Which of the following species of salvinia is found in India?
Pictures
| Title | Foliage |
|---|---|
| Caption | Salvinia molesta (kariba weed); plants growing at 100m, Kerala, India. |
| Copyright | ©S.S. Bir |
How does salvinia reproduce?
Leaf pairs are produced at each node growing ropes of giant salvinia. The prolific plant reproduces by fragmenting. Pieces grow into entirely new plants. Individual plants or floating fragments are readily dispersed by wind, water currents, or people.
Is salvinia toxic?
It is classified as an invasive species internationally and can be detrimental to native ecosystems. This species is similar to but should not be confused with giant salvinia, Salvinia molesta….
| Salvinia minima | |
|---|---|
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Salviniales |
Is Salvinia a bryophyte?
Recent sources include both Azolla and Salvinia in Salviniaceae, although each genus was formerly given its own family. Salvinia, like the other ferns in order Salviniales, are heterosporous, producing spores of differing sizes. However, leaf development in Salvinia is unique….
| Salvinia | |
|---|---|
| Genus: | Salvinia Ség. |
| Species |
How do Salvinia and Azolla differ?
Salvinia megaspores are globose and characterized by a thick perispore, three distal chambers, and a three-lobed cavity, whereas those of Azolla have large floats at the distal end that provide a diagnostic feature for their identification as fossils (FIG. 11.204) (Hall and Swanson, 1968).
Is salvinia legal?
Salvinia molesta (giant salvinia) Illegal to sell in the US.
How fast do salvinia grow?
Giant salvinia is very prolific and under favor- able conditions can double the size of its mats in 7 to 10 days. As the mats continue to grow, they form thick layers of vegetation. Overseas, the layers have grown more than 2 feet thick.
Why is salvinia a problem?
Why is it a Problem? It is no exaggeration to say that Giant salvinia is one of the world’s worst weeds. It takes only a fragment of a single plant to multiply vegetatively and produce a thick floating mat of plants (called a “sudd”) on the surface of standing water (Holm and others, 1977).
Is Salvinia a fern?
Salvinia, a genus in the family Salviniaceae, is a floating fern named in honor of Anton Maria Salvini, a 17th-century Italian scientist. Watermoss is a common name for Salvinia. Salvinia is related to the other water ferns, including the mosquito fern Azolla.
Is Salvinia an aquatic fern?
Salvinia molesta, commonly known as giant salvinia, or as kariba weed after it infested a large portion of Lake Kariba between Zimbabwe and Zambia, is an aquatic fern, native to south-eastern Brazil.
What are the different types of Salvinia?
Other members include Salvinia auriculata Aubl., Salvinia biloba Raddi., and Salvinia herzogii de la Sota. Originally identified as a form of S. auriculata, S. molesta was renamed based on its fruiting bodies in 1972 ( Mitchell, 1972 ).
What animals spread Salvinia?
Birds, capybara, hippopotamus and waterbuffalo have all been documented to spread Salvinia between waterways ( Room and Julien, 1995; Forno and Smith, 1999 ).
What is the scientific name of Salvinia molesta?
In: Salvinia molesta D. Mitchell (Giant Salvinia) in the United States: A review of species ecology and approaches to management. Final Report, Vicksburg, Mississippi, USA: United States Army Corps of Engineers – Engineer Research and Development Center. 35 pp. Mitchell D S, 1979.
What are the members of the salvinia complex?
Named the “ Salvinia auriculata complex”, the members include S. auriculata Aublet, S. biloba Raddi, S. herzogii de la Sota, and S. molesta. Although subtle differences have been found among the members of the group, sporocarps are generally needed to tell these species apart (Forno 1983; Mitchell 1972).