Dr. Jody Banks
Dr. Banks did some important work on sex determination in Ceratopteris.
Water Sprites, Ceratopteris
The Aquarium Gardener Series - Water Sprites, Ceratopteris
Ceratopteris richardii - images
Common name: triangle waterfern
Dr. Stan Roux Laboratory - Ceratopteris Research
"Studies of Ca2+-ATPase Involvement in the Gravity-Directed Calcium Current and Polar Axis Alignment of Germinating Ceratopteris richardii spores" Supplimental data: Full annotated alignment, Primer sequences. By: Thomas J. Bushart... etc.
Ceratopteris on Wikipedia
Ceratopteris is the only genus in the family Parkeriaceae, a small fern family. This genus is unusual among homosporous ferns in being exclusively aquatic. Pan-tropical.