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Ulvaria (alga)
''Ulvaria'' is a genus of green algae in the family Ulvaceae. It is similar to ''Ulva'', but rather than being two cells thick, it is only one, despite its darker colour. Species in the genus ''Ulvaria'' * ''Ulvaria obscura ''Ulvaria obscura'' is an intertidal and subtidal benthic marine algae found in temperate and Arctic ocean waters around the world. Ecology ''Ulvaria obscura'' is a common marine algae, typically identified in algal blooms referred to as "Green ...'' * '' Ulvaria fusca'' * '' Ulva fenestrata'' References External links Ulvaceae Ulvophyceae genera {{Ulvophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Algae
The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister which contains the Chlorophyta and Charophyta/Streptophyta. The land plants (Embryophytes) have emerged deep in the Charophyte alga as sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to properly include them. The completed clade that includes both green algae and embryophytes is monophyletic and is referred to as the clade Viridiplantae and as the kingdom Plantae. The green algae include unicellular and colonial flagellates, most with two flagella per cell, as well as various colonial, coccoid and filamentous forms, and macroscopic, multicellular seaweeds. There are about 22,000 species of green algae. Many species live most of their lives as single cells, while other species form coenobia (colonies), long filaments, or highly differentiated macroscopic seaweeds. A few other organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulvaceae
Ulvaceae () is a widely distributed family of thin green algae having either a flat or a hollow tubular thallus, reproducing by the conjugation of planogametes or of zoospores, and being classed among the Ulotrichales or now more commonly placed in the order Ulvales. Genera in the family Ulvaceae * ''Enteromorpha'' * '' Enteronia'' * ''Gemina'' * '' Letterstedtia'' * ''Lobata'' * ''Ochlochaete'' * ''Percursaria'' * ''Phycoseris'' * ''Ruthnielsenia'' * '' Solenia'' * ''Ulva'' * '' Ulvaria'' * ''Umbraulva The genus ''Umbraulva'', which is a green alga within the Ulvaceae family, was proposed by Bae and Lee in 2001. The genus initially contained the three species that were initially studied to develop the genus, and since has had three new species ad ...'' References {{Taxonbar, from=Q1202732 Ulvophyceae families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Lettuce
The sea lettuces comprise the genus ''Ulva'', a group of edible green algae that is widely distributed along the coasts of the world's oceans. The type species within the genus ''Ulva'' is ''Ulva lactuca'', wikt:lactuca, ''lactuca'' being Latin for "lettuce". The genus also includes the species previously classified under the genus ''Enteromorpha'', the former members of which are known under the common name green nori. Description Individual blades of ''Ulva'' can grow to be more than 400 mm (16 in) in size, but this occurs only when the plants are growing in sheltered areas. A macroscopic alga which is light to dark green in colour, it is attached by disc holdfast. Their structure is a leaflike flattened thallus. Nutrition and contamination Sea lettuce is eaten by a number of different sea animals, including manatees and the sea slugs known as sea hares. Many species of sea lettuce are a food source for humans in Scandinavia, Great Britain, Ireland, China, and Japan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulvaria Obscura
''Ulvaria obscura'' is an intertidal and subtidal benthic marine algae found in temperate and Arctic ocean waters around the world. Ecology ''Ulvaria obscura'' is a common marine algae, typically identified in algal blooms referred to as "Green Tides". The species is distinct in its ability to produce the neurotransmitter dopamine as a herbivore defense mechanism. The species has a wide tolerance to various growth conditions, surviving temperatures between 5-29 °C, salinities from freshwater to complete saturation, and grows well under various light intensities. The species growth rate responds to increased dissolved inorganic nitrogen availability, making the species a possible indicator of anthropogenic pollution leading to eutrophication. Identification The thalli of ''Ulvaria obscura'' are bladelike, usually less than 5 cm tall and 8 cm thick, consisting of a single cell layer, and typically have between 2 and 6 pyrenoid Pyrenoids are sub-cellular m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulvaria Fusca
''Ulvaria'' may refer to: * ''Ulvaria'' (fish), an animal genus in the family Stichaeidae Stichaeidae, the pricklebacks or shannies, are a family of marine ray-finned fishes in the suborder Zoarcoidei of the order Scorpaeniformes. Most species are found in the North Pacific Ocean with a few in the North Atlantic Ocean. Taxonomy Stic ... * ''Ulvaria'' (alga), a plant genus in the family Ulvaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulva Fenestrata
Ulva (; gd, Ulbha) is a small island in the Inner Hebrides of Scotland, off the west coast of Mull. It is separated from Mull by a narrow strait, and connected to the neighbouring island of Gometra by a bridge. Much of the island is formed from Cenozoic basalt rocks, which are formed into columns in places. Ulva has been populated since the Mesolithic and there are various Neolithic remains on the island. The Norse occupation of the island in the Early Middle Ages has left few tangible artefacts but did bequeath the island its name, which is probably from ''Ulvoy'', meaning "wolf island". Celtic culture was a major influence during both Pictish and Dalriadan times as well as the post-Norse period when the islands became part of modern Scotland. This long period, when Gaelic became the dominant language, was ended by the 19th-century Clearances. At its height, Ulva had a population of over 800, but by May 2019, this had declined to 5; some increase in the number of residents wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
