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Sciaromiopsis Sinensis
''Sciaromiopsis sinensis'' is a species of moss in the family Amblystegiaceae. It is endemic to China, where it is known from only three locations. This is an aquatic moss that only grows in clear rivers and streams. It has not been seen since the first specimens were collected 100 years ago, and its known habitat is now polluted and heavy with silt Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension (chemistry), suspension with water. Silt usually ..., so it is possible that it has become extinct.''Sciaromiopsis sinensis''. Swedish University of Agricultural Sciences. This moss forms glos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viktor Ferdinand Brotherus
Viktor Ferdinand Brotherus (28 October 1849 – 9 February 1929) was a Finnish botanist who studied the mosses (Bryophyta). He is best known for authoring the treatment of 'Musci' in Engler and Prantl's '' Die Naturlichen Pflanzenfamilien''. Personal life Brotherus was born in Skarpans in Sund, Åland while Finland was under Russian rule. He had 13 brothers and sisters of whom six died young. He took his Candidate of Philosophy degree in 1870 at Imperial Alexander University (later University of Helsinki) and began medical studies but gave them up after getting blood poisoning and became a teacher. He married Aline Mathilde Sandman (born 1853), daughter of Jonas Sandman, a Justice in the Court of Appeal, in 1879 at the age of thirty, and had four children. She died in 1894. He did not remarry. He taught natural history and mathematics at the Swedish girls' school in Vaasa City from 1878 to 1917, carrying on his career as a botanist in parallel. At his funeral, his grand-n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moss
Mosses are small, non-vascular plant, non-vascular flowerless plants in the taxonomic phylum, division Bryophyta (, ) ''sensu stricto''. Bryophyta (''sensu lato'', Wilhelm Philippe Schimper, Schimp. 1879) may also refer to the parent group bryophytes, which comprise Marchantiophyta, liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaf, leaves that are generally only one cell thick, attached to a plant stem, stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing sporangium, spores. They are typically tall, though some species ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amblystegiaceae
Amblystegiaceae is a family of mosses. It includes 20 to 30 genera with a total of up to 150 species. *'' Jankuceraea'' Ignatov & Ignatova2022 *'' Kandaea'' Jan Kučera & Hedenäs2020 *'' Koponenia'' Ochyra1985 *'' Larrainia'' W.R. Buck2015 *'' Leptodictyum'' (Schimp.) Warnst.1906 *'' Limbella'' (Müll. Hal.) Renauld & Cardot1899 *'' Microamblystegium'' Fedosov, Ignatova & Jan Kučera2021 *'' Microhypnum'' Jan Kučera & Ignatov2019 *'' Palustriella'' Ochyra1989 *'' Pictus'' C.C. Towns.1983 *'' Platyhypnum'' Loeske1911 *†'' Protoochyraea'' Ignatov1990 *'' Pseudoamblystegium'' Vanderp. & Hedenäs2009 *'' Pseudocampylium'' Vanderp. & Hedenäs2009 *'' Sasaokaea'' Broth.1929 *†'' Sciaromiadelphus'' Abramova & I.I. Abramov1967 *'' Serpoleskea'' (Hampe ex Limpr.) Loeske1905 *'' Tomentypnum'' Loeske1911 *'' Vittia'' Ochyra1987 Formerly included *'' Acrocladium'' Mitt.1869 – now in Acrocladiaceae *'' Apterygium'' Kindb.1885 – synonym of '' Platydictya'' *'' Callialaria'' Ochyra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after India, representing 17.4% of the world population. China spans the equivalent of five time zones and Borders of China, borders fourteen countries by land across an area of nearly , making it the list of countries and dependencies by area, third-largest country by land area. The country is divided into 33 Province-level divisions of China, province-level divisions: 22 provinces of China, provinces, 5 autonomous regions of China, autonomous regions, 4 direct-administered municipalities of China, municipalities, and 2 semi-autonomous special administrative regions. Beijing is the country's capital, while Shanghai is List of cities in China by population, its most populous city by urban area and largest financial center. Considered one of six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltation
Siltation is water pollution caused by particulate terrestrial clastic material, with a particle size dominated by silt or clay. It refers both to the increased concentration of suspended sediments and to the increased accumulation (temporary or permanent) of fine sediments on bottoms where they are undesirable. Siltation is most often caused by soil erosion or sediment spill. It is sometimes referred to by the ambiguous term "sediment pollution", which can also refer to a chemical contamination of sediments accumulated on the bottom, or to pollutants bound to sediment particles. Although "siltation" is not perfectly stringent, since it also includes particle sizes other than silt, it is preferred for its lack of ambiguity. Causes The origin of the increased sediment transport into an area may be erosion on land or activities in the water. In rural areas, the erosion source is typically soil degradation by intensive or inadequate agricultural practices, leading to soil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of China
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are Indigenous (ecology), indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Plants
In September 2016, the International Union for Conservation of Nature (IUCN) listed 3654 endangered plant species. Of all evaluated plant species, 17% are listed as endangered. The IUCN also lists 99 subspecies and 101 varieties as endangered. No subpopulations of plants have been evaluated by the IUCN. For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered plants are listed separately. There are 6147 plant species which are endangered or critically endangered. Additionally 1674 plant species (7.6% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
