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Parabaena
''Parabaena'' is a genus of flowering plants belonging to the family Menispermaceae. Its native range is Tropical and Subtropical Asia. Fossil record Pliocene seed and fruit fossils of †''Parabaena rhenana'' are described from sand-filled river-channels in the brown coal pit of Fortuna-Garsdorf near Bergheim, North Rhine-Westphalia in Germany Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ....Review of Palaeobotany and Palynology Volume 26, Issues 1–4, September 1978, Pages 173-211, The pliocene flora of Fortuna-Garsdorf I. fruits and seeds of angiosperms by J. Van Der Burgh https://doi.org/10.1016/0034-666 7(78)90011-8 Species Species: *'' Parabaena denudata'' *'' Parabaena echinocarpa'' *'' Parabaena elmeri'' *'' Parabaena megalocarpa'' *'' Parabaena sagittata'' *'' P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menispermaceae
Menispermaceae (botanical Latin: 'moonseed family' from Greek ''mene'' 'crescent moon' and ''sperma'' 'seed') is a family of flowering plants. The alkaloid tubocurarine, a neuromuscular blocker and the active ingredient in the 'tube curare' form of the dart poison curare, is derived from the South American liana '' Chondrodendron tomentosum''. Several other South American genera belonging to the family have been used to prepare the 'pot' and 'calabash' forms of curare. The family contains 68 genera with some 440 species, which are distributed throughout low-lying tropical areas with some species present in temperate and arid regions. Description * Twining woody climbing plants, winding anti-clockwise ('' Stephania'' winds clockwise) or vines, rarely upright shrubs or small trees, more rarely still herbaceous plants or epiphytes (''Stephania cyanantha''), perennial or deciduous, with simple to uni-serrate hairs. * Alternate spiral leaves, simple, whole, dentate, lobed to palm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Menispermaceae Genera
Menispermaceae (botanical Latin: 'moonseed family' from Greek ''mene'' 'crescent moon' and ''sperma'' 'seed') is a family of flowering plants. The alkaloid tubocurarine, a neuromuscular blocker and the active ingredient in the 'tube curare' form of the dart poison curare, is derived from the South American liana '' Chondrodendron tomentosum''. Several other South American genera belonging to the family have been used to prepare the 'pot' and 'calabash' forms of curare. The family contains 68 genera with some 440 species, which are distributed throughout low-lying tropical areas with some species present in temperate and arid regions. Description * Twining woody climbing plants, winding anti-clockwise ('' Stephania'' winds clockwise) or vines, rarely upright shrubs or small trees, more rarely still herbaceous plants or epiphytes (''Stephania cyanantha''), perennial or deciduous, with simple to uni-serrate hairs. * Alternate spiral leaves, simple, whole, dentate, lobed to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Miers (botanist)
John Miers, FRS FLS (25 August 1789 – 17 October 1879. Kensington), knight grand cross of the Order of the Rose, was a British botanist and engineer, best known for his work on the flora of Chile and Argentina. Miers was born in London to a jeweller from Yorkshire, and showed interest in mineralogy and chemistry from an early age. His first published work was a monograph on nitrogen which appeared in the ''Annals of Philosophy'' in 1814. After his marriage in 1818 he travelled to South America to participate in a venture to exploit the mineral resource of Chile, particularly copper. However, after landing in Buenos Aires his wife came down with childbed fever on the trip across country, and he decided not to continue to Chile, instead starting a study of the local flora, which at that time was largely unresearched. In May 1819 Miers arrived in Santiago, Chile, having arranged the clandestine transport of coin presses, and settled at Concón, near Valparaíso. He developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of broad-leaved trees, shrubs and vines, and most aquatic plants. The term "angiosperm" is derived from the Greek words ἀγγεῖον / ('container, vessel') and σπέρμα / ('seed'), meaning that the seeds are enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Angiosperms are distinguished from the other seed-producing plants, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids, endosperm within their seeds, and fruits that completely envelop the seeds. The ancestors of flowering plants diverged from the common ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Coal
Lignite, often referred to as brown coal, is a soft, brown, combustible, sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35%, and is considered the lowest rank of coal due to its relatively low heat content. When removed from the ground, it contains a very high amount of moisture which partially explains its low carbon content. Lignite is mined all around the world and is used almost exclusively as a fuel for steam-electric power generation. The combustion of lignite produces less heat for the amount of carbon dioxide and sulfur released than other ranks of coal. As a result, environmental advocates have characterized lignite as the most harmful coal to human health. Depending on the source, various toxic heavy metals, including naturally occurring radioactive materials may be present in lignite which are left over in the coal fly ash produced from its combustion, further increasing health risks. Characteristics Lignite is bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
