:Mimosa Pudica.gif, ''Mimosa pudica'' folding leaflets inward. See also * Compound leaf References Plant morphology {{botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
