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Salvinia

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Salvinia 

the only genus of the family Salviniaceae—a family of aquatic heterosporous ferns. The plants are rootless annuals or perennials. The leaves are closely arranged on the rhizome in whorls of three: two are entire and floating, and one is sporiferous and dissected into narrow rootlike lobules, which are submerged in the water. Some of the interior segments of the leaves bear spherical sporocarps containing microsporangia and megasporangia. There are about ten species, distributed in tropical America and Africa and, to a lesser degree, in North America and Eurasia. The USSR has one species—S. natans.
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SALVINACEAE Reichenbach SALVINIA Seguier Floating fern Floating aquatic, roots absent; leaves 3, dimorphic, 2 green, sessile, entire, floating and I finely dissected, petiolate, rootlike, submerged; sporocarps chainlike on submerged leaf.
Pteridophytes of southeast Alabama: Dichotomous keys, illustrations ... by Woods, Michael; Diamond, Alvin R., Jr / Journal of the Alabama Academy of Science
Absorcao e acumulo de cadmio e seus efeitos sobre o crescimento relativo de plantas de aguape e salvinia.
Removal of toxic heavy metals cadmium, lead and chromium from swine ... by Goncalves, Affonso Celso, Jr.; Lindino, Cleber Antonio; da Rosa, Mauricio Ferreira; Bariccatti, Rein / Acta Scientiarum Technology (UEM)
The fords of the spores of Salvinia natans are a significant indicator of the interglacial origin of the studied flora.
The sedimentary sequence recovered from the Voka outcrops, ... by Molodkov, Anatoly; Bolikhovskaya, Nataliya; Miidel, Avo; Ploom, Kuldev / Estonian Journal of Earth Sciences
 
 
 
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