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Blumea Riparia
''Blumea'' is a genus of flowering plants of the family Asteraceae. Characteristics Genus ''Blumea'' is found in the tropical and sub-tropical zones of Asia, especially the Indian Subcontinent and Southeast Asia. A few species are found in Australia and still fewer in Africa. The plants of this genus are mostly relatively small weeds. Some of them are ruderal species. A few of the species were formerly included in genus ''Conyza''. Many species of genus ''Blumea'' are used in traditional Chinese medicine. Other uses include as decorative dry plants. ''Blumea balsamifera'' (Nat; หนาด) is reputed to ward off spirits in Thai folklore, and is used in Philippines herbal medicine as well. '' Blumea axillaris'' (syn. ''Blumea mollis'') leaf essential oil contains linalool ( 19%), γ-elemene (c. 12%), copaene (c. 11%), estragole (c.11%), ''allo''-ocimene (c. 10%), γ-terpinene (8%) and ''allo''-aromadendrene (c. 7%). The essential oil had significant toxic effect against ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blumea Balsamifera
''Blumea balsamifera'' is a flowering plant belonging to the genus ''Blumea'' of the family Asteraceae. It is also known as Ngai camphor and sambong (also sembung). Description In the Philippines, where it is most commonly known as sambong, ''Blumea balsamifera'' is used in traditional herbal medicine for the common cold and as a diuretic. It is also used for infected wounds, respiratory tract infection, respiratory infections, and stomach pains in Thailand, Thai and China, Chinese traditional medicine, folk medicine. The genus ''Blumea'' is found in the tropical and sub-tropical zones of Asia, especially the Indian Subcontinent and Southeast Asia. ''Blumea balsamifera'' is one of its species that is used in Southeast Asia. A weed, this plant is a ruderal species that often grows on disturbed land,Sambo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copaene
Copaene, or more precisely, α-copaene, is the common (or trivial) chemical name of an oily liquid hydrocarbon that is found in a number of essential oil-producing plants. The name is derived from that of the resin-producing tropical copaiba tree, '' Copaifera langsdorffii'', from which the compound was first isolated in 1914. Its structure, including the chirality, was determined in 1963. The double-bond isomer with an exocyclic- methylene group, β-copaene, was first reported in 1967. Chemically, the copaenes are tricyclic sesquiterpenes. The molecules are chiral, and the α-copaene enantiomer most commonly found in higher plants exhibits a negative optical rotation of about −6°. The rare (+)-α-copaene is also found in small amounts in some plants. (+)-α-copaene is of economic significance because it is strongly attracting to an agricultural pest, the Mediterranean fruit fly ''Ceratitis capitata ''Ceratitis capitata'', commonly known as the Mediterranean fruit fly or med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blumea Arfakiana
''Blumea'' is a genus of flowering plants of the family Asteraceae. Characteristics Genus ''Blumea'' is found in the tropical and sub-tropical zones of Asia, especially the Indian Subcontinent and Southeast Asia. A few species are found in Australia and still fewer in Africa. The plants of this genus are mostly relatively small weeds. Some of them are ruderal species. A few of the species were formerly included in genus ''Conyza''. Many species of genus ''Blumea'' are used in traditional Chinese medicine. Other uses include as decorative dry plants. ''Blumea balsamifera'' (Nat; หนาด) is reputed to ward off spirits in Thai folklore, and is used in Philippines herbal medicine as well. '' Blumea axillaris'' (syn. ''Blumea mollis'') leaf essential oil contains linalool ( 19%), γ-elemene (c. 12%), copaene (c. 11%), estragole (c.11%), ''allo''-ocimene (c. 10%), γ-terpinene (8%) and ''allo''-aromadendrene (c. 7%). The essential oil had significant toxic effect against ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Of The World Online
Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online in March 2017 with the goal of creating an exhaustive online database of all seed-bearing plants worldwide. (Govaerts wrongly speaks of "Convention for Botanical Diversity (CBD)). The initial focus was on tropical African flora, particularly flora ''Zambesiaca'', flora of West and East Tropical Africa. Since March 2024, the website has displayed AI-generated predictions of the extinction risk for each plant. Description The database uses the same taxonomical source as the International Plant Names Index, which is the World Checklist of Vascular Plants (WCVP). The database contains information on the world's flora gathered from 250 years of botanical research. It aims to make available data from projects that no longer have an online ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Herbarium Of The Netherlands
