Salvinia molesta D.S. Mitch.

 
  • Family (Christenhusz et al, 2011) : SALVINIACEAE
  • Family (As per The Plant List) : Salviniaceae
  • Species : Salvinia molesta
  • Species Name (as per The Plant List) : Salvinia adnata Desv.
  • Key identification features : Aquatic free floating plants; stem spongy, terete, upto 2 mm thick brown, branched with nodes and internodes, bearing submerged leaf which is modified into about 5 cm long, root like organs which are covered by brown septate hairs. Normal leaves borne at the nodes in two opposite pairs, erect, floating, sessile, ovate to oblong, entire, pale green, erect with a common stalk, branched into four septate hooked branches; veins slightly distinct below, anastomosign to form parallel, elongated areoles; texture soft herbaceous; normal leaves spongy due to hairs; sporocarps borne in clusters on submerged leaves, about 10 in number, ovoid, upto 2 mm in diameter, sessile, densely hairy; microsporangia borne on the branched receptacle in cluster in microsporocarps; megasporangia borne in megasporocarps.
  • Habit : Herb-Aquatic
  • Comments : A fast spreading noxious weed in the paddy fields and ponds, especially in certain coastal regions.
  • Conservation Status : Not Evaluated (NE)
  • Distribution Locality : Dakshina Kannada; Mysore
  • Floras referred : Fraser-Jenkins, Taxonomic revision of Indian Subcontinental Pteridophytes 2008; Rajagopal & Bhat, Pteridophytic flora of Karnataka State- 1998; Manickam V.S & Irudayaraj V. (1992)- Pteridophyte flora of W.Ghats, South India

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