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Lagarosiphon is a genus of aquatic plants described as a genus in 1841.[1][2] It is native to Africa and Madagascar.[3] It is dioecious, with male and female flowers produced on separate plants.[4]
| Lagarosiphon | |
|---|---|
 | |
| Lagarosiphon major | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Hydrocharitaceae |
| Subfamily: | Anacharioideae |
| Genus: | Lagarosiphon Harv. |
| Species | |
|
See text | |
Description
These branched, aquatic herbs are covered in leaves. They may have an alterante, sub-opposite or whorled arrangement.[5]
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.[5]
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.[5]
Distribution
This genus is most common in tropical Africa.[5]
Species
The following species are accepted:[3]
- Lagarosiphon cordofanus (Hochst.) Casp. - Cameroon + Ethiopia to Namibia + Mpumalanga
- Lagarosiphon hydrilloides Rendle - Ghana, Kenya, Uganda
- Lagarosiphon ilicifolius Oberm. - Uganda to Namibia
- Lagarosiphon madagascariensis Casp. - Madagascar
- Lagarosiphon major (Ridl.) Moss - Zimbabwe, Botswana, Lesotho, South Africa
- Lagarosiphon muscoides Harv. - Mali to Sudan to KwaZulu-Natal
- Lagarosiphon rubellus Ridl. - Angola
- Lagarosiphon steudneri Casp. - Ethiopia
- Lagarosiphon verticillifolius Oberm. - Mozambique, Zimbabwe, KwaZulu-Natal, Eswatini, Mpumalanga, Limpopo
References
- Harvey, William Henry. 1841. Journal of Botany, being a second series of the Botanical Miscellany 4: 230-231 descriptions in Latin, commentary in English, line drawing as illustration
- "Tropicos | Name - Lagarosiphon Harv". www.tropicos.org. Retrieved 2017-01-31.
- "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". apps.kew.org. Retrieved 2017-01-31.
- Francis, Robert A. (12 March 2012). A Handbook of Global Freshwater Invasive Species. ISBN 9781136461255.
- Phillips, Edwin Percy (1951). The genera of South African flowering plants. South Africa: Government Printer.
External links
- Lagarosiphon at the Encyclopedia of Life
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На других языках
- [en] Lagarosiphon
[es] Lagarosiphon
Lagarosiphon es un género de plantas acuáticas de la familia Hydrocharitaceae. Es originario del sur de África y Madagascar.[1] Comprende 19 especies descritas y de estas, solo 9 aceptadas.[2][fr] Lagarosiphon
Lagarosiphon est un genre de plantes aquatiques créé et décrit en 1841 par Harvey William Henry[1],[2]. Selon Tela Botanica, L. Major est aussi déjà trouvé dans plus d'une dizaine de départements français (mais est protégé en Nouvelle-Calédonie).Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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