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Simarouba
''Simarouba'' is a genus of trees and shrubs in the family Simaroubaceae, native to the neotropics. It has been grouped in the subtribe Simaroubina along with the ''Simaba'' and ''Quassia'' genera. They have compound leaves, with between 1 and 12 pairs of alternate pinnate leaflets. Their flowers are unisexual, relatively small (around 1 cm long) and arranged in large panicles. Plants are dioecious, bearing only male or female flowers. The individual flowers have between 4 and 6 sepals and petals and between 8 and 12 stamens. The fruit is a carpophore and has up to 5 drupaceous mericarps. Adolf Engler and Arthur Cronquist separated the species in the genus, based mainly on the morphology of their flowers, but also using differences in their leaf structure. ''S. amara'', ''S. glauca'' and ''S. versicolor'' are continental tree species and are often confused with each other, particularly in areas where more than one species is present in the flora. ''S. amara'' can be dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simarouba Amara
''Simarouba amara'' is a species of tree in the family Simaroubaceae, found in the rainforests and savannahs of South and Central America and the Caribbean. It was first described by Aubl. in French Guiana in 1775 and is one of six species of ''Simarouba''. The tree is evergreen, but produces a new set of leaves once a year. It requires relatively high levels of light to grow and grows rapidly in these conditions, but lives for a relatively short time. In Panama, it flowers during the dry season in February and March, whereas in Costa Rica, where there is no dry season it flowers later, between March and July. As the species is dioecious, the trees are either male or female and only produce male or female flowers. The small yellow flowers are thought to be pollinated by insects, the resulting fruits are dispersed by animals including monkeys, birds and fruit-eating bats and the seeds are also dispersed by leaf cutter ants. ''Simarouba amara'' has been studied extensively by s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament and an anther which contains ''sporangium, microsporangia''. Most commonly anthers are two-lobed and are attached to the filament either at the base or in the middle area of the anther. The sterile tissue between the lobes is called the connective, an extension of the filament containing conducting strands. It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The stamens in a flower are collectively called the androecium. The androecium can consist of as few as one-half stamen (i.e. a single locule) as in ''Canna (plant), Canna'' species or as many as 3,482 stamens which have been counted in the saguaro (''Carnegiea gigantea'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atteva Aurea
The ailanthus webworm (''Atteva aurea'') is an ermine moth now found commonly in the United States. It was formerly known under the scientific name ''Atteva punctella'' (see Taxonomy section). This small, very colorful moth resembles a true bug or beetle when not in flight, but in flight it resembles a wasp. Host plants The ailanthus webworm is thought to be native to South Florida and the American tropics (south to Costa Rica), which were the habitat of its original larval host plants: the paradise tree (''Simarouba glauca'') and ''Simarouba amara''. Another tree called tree-of-heaven, (''Ailanthus altissima''), originally from China, has been widely introduced into landscapes and invaded into natural areas where ''Atteva aurea'' has been able to adapt to this new host plant, giving rise to its common name, the "ailanthus webworm". ''Ailanthus'', common name "tree of heaven", is considered an invasive species, although it is still sold by nurseries as a yard plant, mainly becau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timber
Lumber is wood that has been processed into dimensional lumber, including beams and planks or boards, a stage in the process of wood production. Lumber is mainly used for construction framing, as well as finishing (floors, wall panels, window frames). Lumber has many uses beyond home building. Lumber is sometimes referred to as timber as an archaic term and still in England, while in most parts of the world (especially the United States and Canada) the term timber refers specifically to unprocessed wood fiber, such as cut logs or standing trees that have yet to be cut. Lumber may be supplied either rough- sawn, or surfaced on one or more of its faces. Beside pulpwood, ''rough lumber'' is the raw material for furniture-making, and manufacture of other items requiring cutting and shaping. It is available in many species, including hardwoods and softwoods, such as white pine and red pine, because of their low cost. ''Finished lumber'' is supplied in standard sizes, mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edible Oil
Cooking oil is plant, animal, or synthetic liquid fat used in frying, baking, and other types of cooking. It is also used in food preparation and flavoring not involving heat, such as salad dressings and bread dips, and may be called edible oil. Cooking oil is typically a liquid at room temperature, although some oils that contain saturated fat, such as coconut oil, palm oil and palm kernel oil are solid. There are a wide variety of cooking oils from plant sources such as olive oil, palm oil, soybean oil, canola oil (rapeseed oil), corn oil, peanut oil and other vegetable oils, as well as animal-based oils like butter and lard. Oil can be flavored with aromatic foodstuffs such as herbs, chillies or garlic. Cooking spray is an aerosol of cooking oil. Health and nutrition While consumption of small amounts of saturated fats is common in diets, meta-analyses found a significant correlation between ''high consumption'' of saturated fats and blood LDL concentration, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dysentery
