PlantNET Home DONATE TODAY | PlantNET Home | Search NSW Flora | Contact Us  
FloraOnline
Introduction
Plant Name Search
Index Search
Spatial Search
Identification Keys
Classification
Glossary
HerbLink (Type Images)
WeedAlert
Other PlantNET Sites
Other Data Sources
NEW SOUTH WALES FLORA ONLINE Printable Page

Family Salviniaceae

Synonyms: Azollaceae APNI*

Description: Small aquatic ferns, free-floating; rhizome short-creeping, vernation circinate. Stems dichotomously branched.

Leaves sessile, alternate, small, c. 1–25 mm long, round to oblong, entire.

Spores of 2 types (plants heterosporous), large megaspores and small megaspores, these globose, trilete.


Distribution and occurrence: World: 2 genera, 16 species, widespread in tropical & subtropical regions. Australia: 2 genera, 2 species native, 1 naturalised.

External links:
Wikipedia

Text by Peter G. Wilson; updated Louisa Murray Jan 2013
Taxon concept: Smith & al. (2006) Fern Classification. Taxon 55(3) 711-712

 Key to the genera 
1Frond of 2 floating, foliar leaves and 1 submerged, root-like, sporocarp-bearing leaf; floating leaves broad or roundedSalvinia
1Frond of numerous, crowded, ovate to triangular, bilobed leaves; spore capsules in axil of submerged leaf lobeAzolla

  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET