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Angraecum Leonis
''Angraecum leonis'' is a species of flowering plant in the Orchidaceae family. Description Forms Two different forms of this species exist. The form native to the Comoros is considerably larger and nearly twice as big as the one native to Madagascar. Otway, B. (2021, August 2). ''Angraecum leonis''. Pumpkin Beth - Horticulturist and Garden Writer. Retrieved January 14, 2023, from https://www.pumpkinbeth.com/plants/angraecum-leonis/Kuligowski, T. (n.d.). ''Angraecum leonis'' (Size Identifies). The International Orchid Foundation (IOF). Retrieved January 14, 2023, from https://www.orchids.org/articles/angraecum-leonis-size-identifies''Angraecum leonis'' care and culture. (2017, December 31). Travaldo’s Blog. Retrieved January 14, 2023, from https://travaldo.blogspot.com/2018/01/angraecum-leonis-care-and-culture.html Cytology The diploid chromosome count of this species is 2n = 40,Jones, K. (1967)"The Chromosomes of Orchids: II: Vandeae Lindl."Kew Bulletin, 21(1), 151-156. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gothenburg Botanical Garden
The Gothenburg Botanical Garden ( sv, Göteborgs botaniska trädgård) is located in Gothenburg, Sweden, and is one of the larger botanical gardens in Europe. History The Gothenburg Botanical Garden is situated in a formerly completely rural area, where earlier a great country estate named Stora Änggården was located. The garden was initially funded by a donation from the Charles Felix Lindberg Foundation, in special memory of himself. Lindberg was a Swedish businessman and donor, who died in 1909. The Gothenburg City Council took the initiative to the botanical garden in 1912. The decision was finally taken in 1915 and work started in 1916. The park was opened to the public in 1919 (the Woodlands) and in 1923 (the cultivated areas). It was first planned as "a field for experimentation and biological demonstrations, and a nature park". Stora Änggården was built in 1812 and renovated under the supervision of the architect Sigfrid Ericson in 1919 and is now used as staff re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzyl Salicylate
Benzyl salicylate is a salicylic acid benzyl ester, a chemical compound most frequently used in cosmetics as a fragrance additive or UV light absorber. It appears as an almost colorless liquid with a mild odor described as "very faint, sweet-floral, slightly balsamic" by some, while others smell nothing at all. There is debate whether the odour is caused solely by impurities or a genetic predisposition. It occurs naturally in a variety of plants and plant extracts and is widely used in blends of fragrance materials. There is some evidence that people may become sensitized to this material and as a result, there is a restriction standard concerning the use of this material in fragrances by the International Fragrance Association. It is used as a solvent for crystalline synthetic musks and as a component and fixative in floral perfumes such as carnation, jasmine, lilac, and wallflower.An Introduction to Perfumery by Curtis & Williams 2nd Edition, 2009, , See also *Oil of winterg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Heinrich Gustav Reichenbach
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angraecum
The genus ''Angraecum'', abbreviated as Angcm in horticultural trade, common name comet orchid, contains about 220 species. Etymology Despite the genus's distribution being largely confined to Africa and its offshore islands, the genus name is a latinization of the Indonesian and Malay word anggrek (“orchid”), itself ultimately from Javanese ꦲꦔ꧀ꦒꦿꦺꦏ꧀ (anggrék, “orchid”). Description Angraecums are quite varied vegetatively and florally, and are adapted to dry tropical woodland habitat and have quite fleshy leaves as a consequence. Most are epiphytes, but a few are lithophytes. The long-lasting flowers are racemose and grow from the leaf axils. They are mostly white, but a few are yellow, green or ochre. They all have a long spur at the back of the labellum (lip). In the case of '' Angraecum sesquipedale'', a species from Madagascar, on observing the spur in the lip, Charles Darwin made the hypothesis that, since the nectar was at the bottom of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chavicol Acsv
Chavicol (''p''-allylphenol) is a natural phenylpropene, a type of organic compound. Its chemical structure consists of a benzene ring substituted with a hydroxy group and a propenyl group. It is a colorless liquid found together with terpenes in betel oil. Properties and reactions Chavicol is miscible with alcohol, ether, and chloroform. Dimerization of chavicol gives the neo-lignan magnolol. Uses Chavicol is used as an odorant in perfumery and as a flavor. It is found in many essential oils, including anise and Gardenia. Biosynthesis Chavicol is formed in sweet basil (''Ocimum Basilicum'') by the phenylpropanoid pathway via p-coumaryl alcohol. The allylic alcohol in p-coumaryl alcohol is converted into a leaving group. This then leaves thus forming a cation, this cation can be reagrded as a quinone methide which then is reduced by NADPH to form either anol Anol, also known as ''para''-hydroxypropenylbenzene, is a simple phenol that was derived via demethylation fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methyl Nicotinate
