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Salvinia minima is a species of aquatic, floating fern that grows on the surface of still waterways. [1] It is usually referred to as common salvinia or water spangles . Salvinia minima is native to South America, Mesoamerica, and the West Indies and was introduced to the United States in the 1920s–1930s. [ 2 ]
Salvinia or watermosses [1] is a genus of free-floating aquatic ferns in the family Salviniaceae.The genus is named in honor of 17th-century Italian naturalist Anton Maria Salvini, and the generic name was first published in 1754 by French botanist Jean-François Séguier in Plantae Veronenses, a description of the plants found around Verona. [2]
Salviniales are all aquatic and differ from all other ferns in being heterosporous, meaning that they produce two different types of spore (megaspores and microspores) that develop into two different types of gametophyte (female and male gametophytes, respectively), and in that their gametophytes are endosporic, meaning that they never grow outside the spore wall and cannot become larger than ...
The Salviniaceae contain the two genera Azolla and Salvinia, [4] with about 20 known species in total. [5] The oldest records of the family date to the Late Cretaceous. [ 6 ] Azolla was previously placed in its own family, Azollaceae , but research has shown Azolla and Salvinia to be sister genera with the likely phylogenic relationship shown ...
Salvinia molesta is a complex of closely related floating ferns; they can be difficult to distinguish from each other. This water fern is often grown as an ornamental plant but has escaped and become a noxious pest in many regions worldwide. There are a few different growth forms for S. molesta. The primary growth form is an invading form with ...
Cyrtobagous salviniae is a species of weevil known as the salvinia weevil. It is used as an agent of biological pest control against the noxious aquatic plant giant salvinia (Salvinia molesta). The adult weevil is about 2 millimeters long. It is brown in color during its first few days of adult life and soon turns shiny black.
Its growth rate might be the highest of all vascular plants. In the tropics and under optimal conditions, S. molesta can double its biomass within four days. The Salvinia effect, described here, most likely plays an essential role in its ecological success; the multilayered floating plant mats presumably maintain their function of gas exchange ...
Samea multiplicalis, the salvinia stem-borer moth, is an aquatic moth commonly found in freshwater habitats from the southern United States to Argentina, as well as in Australia where it was introduced in 1981. [3]