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Azollaceae
''Azolla'' (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like other typical ferns but more resembling duckweed or some mosses. '' Azolla filiculoides'' is one of just two fern species for which a reference genome has been published. It is believed that this genus grew so prolifically during the Eocene (and thus absorbed such a large amount of carbon) that it triggered a global cooling event that has lasted to the present. Azolla is considered an invasive plant in wetlands, freshwater lakes and ditches. It can alter aquatic ecosystems and biodiversity substantially. Species Section ''Rhizosperma'' *'' Azolla imbricata'' *'' Azolla nilotica'' *''Azolla pinnata'' Section ''Azolla'' *'' Azolla cristata '' (this name takes priority over '' Azolla caroliniana'' ) *'' Azolla filiculoides'' *'' Azolla rubra'' : Sources: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Caroliniana
''Azolla cristata '', the Carolina mosquitofern, Carolina azolla or water velvet, is a species of ''Azolla'' native to the Americas, in eastern North America from southern Ontario southward, and from the east coast west to Wisconsin and Texas, and in the Caribbean, and in Central and South America from southeastern Mexico (Chiapas) south to northern Argentina and Uruguay. It is a freshwater aquatic fern, with scale-like fronds 5–10 mm long, green to reddish, most often reddish in strong light and in winter. They are covered in tiny protuberances called trichomes that give it the appearance of velvet.Flora of North America''Azolla cristata ''/ref>Aquatic Plant Information System It is able to fix nitrogen from the air by means of symbiotic cyanobacteria. It can survive winter water temperatures of 5 °C(41 degrees Fahrenheit), with optimum summer growth between 25–30 °C. (77-86 degrees Fahrenheit) NESACPackage of Practice for Azolla/ref> Identification The o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Cristata
''Azolla cristata '', the Carolina mosquitofern, Carolina azolla or water velvet, is a species of ''Azolla'' native to the Americas, in eastern North America from southern Ontario southward, and from the east coast west to Wisconsin and Texas, and in the Caribbean, and in Central and South America from southeastern Mexico (Chiapas) south to northern Argentina and Uruguay. It is a freshwater aquatic fern, with scale-like fronds 5–10 mm long, green to reddish, most often reddish in strong light and in winter. They are covered in tiny protuberances called trichomes that give it the appearance of velvet.Flora of North America''Azolla cristata ''/ref>Aquatic Plant Information System It is able to fix nitrogen from the air by means of symbiotic cyanobacteria. It can survive winter water temperatures of 5 °C(41 degrees Fahrenheit), with optimum summer growth between 25–30 °C. (77-86 degrees Fahrenheit) NESACPackage of Practice for Azolla/ref> Identification The o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Imbricata
''Azolla'' (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like other typical ferns but more resembling duckweed or some mosses. ''Azolla filiculoides'' is one of just two fern species for which a reference genome has been published. It is believed that this genus grew so prolifically during the Eocene (and thus absorbed such a large amount of carbon) that it triggered a global cooling event that has lasted to the present. Azolla is considered an invasive plant in wetlands, freshwater lakes and ditches. It can alter aquatic ecosystems and biodiversity substantially. Species Section ''Rhizosperma'' *''Azolla imbricata'' *''Azolla nilotica'' *'' Azolla pinnata'' Section ''Azolla'' *''Azolla cristata '' (this name takes priority over ''Azolla caroliniana'' ) *''Azolla filiculoides'' *''Azolla rubra'' : Sources: At least six e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Plant
''Azolla'' (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like other typical ferns but more resembling duckweed or some mosses. ''Azolla filiculoides'' is one of just two fern species for which a reference genome has been published. It is believed that this genus grew so prolifically during the Eocene (and thus absorbed such a large amount of carbon) that it triggered a global cooling event that has lasted to the present. Azolla is considered an invasive plant in wetlands, freshwater lakes and ditches. It can alter aquatic ecosystems and biodiversity substantially. Species Section ''Rhizosperma'' *''Azolla imbricata'' *''Azolla nilotica'' *'' Azolla pinnata'' Section ''Azolla'' *''Azolla cristata '' (this name takes priority over ''Azolla caroliniana'' ) *''Azolla filiculoides'' *''Azolla rubra'' : Sources: At least six e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Filiculoides Drawing
