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Lomatia Polymorpha
''Lomatia polymorpha'', commonly known as mountain guitar plant, is a shrub or small tree of the family Proteaceae which is endemic to Tasmania. It is a shrub or small tree with linear leaves, and white, cream-coloured or greenish flowers. It is common throughout its range which is approximately complementary to that of '' L. tinctoria'' in Tasmania. Description ''Lomatia polymorpha'' is a shrub or small tree which grows to a height of between . It has simple leaves which are linear to narrow egg-shaped, long, wide, have a stalk about long and sometimes have a few lobes or teeth on the margins. The stems sometimes have a covering of matted hairs while the lower surface of the leaves is covered with rusty-coloured hairs and has a prominent mid-vein. The heads of flowers barely extend beyond the leaves and are white, cream or greenish-white in colour. Flowers appear between January and March and are followed by fruits which are dark grey to black and long. Taxonomy and naming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (Scottish Botanist From Montrose)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose, Angus, Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown (Scottis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1-Octacosanol
1-Octacosanol (also known as ''n''-octacosanol, octacosyl alcohol, cluytyl alcohol, montanyl alcohol) is a straight-chain aliphatic 28-carbon primary fatty alcohol that is common in the epicuticular waxes of plants, including the leaves of many species of ''Eucalyptus'', of most forage and cereal grasses, of ''Acacia'', ''Trifolium'', ''Pisum'' and many other legume genera among many others, sometimes as the major wax constituent.EA Baker (1982) Chemistry and morphology of plant epicuticular waxes. pp. 139–165. ''In'' "The Plant Cuticle". edited by DF Cutler, KL Alvin and CE Price. Academic Press, London. Octacosanol also occurs in wheat germ. Chemistry Octacosanol is insoluble in water but freely soluble in low molecular-weight alkanes and in chloroform. Biological effects Octacosanol is the main component in the mixture policosanol. Octacosanol has been subject to preliminary study for its potential benefit for patients with Parkinson's disease. Studies have also found that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Tasmania
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteales Of Australia
Proteales is an order of flowering plants consisting of three (or four) families. The Proteales have been recognized by almost all taxonomists. The representatives of the Proteales are very different from each other. The order contains plants that do not look alike at all. What they have in common is seeds with little or no endosperm. The ovules are often atropic. Families In the classification system of Dahlgren the Proteales were in the superorder Proteiflorae (also called Proteanae). The APG II system of 2003 also recognizes this order, and places it in the clade eudicots with this circumscription: * order Proteales :* family Nelumbonaceae :* family Proteaceae family Platanaceae">Platanaceae.html" ;"title=" family Platanaceae"> family Platanaceae with "+ ..." = optionally separate family (that may be split off from the preceding family). The APG III system of 2009 followed this same approach, but favored the narrower circumscription of the three families, firmly reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lomatia
''Lomatia'' is a genus of 12 species of evergreen flowering plants in the protea family Proteaceae. Within the family, they have been placed, alone, in their own subtribe, Lomatiinae according to Johnson & Briggs 1975 classification of the family and subsequently in ''Flora of Australia'' (1995). The genus has a Pacific Rim distribution, with members native to eastern Australia and southern South America, forming a part of the Antarctic flora. The species range from prostrate shrubs less than tall to small trees up to tall. Genetic analysis using microsatellite markers showed that species found close together geographically are most closely related to each other. ''Lomatia dentata'', then ''L. hirsuta'' and ''L. ferruginea'' all diverged successively from the lineage that gave rise to Australian species. The three Tasmanian species (with ''L. tasmanica'' sister to the other two species) are sister to the mainland Australian group. ''L. tasmanica'' of the three tasmania sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epicuticular Wax
Epicuticular wax is a coating of wax covering the outer surface of the plant cuticle in land plants. It may form a whitish film or bloom on leaves, fruits and other plant organs. Chemically, it consists of hydrophobic organic compounds, mainly straight-chain aliphatic hydrocarbons with or without a variety of substituted functional groups. The main functions of the epicuticular wax are to decrease surface wetting and moisture loss. Other functions include reflection of ultraviolet light, assisting in the formation of an ultra-hydrophobic and self-cleaning surface and acting as an anti-climb surface. Chemical composition Common constituents of epicuticular wax are predominantly straight-chain aliphatic hydrocarbons that may be saturated or unsaturated and contain a variety of functional groups. These waxes can be composed of a variety of compounds which differ between plant species. Paraffins occur in leaves of peas and cabbages. Leaves of carnauba palm and banana feature alkyl es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isoquercetin