The National Herbarium of the Netherlands (Dutch language, Dutch: ''Nationaal Herbarium Nederland'') is one of largest herbarium, herbaria in the world with some 5.5 million specimens. It was established in through a decentralized merger of the major university herbaria of Leiden University, Leiden (also known as the Rijksherbarium), University of Utrecht, Utrecht and Wageningen University and Research Centre, Wageningen. Each of the three had its own focus. The National Herbarium currently consists of two branches: *Leiden University *Wageningen University and Research centre. The Utrecht herbarium has been closed and in 2009 its stock was transferred to Leiden, where it is curated by the Naturalis, Naturalis Biodiversity Centre. It is planned that Naturalis (the Netherlands' Natural History Museum and Centre for Biodiversity) will run the National Herbarium. The NHN coordinates several flora projects. "Flora Malesiana" and "Flora of the Guianas" have their seat in Leiden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blumea (journal)
''Blumea - Journal of Plant Taxonomy and Plant Geography'' (''Tijdschrift voor de Systematiek en de Geografie der Planten'' in Dutch) is a peer-reviewed journal of botany published by the National Herbarium of the Netherlands. Except for a short period during World War II, ''Blumea'' has been published continuously since 1934. It deals with the taxonomy, morphology, anatomy, biogeography, and ecology of spermatophytes and cryptogams native to Southeast Asia, sub-Saharan Africa (excluding South Africa), and South America. ''Blumea'' is published three times a year, with each issue numbering around 600 pages. References External links Publication homepage''Blumea'' online at IngentaConnectBlumeaat SCImago Journal Rank Blumeaat HathiTrust HathiTrust Digital Library is a large-scale collaborative repository of digital content from research libraries. Its holdings include content digitized via Google Books and the Internet Archive digitization initiatives, as well as content d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LC90
LC9, LC-9, or LC/9 may refer to: * LC9, a rocket launch pad at the Andøya Rocket Range , , or is the northernmost island in the Vesterålen archipelago, situated about inside the Arctic Circle. Andøya is located in Andøy Municipality in Nordland county, Norway. The main population centres on the island include the villages of ..., Norway * Buick V6 LC9, an engine made by General Motors from 1978 to 1979 * Cape Canaveral Air Force Station Launch Complex 9, a rocket launch pad in Florida * LC9 (band), a South Korean boy group * Ruger LC9, a semi-automatic pistol * LC9 Vortec 5300, a small-block engine made by General Motors {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LC50
In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a given substance. The value of LD50 for a substance is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures are frequently used as a general indicator of a substance's acute toxicity. A lower LD50 is indicative of higher toxicity. The term LD50 is generally attributed to John William Trevan. The test was created by J. W. Trevan in 1927. The term semilethal dose is occasionally used in the same sense, in particular with translations of foreign language text, but can also refer to a sublethal dose. LD50 is usually determined by tests on animals such as laboratory mice. In 2011, the U.S. Food and Drug Administration approved alternative methods to LD50 for testing the cosmetic drug botox without animal tests. Conventions The LD50 is usually expressed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culex Quinquefasciatus
''Culex quinquefasciatus'' (originally named ''Culex fatigans''), commonly known as the southern house mosquito, is a medium-sized mosquito found in tropical and subtropical regions of the world. It is a vector of ''Wuchereria bancrofti'', avian malaria, and arboviruses including St. Louis encephalitis virus, Western equine encephalitis virus, Zika virus and West Nile virus. It is taxonomically regarded as a member of the ''Culex pipiens'' species complex. Its genome was sequenced in 2010, and was shown to have 18,883 protein-coding genes. Etymology American entomologist Thomas Say described ''Culex quinquefasciatus'', which he collected along the Mississippi River, in 1823. Originally written as "C. 5-fasciatus", the name refers to five (''quinque'') black, broad, transverse bands ("fasciatus" or "fasciae") on the mosquito's dorsal abdomen. The name remains despite later revelations of more than five fasciae, thanks to improved microscopy. Although ''quinquefasciatus'' is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
