Dig deeper at SERNEC, a consortium of southeastern herbaria.
See herbarium specimens at the Atlas of Florida Vascular Plants
Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Salviniales
Taxonomy of the American Azolla species (Azollaceae) (Evrard & Van Hove, 2004)
No pictures are available at this time.