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Lagarosiphon
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ..., with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Madagascariensis
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepted: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Ilicifolius
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Verticillifolius
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Steudneri
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Rubellus
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Muscoides
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Cordofanus
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Hydrilloides
''Lagarosiphon'' is a genus of aquatic plants described as a genus in 1841. It is native to Africa and Madagascar. It is dioecious, with male and female flowers produced on separate plants. Description These branched, aquatic herbs are covered in leaves. They may have an alternate, sub-opposite or whorled arrangement. The unisexual flowers are surrounded by auxiliary bracts. The male flowers have a six lobed perianth arranged in two rows. The outer lobes are slightly larger. They have three stamens and two to three staminodes. There are multiple flowers per bract. The female perianths are also made up of six lobes, with those making up the outer layer also being larger than those of the inner layer. The one chambered ovary has three partial placentas. The style is as long as the perianth tube. There are three stigmas, which maybe forked. There is one flower per bract. Distribution This genus is most common in tropical Africa. Species The following species are accepte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarosiphon Major
''Lagarosiphon major'' is a Monocotyledon, monocotic aquatic plant native to Southern Africa. Common names include African elodea, curly waterweed, oxygen weed and South African oxygen weed. It is used as freshwater aquarium plant. It is an invasive species, invasive plant in some countries. In New Zealand it is listed on the National Pest Plant Accord and is classed as a noxious weed in the United States. ''Lagarosiphon Major'' was added to the European Union's List of invasive alien species of Union concern, List of Invasive Alien Species of Union concern on 3 August 2016. This means - amongst other things- that it is illegal to sell this plant in the whole of the European Union or to dump it in the environment. Distribution Ireland: Co.Galway in parts of upper Lough Corrib.Pybus, C. and O'Halloran, P. 2009. Distribution of some submerged aquatic macrophytes in the Eglinton Canal. ''Ir. Nat. J.'' 30: 51-53. References External links Global Invasive Species DatabaseSpecies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocharitaceae
Hydrocharitaceae is a flowering plant family including 16 known genera with a total of ca 135 known species (Christenhusz & Byng 2016), that including a number of species of aquatic plant, for instance the tape-grasses, the well known Canadian waterweed, and frogbit. The family includes both freshwater and marine aquatics. They are found throughout the world in a wide variety of habitats, but are primarily tropical. Description The species are annual or perennial, with a creeping monopodial rhizome with the leaves arranged in two vertical rows, or an erect main shoot with roots at the base and spirally arranged or whorled leaves. The leaves are simple and usually found submerged, though they may be found floating or partially emerse. As with many aquatics they can be very variable in shape – from linear to orbicular, with or without a petiole, and with or without a sheathing base. The flowers are arranged in a forked, spathe-like bract or between two opposite bracts. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocharitaceae Genera
Hydrocharitaceae is a flowering plant family including 16 known genera with a total of ca 135 known species (Christenhusz & Byng 2016), that including a number of species of aquatic plant, for instance the tape-grasses, the well known Canadian waterweed, and frogbit. The family includes both freshwater and marine aquatics. They are found throughout the world in a wide variety of habitats, but are primarily tropical. Description The species are annual or perennial, with a creeping monopodial rhizome with the leaves arranged in two vertical rows, or an erect main shoot with roots at the base and spirally arranged or whorled leaves. The leaves are simple and usually found submerged, though they may be found floating or partially emerse. As with many aquatics they can be very variable in shape – from linear to orbicular, with or without a petiole, and with or without a sheathing base. The flowers are arranged in a forked, spathe-like bract or between two opposite bracts. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Plants
Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater). They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. A macrophyte is a plant that grows in or near water and is either emergent, submergent, or floating. In lakes and rivers macrophytes provide cover for fish, substrate for aquatic invertebrates, produce oxygen, and act as food for some fish and wildlife. Macrophytes are primary producers and are the basis of the food web for many organisms. They have a significant effect on soil chemistry and light levels as they slow down the flow of water and capture pollutants and trap sediments. Excess sediment will settle into the benthos aided by the reduction of flow rates caused by the presence of plant stems, leaves and roots. Some plants have the capability of absorbing pollutants into their tissue. Seaweeds are multicellular marine algae and, although their ecologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