Dysentery (UK pronunciation: , US: ), historically known as the bloody flux, is a type of gastroenteritis that results in bloody diarrhea. Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation. Complications may include dehydration. The cause of dysentery is usually the bacteria from genus ''Shigella'', in which case it is known as shigellosis, or the amoeba ''Entamoeba histolytica''; then it is called amoebiasis. Other causes may include certain chemicals, other bacteria, other protozoa, or parasitic worms. It may spread between people. Risk factors include contamination of food and water with feces due to poor sanitation. The underlying mechanism involves inflammation of the intestine, especially of the colon. Efforts to prevent dysentery include hand washing and food safety measures while traveling in areas of high risk. While the condition generally resolves on its own within a week, drinking sufficient fluids such as oral rehydration s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierreodendron
''Pierreodendron'' is a genus of plants in the family Simaroubaceae. Its native range is western tropical Africa and is found in Angola, Benin, Cameroon, Congo, Gabon, Ghana, Ivory Coast, Liberia, Nigeria, Togo and Zaïre. The genus name of ''Pierreodendron'' is in honour of Jean Baptiste Louis Pierre Jean Baptiste Louis Pierre (23 October 1833 – 30 October 1905), also known as J. B. Louis Pierre, was a French botanist known for his Asian studies. Early life Pierre was born in Saint-André, Réunion, and studied in Paris before workin ... (1833–1905), a French botanist known for his Asian studies. It was first described and published in Bot. Jahrb. Syst. Vol.39 on page 575 in 1907. Known species According to Kew; * '' Pierreodendron africanum'' (Hook.f.) Little * '' Pierreodendron kerstingii'' (Engl.) Little References Sapindales genera Taxonomy articles created by Polbot Plants described in 1907 Flora of West Tropical Africa Flora of West-Central Trop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ailanthus
''Ailanthus'' (; derived from ''ailanto,'' an Ambonese word probably meaning "tree of the gods" or "tree of heaven") is a genus of trees belonging to the family Simaroubaceae, in the order Sapindales (formerly Rutales or Geraniales). The genus is native from east Asia south to northern Australasia. Selected species The number of living species is disputed, with some authorities accepting up to ten species, while others accept six or fewer. Species include: *''Ailanthus altissima'' (tree of heaven, syn. '' A. vilmoriniana'' ) – northern and central mainland China, Taiwan. Invasive in North America, Europe, Britain, and Australia. Serves as central metaphor in '' A Tree Grows in Brooklyn''. *'' Ailanthus excelsa'' – India and Sri Lanka *'' Ailanthus fordii'' – China *'' Ailanthus integrifolia'' – New Guinea and Queensland, Australia *'' Ailanthus triphysa'' (white siris syn. ''A. malabarica'') – India, South-east Asia and Australia *'' Ailanthus vietnamensis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leitneria
''Leitneria floridana'' (corkwood), the sole species in the genus ''Leitneria'', is a deciduous dioecious shrub or small tree, found only in the southern United States states of Arkansas, Florida, Georgia, Missouri and Texas. It grows at damp habitats, mostly in coastal areas and has extremely light wood with a density less than that of cork. It typically reaches 2–4 m tall, occasionally up to 8 m. The trunk can reach 10 cm in diameter. The leaves are alternate, simple lanceolate, 5–20 cm long and 3–6 cm broad. In the past, it was treated as the only species in the family Leitneriaceae of the order Leitneriales, but genetic research by the Angiosperm Phylogeny Group has recently resulted in its being transferred to the family Simaroubaceae in the Sapindales. It is named after the German natural scientist E. F. Leitner. Fossil record A single, strongly compressed endocarp has been collected from the sediments of the Villa San Faustino site in Italy. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubisco
Ribulose-1,5-bisphosphate carboxylase-oxygenase, commonly known by the abbreviations RuBisCo, rubisco, RuBPCase, or RuBPco, is an enzyme () involved in the first major step of carbon fixation, a process by which atmospheric carbon dioxide is converted by plants and other photosynthesis, photosynthetic organisms to fuel, energy-rich molecules such as glucose. In chemical terms, it catalysis, catalyzes the carboxylation of ribulose-1,5-bisphosphate (also known as RuBP). It is probably the most abundant enzyme on Earth. Alternative carbon fixation pathways RuBisCO is important biology, biologically because it catalyzes the primary chemical reaction by which Total inorganic carbon, inorganic carbon enters the biosphere. While many autotrophic bacteria and archaea fix carbon via the reductive acetyl CoA Pathway, reductive acetyl CoA pathway, the 3-hydroxypropionate cycle, or the reverse Krebs cycle, these pathways are relatively small contributors to global carbon fixation compared t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomentose
Trichomes (); ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plant is an indumentum, and the surface bearing them is said to be pubescent. Algal trichomes Certain, usually filamentous, algae have the terminal cell produced into an elongate hair-like structure called a trichome. The same term is applied to such structures in some cyanobacteria, such as '' Spirulina'' and ''Oscillatoria''. The trichomes of cyanobacteria may be unsheathed, as in ''Oscillatoria'', or sheathed, as in ''Calothrix''. These structures play an important role in preventing soil erosion, particularly in cold desert climates. The filamentous sheaths form a persistent sticky network that helps maintain soil structure. Plant trichomes Plant trichomes have many different features that vary between both species of plants and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichome
Trichomes (); ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plant is an indumentum, and the surface bearing them is said to be pubescent. Algal trichomes Certain, usually filamentous, algae have the terminal cell produced into an elongate hair-like structure called a trichome. The same term is applied to such structures in some cyanobacteria, such as '' Spirulina'' and ''Oscillatoria''. The trichomes of cyanobacteria may be unsheathed, as in ''Oscillatoria'', or sheathed, as in ''Calothrix''. These structures play an important role in preventing soil erosion, particularly in cold desert climates. The filamentous sheaths form a persistent sticky network that helps maintain soil structure. Plant trichomes Plant trichomes have many different features that vary between both species of plants an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
