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Battersia Arctica
''Battersia arctica'' is a species of algae belonging to the family Sphacelariaceae. In Iceland, it is listed as a critically endangered species An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of the ... (CR).Náttúrufræðistofnun Íslands celandic Institute of Natural History(1996). Válisti 1: Plöntur.' (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands. Synonym: * '' Sphacelaria arctica'' Harvey, 1858 References {{Taxonbar, from=Q29913701 Brown algae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algae
Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular microalgae, such as cyanobacteria, ''Chlorella'', and diatoms, to multicellular macroalgae such as kelp or brown algae which may grow up to in length. Most algae are aquatic organisms and lack many of the distinct cell and tissue types, such as stomata, xylem, and phloem that are found in embryophyte, land plants. The largest and most complex marine algae are called seaweeds. In contrast, the most complex freshwater forms are the Charophyta, a Division (taxonomy), division of green algae which includes, for example, ''Spirogyra'' and stoneworts. Algae that are carried passively by water are plankton, specifically phytoplankton. Algae constitute a Polyphyly, polyphyletic group because they do not include a common ancestor, and although Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphacelariaceae
Sphacelariaceae is a family of algae Algae ( , ; : alga ) is an informal term for any organisms of a large and diverse group of photosynthesis, photosynthetic organisms that are not plants, and includes species from multiple distinct clades. Such organisms range from unicellular ... belonging to the order Sphacelariales. Genera: * '' Battersia'' Reinke ex Batters, 1890 * '' Chaetopteris'' Kützing, 1843 * '' Herpodiscus'' G.R.South, 1974 * '' Onslowia'' * '' Sphacelaria'' Lyngbye, 1818 * '' Sphacella'' Reinke, 1890 * '' Sphacelorbus'' Draisma, Prud'homme & H.Kawai, 2010 References {{Taxonbar, from=Q3493083 Brown algae Brown algae families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iceland
Iceland is a Nordic countries, Nordic island country between the Atlantic Ocean, North Atlantic and Arctic Oceans, on the Mid-Atlantic Ridge between North America and Europe. It is culturally and politically linked with Europe and is the region's westernmost and most list of countries and dependencies by population density, sparsely populated country. Its Capital city, capital and largest city is Reykjavík, which is home to about 36% of the country's roughly 380,000 residents (excluding nearby towns/suburbs, which are separate municipalities). The official language of the country is Icelandic language, Icelandic. Iceland is on a rift between Plate tectonics, tectonic plates, and its geologic activity includes geysers and frequent Types of volcanic eruptions, volcanic eruptions. The interior consists of a volcanic plateau with sand and lava fields, mountains and glaciers, and many Glacial stream, glacial rivers flow to the sea through the Upland and lowland, lowlands. Iceland i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Critically Endangered Species
An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of the 157,190 species currently on the IUCN Red List, 9,760 of those are listed as critically endangered, with 1,302 being possibly extinct and 67 possibly extinct in the wild. The IUCN Red List provides the public with information regarding the conservation status of animal, fungi, and plant species. It divides various species into seven different categories of conservation that are based on habitat range, population size, habitat, threats, etc. Each category represents a different level of global extinction risk. Species that are considered to be critically endangered are placed within the "Threatened" category. As the IUCN Red List does not consider a species extinct until extensive targeted surveys have been conducted, species that are p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphacelaria
''Sphacelaria'' is a genus of brown macroalgae (or seaweed) in the family Sphacelariaceae. Taxonomy and nomenclature The genus and its type species (''Sphacelaria reticulata'') were briefly described by Hans Christian Lyngbye in Florae Danicae in 1818. At the time of publication, such brief descriptions were considered to be valid by virtue of ''descriptio generico-specifica''; Lyngbye immediately added nine more species to the genus in 1819. Recent studies, however have revealed that this genus is polyphyletic, with the type species forming a separate clade with from the rest of the genus—in addition, it was also observed that ''S. reticulata'' does not exhibit the key morphological characteristics of the genus. Thus, it has been proposed to change the type species into ''S. cirrosa,'' one of the most widespread species, to conserve the genus name. Dr. Willem F. Prud’homme van Reine (1941–2020) was the foremost expert on ''Sphacelaria'' taxonomy and has contributed to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
