Spongiidae
Euplectella
Class: Hexactinellida; Order: Lyssacinosida; Family: Euplectellidae.
Euspongia:
Euspongia Bronn., Spongiidae: See Spongia L. .
Spongia
Spongia L.
Bot. syn.: Euspongia Bronn.
A herbal distance course
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.