Isoquercetin, isoquercitrin or isotrifoliin is a flavonoid, a type of chemical compound. It is the 3-''O''-glucoside of quercetin. Isoquercitrin can be isolated from various plant species including ''Mangifera indica'' ( mango) and ''Rheum nobile'' (the Noble rhubarb). It is also present in the leaves of ''Annona squamosa'', '' Camellia sinensis'' (tea). and ''Vestia foetida'' Spectral data The lambda-max for isoquercetin is 254.8 and 352.6 nm. Potential clinical uses Isoquercetin is presently being investigated for prevention of thromboembolism in selected cancer patients and as an anti- fatigue agent in kidney cancer patients treated with sunitinib. There is a single case report of its use in the successful treatment of prurigo nodularis, a difficult to treat pruritic eruption of the skin. However it belongs to the PAINS (Pan-assay interference compounds) categories of chemicals. References See also * Quercitrin Quercitrin is a glycoside formed from the flavono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxifolin
Taxifolin (5,7,3',4'-flavan-on-ol), also known as dihydroquercetin, belongs to the subclass flavanonols in the flavonoids, which in turn is a class of polyphenols. Stereocenters Taxifolin has two stereocenters on the C-ring, as opposed to quercetin which has none. For example, (+)-taxifolin has (2R,3R)-configuration, making it 1 out of 4 stereoisomers that comprise 2 pairs of enantiomers. Natural occurrences Taxifolin is found in non-glutinous rice boiled with adzuki bean (adzuki-meshi). It can be found in conifers like the Siberian larch, ''Larix sibirica'', in Russia, in ''Pinus roxburghii'', in ''Cedrus deodara'' and in the Chinese yew, '' Taxus chinensis var. mairei''. It is also found in the silymarin extract from the milk thistle seeds. Taxifolin is present in vinegars aged in cherry wood. Taxifolin, and flavonoids in general, can be found in many beverages and products. Specifically, taxifolin is found in plant-based foods like fruit, vegetables, wine, tea, and coco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavanoid
Flavonoids (or bioflavonoids; from the Latin word ''flavus'', meaning yellow, their color in nature) are a class of polyphenolic secondary metabolites found in plants, and thus commonly consumed in the diets of humans. Chemically, flavonoids have the general structure of a 15-carbon skeleton, which consists of two phenyl rings (A and B) and a heterocyclic ring (C, the ring containing the embedded oxygen). This carbon structure can be abbreviated C6-C3-C6. According to the IUPAC nomenclature, they can be classified into: *flavonoids or bioflavonoids *isoflavonoids, derived from 3-phenyl chromen-4-one (3-phenyl-1,4-benzopyrone) structure *neoflavonoids, derived from 4-phenylcoumarine (4-phenyl-1,2-benzopyrone) structure The three flavonoid classes above are all ketone-containing compounds and as such, anthoxanthins (flavones and flavonols). This class was the first to be termed bioflavonoids. The terms flavonoid and bioflavonoid have also been more loosely used to describe non-k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteaceae
The Proteaceae form a family of flowering plants predominantly distributed in the Southern Hemisphere. The family comprises 83 genera with about 1,660 known species. Together with the Platanaceae and Nelumbonaceae, they make up the order Proteales. Well-known genera include ''Protea'', ''Banksia'', ''Embothrium'', ''Grevillea'', ''Hakea'' and ''Macadamia''. Species such as the New South Wales waratah (''Telopea speciosissima''), king protea (''Protea cynaroides''), and various species of ''Banksia'', ''soman'', and ''Leucadendron'' are popular cut flowers. The nuts of ''Macadamia integrifolia'' are widely grown commercially and consumed, as are those of Gevuina avellana on a smaller scale. Australia and South Africa have the greatest concentrations of diversity. Etymology The name Proteaceae was adapted by Robert Brown from the name Proteae coined in 1789 for the family by Antoine Laurent de Jussieu, based on the genus ''Protea'', which in 1767 Carl Linnaeus derived from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1-Tetracosanol
1-Tetracosanol (lignoceryl alcohol) is a fatty alcohol containing 24 carbon atoms, usually derived from the fatty acid lignoceric acid Lignoceric acid, or tetracosanoic acid, is the saturated fatty acid with formula C23H47COOH. It is found in wood tar, various cerebrosides, and in small amounts in most natural fats. The fatty acids of peanut oil contain small amounts of lignoc .... References Fatty alcohols Primary alcohols Alkanols {{alcohol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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