''Azolla'' (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the family Salviniaceae. They are extremely reduced in form and specialized, looking nothing like other typical ferns but more resembling duckweed or some mosses. ''Azolla filiculoides'' is one of just two fern species for which a reference genome has been published. It is believed that this genus grew so prolifically during the Eocene (and thus absorbed such a large amount of carbon) that it triggered a global cooling event that has lasted to the present. Azolla is considered an invasive plant in wetlands, freshwater lakes and ditches. It can alter aquatic ecosystems and biodiversity substantially. Species Section ''Rhizosperma'' *''Azolla imbricata'' *''Azolla nilotica'' *'' Azolla pinnata'' Section ''Azolla'' *''Azolla cristata '' (this name takes priority over ''Azolla caroliniana'' ) *''Azolla filiculoides'' *''Azolla rubra'' : Sources: At least six e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Rubra
''Azolla rubra,'' known commonly as red azolla and Pacific azolla is a species of fern native to Australia and New Zealand. In New Zealand, it may also be known by its Māori names , , and . Distribution ''Azolla rubra'' is found in Australia and New Zealand. Its range is thought to extend to Papua New Guinea, Indonesia and Japan. New Zealand Found on the North and South Islands of New Zealand, as well as Raoul Island in the Kermadecs. Habitat Forms extensive red mats on slow moving bodies of water such as streams, lakes, ponds and swamps. May also occur on man-made water bodies such as farm pond A pond is an area filled with water, either natural or artificial, that is smaller than a lake. Defining them to be less than in area, less than deep, and with less than 30% emergent vegetation helps in distinguishing their ecology from th ...s, drains, ditches, dams and cattle troughs. References Salviniales {{Polypodiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salviniaceae
Salviniaceae (), is a family of heterosporous ferns in the order Salviniales. The Salviniaceae contain the two genera ''Azolla'' and ''Salvinia'', with about 20 known species in total. The oldest records of the family date to the Late Cretaceous. ''Azolla'' was previously placed in its own family, Azollaceae, but research has shown ''Azolla'' and ''Salvinia'' to be sister genera with the likely phylogenic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ... relationship shown in the following diagram. References Salviniales Fern families {{Polypodiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Filiculoides
''Azolla filiculoides'' (water fern) is a species of ''Azolla'', native to warm temperate and tropical regions of the Americas which was introduced to Europe, North and sub-Saharan Africa, China, Japan, New Zealand, Australia, the Caribbean and Hawaii. It is a floating aquatic fern, with very fast growth, capable of spreading over lake surfaces to give complete coverage of the water in only a few months. Each individual plant is 1–2 cm across, green tinged pink, orange or red at the edges, branching freely, and breaking into smaller sections as it grows. It is not tolerant of cold temperatures and, in temperate regions it largely dies back in winter, surviving by means of submerged buds. It harbors the diazotrophic organism, ''Nostoc azollae'', in specialized leaf pockets. This ancient symbiosis allows ''N. azollae'' to fix nitrogen from the air and contribute to the fern's metabolism. Fossil records from as recent as the last interglacials are known from several location ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodiversity
Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic (''genetic variability''), species (''species diversity''), and ecosystem (''ecosystem diversity'') level. Biodiversity is not distributed evenly on Earth; it is usually greater in the tropics as a result of the warm climate and high primary productivity in the region near the equator. Tropical forest ecosystems cover less than 10% of earth's surface and contain about 90% of the world's species. Marine biodiversity is usually higher along coasts in the Western Pacific, where sea surface temperature is highest, and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time, but will be likely to slow in the future as a primary result of deforestation. It encompasses the evolutionary, ecological, and cultural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azolla Pinnata
''Azolla pinnata'' is a species of fern known by several common names, including mosquitofern, feathered mosquitofern and water velvet. It is native to much of Africa, Asia (Brunei Darussalam, China, India, Japan, Korea, and the Philippines) and parts of Australia. It is an aquatic plant, it is found floating upon the surface of the water. It grows in quiet and slow-moving water bodies because swift currents and waves break up the plant. At maximum growth rate, it can double its biomass in 1.9 days, with most strains attaining such growth within a week under optimal conditions. ''A''. ''pinnata'' is a small fern with a triangular stem measuring up to 2.5 centimeters in length that floats on the water. The stem bears many rounded or angular overlapping leaves each 1 or 2 millimeters long. They are green, blue-green, or dark red in color and coated in tiny hairs, giving them a velvety appearance. The hairs make the top surface of the leaf water-repellent, keeping the plant afloat ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
