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.

References in periodicals archive ?
As salvinia takes over, native plants may be starved of these basic resources.
En las tablas 1, 2 y 3 y en las figuras 1, 3 y 5 se muestran los valores de concentracion de cianuro al inicio y al final de cada jornada de tratamiento, junto al porcentaje de remocion, permitiendonos deducir que las macrofitas acuaticas retiran cianuro del agua residual, siendo la mas eficiente en la primera jornada el policultivo con valores de 44,55, 44,09, y 47,27% (Tabla 1, Figura 1); en la jornada del tratamiento II (Tabla 2, Figura 3), la planta mas eficiente fue la Salvinia auriculata con porcentajes de remocion de 39,39, 34,53 y 31,97%.
LOCAL Utricularia foliosa Poaceae tipo Paspalum 1,35 5,08 15 Poaceae diversa 5 Eichhornia azurea 51 95 Eichhornia crassipes 85 50 Salvinia minima 19 59 Pistia stratiotes 12 14 Lemna minor 4 Ludwigia helminthorrhiza 7 28 Polygonum densiflorum 38 0,17 2 Cyperus sp.
The historical listing of Salvinia natans for Bacons' swamp is also problematic to interpret without a voucher specimen.
2008), Salvinia molesta (Mora-Olivo y Yatskievych, 2009) y Alternantheraphiloxeroides (Mora-Olivo, en prensa).
Srilaxmi R Sareddy GR, Kavi Kishor PB, Setty OH, Babu PR Protective efficacy of natansnin, a dibenzoyl glycoside from Salvinia natans against CCI4 induced oxidative stress and cellular degeneration in rat liver.
azurea, Oxycaryum cubense, Thalia mult(flora, Salvinia biloba, Pistia stratiotes, Ludwigia peploides y Nymphaea prolifera.
Four fern taxa (Marsilea, Salvinia, Ampelopteris and Ceratopteris) distributed in four families were also documented in the present study (Table 1).
Las macrofitas flotantes comprenden un amplio y variado grupo de plantas, entre las que se destacan el jacinto de agua (Eichhornia crassipes), la lechuga de agua (Pistia strartiotes), la salvinia (Salvinia Spp.
water hyacinth), Nymphoides indica (water snowflake), Salvinia sp.
In the study, Bharat Bhushan and his team of engineers from the Ohio State University have illustrated how they recreated the texture of the Brazilian fern Salvinia molesta, which resembles a carpet of tiny eggbeater-shaped fibres.
Saccharum spontaneum grows in dense stands along the margin of the lake, and Salvinia natans covers much of the shallow water areas near the lake edge.