In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula . In formulas, the group is often abbreviated as Me. This hydrocarbon group occurs in many organic compounds. It is a very stable group in most molecules. While the methyl group is usually part of a larger molecule, bounded to the rest of the molecule by a single covalent bond (), it can be found on its own in any of three forms: methanide anion (), methylium cation () or methyl radical (). The anion has eight valence electrons, the radical seven and the cation six. All three forms are highly reactive and rarely observed. Methyl cation, anion, and radical Methyl cation The methylium cation () exists in the gas phase, but is otherwise not encountered. Some compounds are considered to be sources of the cation, and this simplification is used pervasively in organic chemistry. For example, protonation of methanol gives an electr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzyl Benzoate
Benzyl benzoate is an organic compound which is used as a medication and insect repellent. As a medication it is used to treat scabies and lice. For scabies either permethrin or malathion is typically preferred. It is applied to the skin as a lotion. Typically two to three applications are needed. It is also present in Balsam of Peru, Tolu balsam, and in a number of flowers. Side effects may include irritation of the skin. It is not recommended in children. It is also used in other animals; however, it is considered toxic to cats. How it works is unclear. Benzyl benzoate was first studied medically in 1918. It is on the World Health Organization's List of Essential Medicines. Benzyl benzoate is sold under the brand name Scabanca among others and is available as a generic medication. It is not available for medical use in the United States. Uses Medical Benzyl benzoate is an effective and inexpensive topical treatment for human scabies. It has vasodilating and spas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chavicol
Chavicol (''p''-allylphenol) is a natural phenylpropene, a type of organic compound. Its chemical structure consists of a benzene ring substituted with a hydroxy group and a propenyl group. It is a colorless liquid found together with terpenes in betel oil. Properties and reactions Chavicol is miscible with alcohol, ether, and chloroform. Dimerization of chavicol gives the neo-lignan magnolol. Uses Chavicol is used as an odorant in perfumery and as a flavor. It is found in many essential oils, including anise and Gardenia. Biosynthesis Chavicol is formed in sweet basil (''Ocimum Basilicum'') by the phenylpropanoid pathway via p-coumaryl alcohol. The allylic alcohol in p-coumaryl alcohol is converted into a leaving group. This then leaves thus forming a cation, this cation can be reagrded as a quinone methide which then is reduced by NADPH to form either anol or chavicol.Daniel G. Vassao, David R. Gang, Takao Koeduka, Brenda Jackson, Eran Pichersky, Laurence B. Davina and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Gustav Reichenbach
Heinrich Gustav Reichenbach (Dresden, 3 January 1823 – Hamburg, 6 May 1889) was a botanist and the foremost German orchidologist of the 19th century. His father Heinrich Gottlieb Ludwig Reichenbach (author of ''Icones Florae Germanicae et Helveticae'') was also a well-known botanist. Biography He started his study of orchids at the age of 18 and assisted his father in the writing of ''Icones''. He became a Doctor in Botany with his work on the pollen of orchids (see ‘Selected Works’). Soon after his graduation, Reichenbach was appointed to the post of extraordinary professor of botany at the Leipzig in 1855. He then became director of the botanical gardens at the Hamburg University (1863-1889). At that time, thousands of newly discovered orchids were being sent back to Europe. He was responsible for identifying, describing, classifying. Reichenbach named and recorded many of these new discoveries. He probably was not the easiest of personalities, and used to boast about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Léon Humblot
Léon Joseph Henry Humblot (3 June 1852 in Nancy – 20 March 1914) was a French naturalist and botanical collector.Historical Dictionary of the Comoro Islands by Martin Ottenheimer, Harriet Ottenheimer He worked as a gardener for the in Paris, then in 1878 embarked on a research trip to , where he set up an experimental garden and collected |
Pollination Syndrome
Pollination syndromes are suites of flower traits that have evolved in response to natural selection imposed by different pollen vectors, which can be abiotic (wind and water) or biotic, such as birds, bees, flies, and so forth through a process called pollinator-mediated selection. These traits include flower shape, size, colour, odour, reward type and amount, nectar composition, timing of flowering, etc. For example, tubular red flowers with copious nectar often attract birds; foul smelling flowers attract carrion flies or beetles, etc. The "classical" pollination syndromes were first studied in the 19th century by the Italian botanist Federico Delpino. Although they are useful in understanding of plant-pollinator interactions, sometimes the pollinator of a plant species cannot be accurately predicted from the pollination syndrome alone, and caution must be exerted in making assumptions. The naturalist Charles Darwin surmised that the flower of the orchid '' Angraecum sesqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
